Details of the Researcher

PHOTO

Shinya Takaishi
Section
Graduate School of Science
Job title
Associate Professor
Degree

  • 博士（理学）（筑波大学）

  • 修士（理学）（筑波大学）

Research History 3

  • 2011/05 - 2012/03
    Northwestern University

  • 2004/09 - 2004/10
    東北大学大学院理学研究科　博士研究員

  • 2003/04 - 2004/08
    東京都立大学大学院理学研究科　博士研究員

Education 2

  • University of Tsukuba　Graduate School, Division of Chemistry　Departmen of Chemistry

    - 2003/03/25

  • University of Tsukuba　Colledge of Natural Sciences, First Cluster of Colledge　Departmen of Chemistry

    - 1998/03/25

Committee Memberships 6

  • 錯体化学会　錯体化学討論会運営委員

    2015/04 - 2016/03

  • 錯体化学会　錯体化学討論会運営委員

    2015/04 - 2016/03

  • 錯体化学会　錯体化学討論会運営委員

    2013/10 - 2014/09

  • 錯体化学会　錯体化学討論会運営委員

    2013/10 - 2014/09

  • 錯体化学若手の会　事務局長

    2008/04 - 2009/03

  • 錯体化学若手の会　事務局長

    2008/04 - 2009/03

Show all ︎Show first 5

Professional Memberships 3

  • 分子科学会

  • 錯体化学会

  • 日本化学会

Research Interests 2

  • 水素吸着

  • 強相関一次元電子系

Research Areas 4

  • Nanotechnology/Materials / Inorganic materials /

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Electronic devices and equipment /

  • Nanotechnology/Materials / Functional solid-state chemistry /

  • Nanotechnology/Materials / Basic physical chemistry /

Awards 2

  1. 日本化学会進歩賞

    2011/03/26　日本化学会

  2. 錯体化学会研究奨励賞

    2010/09/29　錯体化学会

Papers 153

  1. Double Core–Shell Semiconducting Molecular Chain Halogen-Bridged Metal Complexes with Ohmic Contact Heterojunctions

    Masanori Wakizaka, Keisuke Ishiguro, Takefumi Yoshida, Hiroaki Iguchi, Takao Tsumuraya, Hiroshi Ito, Masahiro Yamashita, Shinya Takaishi

    ACS Applied Materials & Interfaces　17　(9)　14322-14328　2025/02/21

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsami.4c22128 　

    ISSN： 1944-8244

    eISSN： 1944-8252

  2. Hydrogen isotope separation at exceptionally high temperature using an unsaturated organometallic complex

    Taku Kitayama, Tamon Yamauchi, Kaiji Uchida, Shunya Tanaka, Ryojun Toyoda, Hiroaki Iguchi, Ryota Sakamoto, Hao Xue, Naoki Kishimoto, Takefumi Yoshida, Tomoya Uruga, Shin-ichiro Noro, Shinya Takaishi

    Dalton Transactions　2025

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d4dt03018d 　

    ISSN： 1477-9226

    eISSN： 1477-9234

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    A new approach for hydrogen isotope separation that allows H2/D2 separation above room temperature is proposed.

  3. Ultrafast Luminescence Detection with Selective Adsorption of Carbon Disulfide in a Gold(I) Metal−Organic Framework

    Haruka Yoshino, Masaki Saigo, Takumi Ehara, Kiyoshi Miyata, Ken Onda, Jenny Pirillo, Yuh Hijikata, Shinya Takaishi, Wataru Kosaka, Keni-ichi Otake, Susumu Kitagawa, Hitoshi Miyasaka

    Angewandte Chemie International Edition　2024/11/26

    Publisher: Wiley

    DOI： 10.1002/anie.202413830 　

    ISSN： 1433-7851

    eISSN： 1521-3773

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    Although a widely used and important industrial chemical, carbon disulfide (CS2) also poses a number of hazards due to its volatility and toxicity. As such, the development of multifunctional materials for the selective capture and easy recognition of CS2 is one of the crucial issues. Herein, we demonstrate completely selective CS2 adsorption among trials involving H2O, alcohols, volatile organic compounds (including thiol derivatives), N2, H2, O2, CH4, CO, NO, and CO2. We also showcase its fine detection using remarkable luminescent response in an Au(I)‐based metal−organic framework (MOF) of {ZnII(pz)[AuI(CN)2]2} (pz = pyrazine; 1) with a two‐fold interpenetration network. Ex situ single crystal X‐ray diffraction for 1 and CS2 accommodated 1 suggested that the Au···Au atoms are not only luminescent centers but also act as interaction sites for CS2 modulating the Au···Au contacts. These experiments revealed the specificity of CS2 and how changes in the CS2‐induced structure. Based on the obtained structural formation, 1 exhibited a sensitive detecting ability for CS2 with an ultrafast response time of less than 10 s. Ex situ time‐resolved photoluminescence analyses developed in this work implied that CS2 varied the energetic relaxation at the excited states related to the luminescent efficiency of the resultant MOF system.

  4. Flash Communication: High-Pressure Synthesis and Post-synthetic Elimination of N2 Molecule of the Chromium Dinitrogen Complex, [Cr(PCy3)2(CO)3(N2)]

    Kaiji Uchida, Taku Kitayama, Shunya Tanaka, Shuta Adachi, Hiroaki Iguchi, Ryota Sakamoto, Shinya Takaishi

    ORGANOMETALLICS　44　(3)　459-463　2024/11/07

    DOI： 10.1021/acs.organomet.4c00373 　

    ISSN： 0276-7333

    eISSN： 1520-6041

  5. Enhanced hydrogen uptake of dihydrogen complex via porous materials support

    Kaiji Uchida, Shunya Tanaka, Shuta Adachi, Hiroaki Iguchi, Ryota Sakamoto, Shinya Takaishi

    RSC Advances　14　(16)　11452-11455　2024/04/09

    DOI： 10.1039/d4ra01182a 　

    eISSN： 2046-2069

  6. Spin dynamics in a Heisenberg weak antiferromagnetic chain of an iodide-bridged Cu(ii) complex

    Masanori Wakizaka, Miroslaw Arczynski, Shraddha Gupta, Shinya Takaishi, Masahiro Yamashita

    DALTON TRANSACTIONS　52　(30)　10294-10297　2023/08

    DOI： 10.1039/d3dt01840g 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  7. Structure and Physical Properties of Alternately Stacked Donor-acceptor Complexes with 5,11-Dimethyl-5,11-dihydroindolo[3,2-b]carbazole

    Yuta Chiba, Tappei Tanabe, Shohei Koyama, Shuntaro Yamanaka, Shinya Takaishi, Ryota Sakamoto, Hiroaki Iguchi

    CHEMISTRY LETTERS　52　(6)　488-491　2023/06

    DOI： 10.1246/cl.230175 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  8. Creation of a Field-Induced Co(II) Single-Ion Magnet by Doping into a Zn(II) Diamagnetic Metal-Organic Framework

    Masanori Wakizaka, Ryuta Ishikawa, Hisaaki Tanaka, Shraddha Gupta, Shinya Takaishi, Masahiro Yamashita

    SMALL　2023/05

    DOI： 10.1002/smll.202301966 　

    ISSN： 1613-6810

    eISSN： 1613-6829

  9. Quinoid-Based Three-Dimensional Metal–Organic Framework Fe2(dhbq)3: Porosity, Electrical Conductivity, and Solid-State Redox Properties

    Shraddha Gupta, Haruki Tanaka, Kentaro Fuku, Kaiji Uchida, Hiroaki Iguchi, Ryota Sakamoto, Hiroaki Kobayashi, Yoshiyuki Gambe, Itaru Honma, Yutaka Hirai, Shinya Hayami, Shinya Takaishi

    Inorganic Chemistry　2023/04/13

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.inorgchem.2c04313 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  10. Slow Magnetic Relaxations of Ni(III) Complexes Toward Molecular Spin Qubits Peer-reviewed

    Keiga Toshima, Tetsu Sato, Yoji Horii, Kazunobu Sato, Kenji Sugisaki, Brian Breedlove, Shinya Takaishi, Zhao-Yang Li, Masahiro Yamashita

    European Journal of Inorganic Chemistry　2023/03/30

    Publisher: Wiley

    DOI： 10.1002/ejic.202300125 　

    ISSN： 1434-1948

    eISSN： 1099-0682

  11. Deprotonation-Induced Color Modulation in N,N'-Dihydroxynaphthalenediimide-Based Organic Crystals. International-journal

    Tappei Tanabe, Tetsu Sato, Kentaro Fuku, Shinya Takaishi, Hiroaki Iguchi

    ChemPlusChem　e202300140　2023/03/27

    DOI： 10.1002/cplu.202300140 　

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    N,N'-dihydroxy-1,4,5,8-naphthalenetetracarboxdiimide (NDI-(OH)2) has attracted much attention in recent years, because its doubly deprotonated state, (O-NDI-O)2-, has metal-coordination ability and characteristic electronic transition useful for designing electronic and optical functions. In contrast, a molecular crystal with the mono-deprotonated (HO-NDI-O)- ion remains unknown. We herein report an organic crystal containing non-disproportionated  (HO-NDI-O)- ions, which are connected by very strong O-H-O hydrogen bonds. Its lowest energy absorption band (450 to 650 nm) is observed in between that of NDI-(OH)2 (380 nm) and isolated (O-NDI-O)2- (500 to 850 nm) species, consistent with the molecular orbital calculations. This absorption originates from the electronic transition from deprotonated imide-based orbitals to NDI-core orbitals, which can be influenced by the hydrogen bonds around imide group. Consequently, the optical properties of NDI-(OH)2 can be modulated by the stepwise deprotonation and hydrogen-bonding interactions.

  12. Data Mining from XANES Spectra of Nickel Complexes for Structure Estimation

    Kentaro Fuku, Takefumi Yoshida, Tetsu Sato, Hiroaki Iguchi, Shinya Takaishi, Ryota Sakamoto, Hitoshi Abe

    Chemistry Letters　2023/03/03

    Publisher: The Chemical Society of Japan

    DOI： 10.1246/cl.230028 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  13. A New Organic Conductor of Tetramethyltetraselenafulvalene (TMTSF) with a Magnetic Dy(III) Complex

    Qingyun Wan, Masanori Wakizaka, Haitao Zhang, Yongbing Shen, Nobuto Funakoshi, Chi-Ming Che, Shinya Takaishi, Masahiro Yamashita

    MAGNETOCHEMISTRY　9　(3)　2023/03

    DOI： 10.3390/magnetochemistry9030077 　

    eISSN： 2312-7481

  14. Chemical pressure-induced PtIII–I Mott–Hubbard nanowire, [Pt(en)2I](Asp-Cn)2·H2O (13 ≤ n), detected via polarized infrared spectroscopy

    Shohei Kumagai, Takefumi Yoshida, Hiroaki Iguchi, Masanori Wakizaka, Nobuto Funakoshi, Masahiro Yamashita, Shinya Takaishi

    Chemical Communications　59　(95)　14118-14121　2023

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d3cc04285e 　

    ISSN： 1359-7345

    eISSN： 1364-548X

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    Polarized FT-IR spectra of the Pt–I semiconductive nanowire, [Pt(en)2I](Asp-Cn)2·H2O, revealed that the first PtIII–PtIII AV state for n ≥ 13.

  15. Hexagonal crystalline Magnus’ green salt analogues prepared from hydroxy-functionalised Pt and Pd complexes

    Mohammad Rasel Mian, Unjila Afrin, Shinya Takaishi, Brian K. Breedlove, Masahiro Yamashita, Hiroaki Iguchi

    Dalton Transactions　2023

    DOI： 10.1039/d3dt01700a 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  16. Macro- and atomic-scale observations of a one-dimensional heterojunction in a nickel and palladium nanowire complex

    Masanori Wakizaka, Shohei Kumagai, Hashen Wu, Takuya Sonobe, Hiroaki Iguchi, Takefumi Yoshida, Masahiro Yamashita, Shinya Takaishi

    Nature Communications　13　(1)　2022/12

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41467-022-28875-8 　

    eISSN： 2041-1723

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    <title>Abstract</title>The creation of low-dimensional heterostructures for intelligent devices is a challenging research topic; however, macro- and atomic-scale connections in one-dimensional (1D) electronic systems have not been achieved yet. Herein, we synthesize a heterostructure comprising a 1D Mott insulator [Ni(chxn)2Br]Br2 (<bold>1</bold>; chxn = 1<italic>R</italic>-2<italic>R</italic>-diaminocyclohexane) and a 1D Peierls or charge-density-wave insulator [Pd(chxn)2Br]Br2 (<bold>2</bold>) using stepwise electrochemical growth. It can be considered as the first example of electrochemical liquid-phase epitaxy applied to molecular-based heterostructures with a macroscopic scale. Moreover, atomic-resolution scanning tunneling microscopy images reveal a modulation of the electronic state in the heterojunction region with a length of five metal atoms (~ 2.5 nm), that is a direct evidence for the atomic-scale connection of <bold>1</bold> and <bold>2</bold>. This is the first time that the heterojunction in the 1D chains has been shown and examined experimentally at macro- and atomic-scale. This study thus serves as proof of concept for heterojunctions in 1D electronic systems.

  17. Porous Mn2+ Magnet with a Pt–Cl Framework: Correlation between Water Vapor Adsorption/Desorption and Slow Magnetic Relaxation

    Hirotaka Nakajima, Kaiji Uchida, Takefumi Yoshida, Yoji Horii, Tetsu Sato, Zhang Luming, Satoshi Yamashita, Yasuhiro Nakazawa, Verdad C. Agulto, Makoto Nakajima, Brian K. Breedlove, Masahiro Yamashita, Hiroaki Iguchi, Shinya Takaishi

    ChemPhysChem　2022/10/26

    Publisher: Wiley

    DOI： 10.1002/cphc.202200618 　

    ISSN： 1439-4235

    eISSN： 1439-7641

  18. Benzenetriimide‐Based Molecular Conductor with Antiferro‐ to Ferromagnetic Switching Induced by Structural Change of π‐stacked Array

    Shohei Koyama, Yoji Horii, Tetsu Sato, Shinya Takaishi, Norihisa Hoshino, Tomoyuki Akutagawa, Hiroaki Iguchi

    ChemPhysChem　23　(19)　2022/10/06

    Publisher: Wiley

    DOI： 10.1002/cphc.202200322 　

    ISSN： 1439-4235

    eISSN： 1439-7641

  19. Trimetallic Mixture of Ni(III), Pd(III) and Au(III) Ions in a Molecule-Based Bromide-Bridged MX-Chain Compound

    Masanori Wakizaka, Hashen Wu, Zhao Yang Li, Hiroaki Iguchi, Shinya Takaishi, Masahiro Yamashita

    Bulletin of the Chemical Society of Japan　95　(7)　1032-1038　2022/07

    DOI： 10.1246/bcsj.20220137 　

    ISSN： 0009-2673

    eISSN： 1348-0634

  20. Ni(III) Mott–Hubbard-like State Containing High-Spin Ni(II) in a Semiconductive Bromide-Bridged Ni-Chain Compound

    Masanori Wakizaka, Mohammad Rasel Mian, Takefumi Yoshida, Tetsu Sato, Hisaaki Tanaka, Tatsuya Miyamoto, Hiroshi Okamoto, Shinya Takaishi, Hiroaki Iguchi, Masahiro Yamashita

    Inorganic Chemistry　2022/06/13

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.inorgchem.2c00473 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  21. Syntheses, Structures, and Properties of Coordination Polymers with 2,5-Dihydroxy-1,4-Benzoquinone and 4,4′-Bipyridyl Synthesized by In Situ Hydrolysis Method

    Daiki Yamazui, Kaiji Uchida, Shohei Koyama, Bin Wu, Hiroaki Iguchi, Wataru Kosaka, Hitoshi Miyasaka, Shinya Takaishi

    ACS Omega　7　(22)　18259-18266　2022/06/07

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsomega.1c07077 　

    ISSN： 2470-1343

    eISSN： 2470-1343

  22. Hydrogen bonding propagated phase separation in quasi-epitaxial single crystals: a Pd-Br molecular insulator

    Takefumi Yoshida, Shinya Takaishi, Laurent Guérin, Tatsuhiro Kojima, Hiroyoshi Ohtsu, Masaki Kawano, Tatsuya Miyamoto, Hiroshi Okamoto, Kenichi Kato, Masaki Takata, Yuka Hosomi, Shoji Yoshida, Hidemi Shigekawa, Hisaaki Tanaka, Shin-ichi Kuroda, Hiroaki Iguchi, Brian Breedlove, Zhao-Yang Li, Masahiro Yamashita

    2022/05/11

    Publisher: Research Square Platform {LLC}

    DOI： 10.21203/rs.3.rs-1579855/v1 　

  23. An electrically conductive metallocycle: densely packed molecular hexagons with π-stacked radicals

    Mengxing Cui, Ryuichi Murase, Yongbing Shen, Tetsu Sato, Shohei Koyama, Kaiji Uchida, Tappei Tanabe, Shinya Takaishi, Masahiro Yamashita, Hiroaki Iguchi

    Chemical Science　13　(17)　4902-4908　2022/04

    DOI： 10.1039/d2sc00447j 　

    ISSN： 2041-6520

    eISSN： 2041-6539

  24. Bromine Vapor Induced Continuous p- to n-Type Conversion of a Semiconductive Metal-Organic Framework Cu[Cu(pdt)<inf>2</inf>]

    Shraddha Gupta, Haruki Tanaka, Tetsu Sato, Shen Ye, Brian K. Breedlove, Hiroaki Iguchi, Shinya Takaishi

    Inorganic Chemistry　61　(10)　4414-4420　2022/03/14

    DOI： 10.1021/acs.inorgchem.1c03933 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  25. Thermally induced electron-hole dissociation dynamics in quasi-one-dimensional bromo-bridged palladium(iii) Mott-insulator [Pd(en)<inf>2</inf>Br](Suc-C<inf>n</inf>)<inf>2</inf>·H<inf>2</inf>O (C<inf>n</inf>-Y = dialkylsulfosuccinate; n = 5 and 6)

    Shohei Kumagai, Hiroaki Iguchi, Masahiro Yamashita, Shinya Takaishi

    Physical Chemistry Chemical Physics　24　(13)　7978-7982　2022/03/08

    DOI： 10.1039/d2cp00051b 　

    ISSN： 1463-9076

  26. Charge-density-wave Amplitude in Quasi-one-dimensional Halogen-bridged Palladium Complex, [Pd(15N-en)2Br](Suc-C5)2 H2O (Suc-C5 = Dipentylsulfosuccinate), Estimated by 15N Solid-state NMR

    Shohei Kumagai, Hiroaki Iguchi, Masahiro Yamashita, Sadamu Takeda, Shinya Takaishi

    Chemistry Letters　51　(3)　281-283　2022/03

    DOI： 10.1246/cl.210804 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  27. Hidden Heterometallic Interaction Emerges from Resonant Inelastic X-ray Scattering in Luminescent Tb–Pt Molecules

    Takefumi Yoshida, Ahmed Shabana, David Chukwuma Izuogu, Kentaro Fuku, Tetsu Sato, Haitao Zhang, Yukina Yamamoto, Jun Kamata, Hitomi Ohmagari, Miki Hasegawa, Goulven Cosquer, Shinya Takaishi, Takuma Kaneko, Tomoya Uruga, Yasuhiro Iwasawa, Masahiro Yamashita

    2022/03/01

    Publisher: American Chemical Society (ACS)

    DOI： 10.26434/chemrxiv-2022-mqppg 　

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    Theoretical calculations are typically utilized for examining intermetallic interactions. However, to validate theory, experimental confirmation of the existence of these interactions is necessary. We synthesized new heterometallic Ln–Pt complexes, NEt4{[Pt(PhSAc)4]Ln[(PhSAc)4Pt]}·2DMF (Ln: lanthanoid = Gd (1), Tb (2), Dy (3), PhSAc = benzothioacetate, NEt4 = tetraethylammonium), in which both diamagnetic Pt(II) ions interact with the central Ln(III) ion. Typically, these interactions are not detected, because the distance between Ln and Pt atoms (~3.6 Å) is much larger than the covalent radius (~3.3 Å) and ionic radius (~3.10 Å). Pt-LIII resonant inelastic X-ray scattering (RIXS) analysis was conducted to experimentally confirm the unique influence of the hidden Ln–Pt interaction on the luminescence of the Tb–Pt molecule, where the interaction induced emission properties in the Tb and Pt ions, with high quantum yield (59%). Quantum theory of atoms in molecules (QTAIM) analysis was also used to confirm the experimental results. RIXS analysis allowed the identification of several distinctive characteristics of the coordination environment, including the existence of heterometallic interactions, that affected the observed luminescence.

  28. Elucidating 2D Charge‐Density‐Wave Atomic Structure in an MX–Chain by the 3D‐ΔPair Distribution Function Method**

    Laurent Guérin, Takefumi Yoshida, Edoardo Zatterin, Arkadiy Simonov, Dmitry Chernyshov, Hiroaki Iguchi, Bertrand Toudic, Shinya Takaishi, Masahiro Yamashita

    ChemPhysChem　2022/02/17

    Publisher: Wiley

    DOI： 10.1002/cphc.202100857 　

    ISSN： 1439-4235

    eISSN： 1439-7641

  29. Insight into the Gd–Pt Bond: Slow Magnetic Relaxation of a Heterometallic Gd–Pt Complex

    Takefumi Yoshida, Ahmed Shabana, Haitao Zhang, David Chukwuma Izuogu, Tetsu Sato, Kentaro Fuku, Hitoshi Abe, Yoji Horii, Goulven Cosquer, Norihisa Hoshino, Tomoyuki Akutagawa, Alex J. W. Thom, Shinya Takaishi, Masahiro Yamashita

    2021/11/10

    Publisher: American Chemical Society (ACS)

    DOI： 10.26434/chemrxiv-2021-rpkq9 　

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    Lanthanide (Ln) compounds are common research targets in the field of magnetism and optics. Their properties arise from the electron localized in the f-orbital. Moreover, the effect of the covalency between lanthanide and ligands on magnetism attracted significant attention. We provided insight into the Gd–Pt bond (of the heterometallic Ln-Pt complexes: {[Pt(PhSAc)4]Ln[(PhSAc)4Pt]} NEt4·2DMF (Ln = Y(0), La(1), Gd(2); PhSAc = thiobenzoate, NEt4 = tetraethylammonium)); single-crystal polarized X-ray absorption near edge structure (XANES) reveal the electronic states around metal ion, where spectra of Gd-LIII edges show the Gd–Pt direction has the highest covalency (less ionic) around Gd ion in 2. In addition, calculating natural bonding (NBO) analysis, natural population analysis (NPA), LOL, and atoms in molecules (AIM), ab initio calculations reveal the role of metallic and organic ligands in the electronic and magnetic properties of Ln complexes. The slow magnetization relaxation of the Gd complex, which has not been reported previously in the Pt–Gd–Pt system, was observed up to 45K, the highest temperature reported to date among isolated Gd-complexes.

  30. Interdigitated Pt-Br chains with π-stacking: an approach toward Robin-Day class I mixed valency in MX-chain complexes

    Unjila Afrin, Kentaro Fuku, Mengxing Cui, Hiroaki Iguchi, Mohammad Rasel Mian, Ryo Nakanishi, Shinya Takaishi, Masahiro Yamashita

    Dalton Transactions　50　(40)　14125-14129　2021/10/28

    DOI： 10.1039/d1dt02996g 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  31. Surface Ohmic Conductivity on a Mott Insulator Based on a One-dimensional Bromide-bridged Nickel(III) Complex

    Masanori Wakizaka, Hiroaki Iguchi, Shinya Takaishi, Masahiro Yamashita

    Chemistry - An Asian Journal　16　(19)　2947-2951　2021/10/04

    DOI： 10.1002/asia.202100637 　

    ISSN： 1861-4728

    eISSN： 1861-471X

  32. Reversible hydrogen adsorption at room temperature using a molybdenum-dihydrogen complex in the solid state

    Kaiji Uchida, Naoki Kishimoto, Shin-ichiro Noro, Hiroaki Iguchi, Shinya Takaishi

    DALTON TRANSACTIONS　50　(36)　12630-12634　2021/09

    DOI： 10.1039/d1dt01404h 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  33. Electron-Conductive Metal-Organic Framework, Fe(dhbq)(dhbq = 2,5-Dihydroxy-1,4-benzoquinone): Coexistence of Microporosity and Solid-State Redox Activity

    Kazuki Kon, Kaiji Uchida, Kentaro Fuku, Shuntaro Yamanaka, Bin Wu, Daiki Yamazui, Hiroaki Iguchi, Hiroaki Kobayashi, Yoshiyuki Gambe, Itaru Honma, Shinya Takaishi

    ACS Applied Materials and Interfaces　13　(32)　38188-38193　2021/08/18

    DOI： 10.1021/acsami.1c06571 　

    ISSN： 1944-8244

    eISSN： 1944-8252

  34. Bluish hydrochromic naphthalenediimide salt: Change of hydrogen-bond interactions as the new mechanism of vapochromism

    Tappei Tanabe, Tetsu Sato, Kentaro Fuku, Kaiji Uchida, Tamon Yamauchi, Shinya Takaishi, Hiroaki Iguchi

    Chemistry Letters　50　(8)　1479-1482　2021/08

    DOI： 10.1246/cl.210275 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  35. S = ½ Heterospin Frustration in a Metal‒Fullerene-Bonded Semiconductive Antiferromagnet

    Yongbing Shen, Mengxing Cui, Shinya Takaishi, Takao Tsumuraya, Akihiro Otsuka, Eunsang Kwon, Takefumi Yoshida, Norihisa Hoshino, Kazuhiko Kawachi, Yasuhiko Kasama, Tomoyuki Akutagawa, Masahiro Yamashita

    2021/07/23

    Publisher: Research Square Platform LLC

    DOI： 10.21203/rs.3.rs-701194/v1 　

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    <title>Abstract</title> Lithium-ion-encapsulated fullerenes (Li+@C60) are 3D superatoms with rich oxidative states. However, no current studies have reported Li+@C60 as ligands. Here, we report a conductive and magnetically frustrated metal–fullerene-bonded framework {[Cu4(Li+@C60)(L)(py)4](NTf2)(hexane)n (<bold>1</bold>) prepared from redox-active dinuclear metal complex Cu2(L)(py)4 and lithium-ion-encapsulated fullerene salt (Li+@C60)(NTf2−), where ligand L denotes 1,2,4,5-tetrakis(methanesulfonamido)benzene, py pyridine, and NTf2− the bis(trifluoromethane)sulfonamide anion. Electron donor Cu2(L)(py)2 bonds to acceptor Li+@C60 <italic>via</italic> eight Cu‒C bonds. Cu–C bond formation stems from spontaneous charge transfer (CT) between Cu2(L)(py)4 and (Li+@C60)(NTf2−) by removing the two-terminal py molecules, yielding triplet ground state [Cu2(L)(py)2]+(Li+@C•‒ 60), evidenced by absorption and electron paramagnetic resonance (EPR) spectra, magnetic properties, and quantum chemical calculations. Moreover, Li+@C•‒ 60 radicals (<italic>S</italic> = ½) and Cu2+ ions (<italic>S</italic> = ½) interact antiferromagnetically in triangular spin lattices in the absence of long-range magnetic ordering up to 1.8 K; thus, compound <bold>1</bold> is a potential candidate for an <italic>S</italic> = ½ quantum spin liquid.

  36. An unusual Pd(iii) oxidation state in the Pd–Cl chain complex with high thermal stability and electrical conductivity

    Mohammad Rasel Mian, Masanori Wakizaka, Takefumi Yoshida, Hiroaki Iguchi, Shinya Takaishi, Unjila Afrin, Tatsuya Miyamoto, Hiroshi Okamoto, Hisaaki Tanaka, Shin-ichi Kuroda, Brian K. Breedlove, Masahiro Yamashita

    Dalton Transactions　2021

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d0dt03848b 　

    ISSN： 1477-9226

    eISSN： 1477-9234

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    <p>A thermally stable and highly electrically conductive Pd(<sc>iii</sc>) 1D complex [Pd(dabdOH)2Cl]Cl2 was newly synthesized.</p>

  37. Synthesis, Structure and Physical Properties of (trans-TTF-py2)1.5(PF6)·EtOH: A Molecular Conductor with Weak CH∙∙∙N Hydrogen Bondings

    Shohei Koyama, Morio Kawai, Shinya Takaishi, Masahiro Yamashita, Norihisa Hoshino, Tomoyuki Akutagawa, Manabu Kanno, Hiroaki Iguchi

    Crystals　10　(12)　1081-1081　2020/11/26

    Publisher: MDPI AG

    DOI： 10.3390/cryst10121081 　

    eISSN： 2073-4352

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    The studies of crystal structures with hydrogen bonds have been actively pursued because of their moderate stabilization energy for constructing unique structures. In this study, we synthesized a molecular conductor based on 2,6-bis(4-pyridyl)-1,4,5,8-tetrathiafulvalene (trans-TTF-py2). Two pyridyl groups were introduced into the TTF skeleton toward the structural exploration in TTF-based molecular conductors involved by hydrogen bonds. In the obtained molecular conductor, (trans-TTF-py2)1.5(PF6)·EtOH, short contacts between the pyridyl group and the hydrogen atom of the TTF skeleton were observed, indicating that hydrogen bonding interactions were introduced in the crystal structure. Spectroscopic measurements and conductivity measurement revealed semiconducting behavior derived from π-stacked trans-TTF-py2 radical in the crystal structure. Finally, these results are discussed with the quantified hydrogen bonding stabilization energy, and the band calculation of the crystal obtained from density functional theory calculation.

  38. Preliminary chemical reduction for synthesizing a stable porous molecular conductor with neutral metal nodes

    Shohei Koyama, Tappei Tanabe, Shinya Takaishi, Masahiro Yamashita, Hiroaki Iguchi

    Chemical Communications　56　(86)　13109-13112　2020/11/07

    DOI： 10.1039/d0cc03541f 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  39. Electrical Conductivity-Relay between Organic Charge-Transfer and Radical Salts toward Conductive Additive-Free Rechargeable Battery Peer-reviewed

    Yui Fujihara, Hiroaki Kobayashi, Shinya Takaishi, Takaaki Tomai, Masahiro Yamashita, Itaru Honma

    ACS Applied Materials & Interfaces　12　(23)　25748-25755　2020/05

    DOI： 10.1021/acsami.0c03642 　

    ISSN： 1944-8244

    eISSN： 1944-8252

  40. Emergence of electrical conductivity in a flexible coordination polymer by using chemical reduction Peer-reviewed

    Kentaro Fuku, Momoka Miyata, Shinya Takaishi, Takefumi Yoshida, Masahiro Yamashita, Norihisa Hoshino, Tomoyuki Akutagawa, Hiroyoshi Ohtsu, Masaki Kawano, Hiroaki Iguchi

    Chemical Communications　56　(61)　8619-8622　2020

    DOI： 10.1039/d0cc03062g 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  41. Conductive zigzag Pd(III)–Br chain complex realized by multiple-hydrogen-bond approach Peer-reviewed

    Mohammad Rasel Mian, Unjila Afrin, Hiroaki Iguchi, Shinya Takaishi, Takefumi Yoshida, Tatsuya Miyamoto, Hiroshi Okamoto, Hisaaki Tanaka, Shin-ichi Kuroda, Masahiro Yamashita

    CrystEngComm　22　(23)　3999-4004　2020

    DOI： 10.1039/D0CE00332H 　

    eISSN： 1466-8033

  42. An Organic‐Inorganic Hybrid Exhibiting Electrical Conduction and Single‐Ion‐Magnetism International-coauthorship Peer-reviewed

    Yongbing Shen, Goulven Cosquer, Hiroshi Ito, David Chukwuma Izuogu, Alex J.W. Thom, Toshiaki Ina, Tomoya Uruga, Takefumi Yoshida, Shinya Takaishi, Brian K. Breedlove, Zhao-Yang Li, Masahiro Yamashita

    Angew. Chem. Ed. Int.　59　2399-2406　2020

    DOI： 10.1002/anie.201910523 　

  43. Organic-Inorganic Hybrid Gold Halide Perovskites: Structural Diversity through Cation Size Peer-reviewed

    Murasugi Hideaki, Kumagai Shohei, Iguchi Hiroaki, Yamashita Masahiro, Takaishi Shinya

    CHEMISTRY-A EUROPEAN JOURNAL　25　(42)　9885-9891　2019/07/25

    DOI： 10.1002/chem.201901288 　

    ISSN： 0947-6539

  44. MX-type single chain complexes with an aromatic in-plane ligand: incorporation of aromatic interactions for stabilizing the chain structure Peer-reviewed

    Afrin Unjila, Iguchi Hiroaki, Mian Mohammad Rasel, Takaishi Shinya, Yamakawa Hiromichi, Terashige Tsubasa, Miyamoto Tatsuya, Okamoto Hiroshi, Yamashita Masahiro

    DALTON TRANSACTIONS　48　(22)　7828-7834　2019/06/14

    DOI： 10.1039/c9dt00784a 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  45. Smallest Optical Gap for Pt(II)-Pt(IV) Mixed-Valence Pt-Cl and Pt-Br Chain Complexes Achieved by Using a Multiple-Hydrogen-Bond Approach Peer-reviewed

    Mian M. Rasel, Iguchi H, Takaishi S, Afrin U, Miyamoto T, Okamoto H, Yamashita M

    INORGANIC CHEMISTRY　58　(1)　114-120　2019/01/07

    DOI： 10.1021/acs.inorgchem.8b01910 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  46. Formation of pores and π-stacked columns in benzothienobenzothiophene-based linear coordination polymers Peer-reviewed

    Shohei Koyama, Hiroaki Iguchi, Shinya Takaishi, Goulven Cosquer, Shohei Kumagai, Jun Takeya, Toshihiro Okamoto, Masahiro Yamashita

    Chemistry Letters　48　(8)　756-759　2019

    DOI： 10.1246/cl.190276 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  47. Porous Molecular Conductor: Electrochemical Fabrication of Through-Space Conduction Pathways among Linear Coordination Polymers International-coauthorship Peer-reviewed

    L. Qu, H. Iguchi, S. Takaishi, F. Habib, C. F. Leong, D. M.D'Alessandro, T. Yoshida, H. Abe, E. Nishibori, M. Yamashita

    J. Am. Chem. Soc.　141　6802-6806　2019

    DOI： 10.1021/jacs.9b01717 　

  48. Observation of charge bistability in quasi-one-dimensional halogen-bridged palladium complexes by X-ray absorption spectroscopy Peer-reviewed

    Takefumi Yoshida, Shinya Takaishi, Shohei Kumagai, Hiroaki Iguchi, Rasel Mian Mohamad, Masahiro Yamashita

    Dalton Trans.　48　11628-11631　2019

    DOI： 10.1039/C9DT01684H 　

  49. Structural Study of Bromide-Bridged Pd Chain Complex with Weak CH center dot center dot center dot O Hydrogen Bonds Peer-reviewed

    Mian Mohammad Rasel, Iguchi Hiroaki, Miyata Momoka, Takaishi Shinya, Yamakawa Hiromichi, Terashige Tsubasa, Miyamoto Tatsuya, Okamoto Hiroshi, Yamashita Masahiro

    ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE　644　(14)　646-651　2018/08/02

    DOI： 10.1002/zaac.201700461 　

    ISSN： 0044-2313

  50. MX-Chain compounds with ReO4 counterions: Exploration of the robin-day class I-II boundary Peer-reviewed

    Shohei Kumagai, Shinya Takaishi, Mengqi Gao, Hiroaki Iguchi, Brian K. Breedlove, Masahiro Yamashita

    Inorganic Chemistry　57　(7)　3775-3781　2018/04/02

    DOI： 10.1021/acs.inorgchem.7b03051 　

    ISSN： 1520-510X 0020-1669

  51. Correlation between Chemical and Physical Pressures on Charge Bistability in [Pd(en)2Br](Suc-Cn)2·H2O Peer-reviewed

    Shohei Kumagai, Shinya Takaishi, Hiroaki Iguchi, Brian K. Breedlove, Takuya Kaneko, Hiroshi Ito, Shin-Ichi Kuroda, Masahiro Yamashita

    Inorganic Chemistry　57　(1)　12-15　2018/01/02

    DOI： 10.1021/acs.inorgchem.7b02566 　

    ISSN： 1520-510X 0020-1669

  52. Three dimensional porous Hofmann clathrate [(MPtII)-Pt-II(CN)(4)](infinity) (M = Co, Ni) synthesized by using postsynthetic reductive elimination Peer-reviewed

    Takuro Okamura, Bin Wu, Hiroaki Iguchi, Brian K. Breedlove, Masahiro Yamashita, Wataru Kosaka, Hitoshi Miyasaka, Shinya Takaishi

    CHEMICAL COMMUNICATIONS　53　(48)　6512-6515　2017/06

    DOI： 10.1039/c7cc01766a 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  53. Multiple-Hydrogen-Bond Approach to Uncommon Pd(III) Oxidation State: A Pd-Br Chain with High Conductivity and Thermal Stability Peer-reviewed

    Mohammad Rasel Mian, Hiroaki Iguchi, Shinya Takaishi, Hideaki Murasugi, Tatsuya Miyamoto, Hiroshi Okamoto, Hisaaki Tanaka, Shin-ichi Kuroda, Brian K. Breedlove, Masahiro Yamashita

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　139　(19)　6562-6565　2017/05

    DOI： 10.1021/jacs.7b02558 　

    ISSN： 0002-7863

  54. Temperature dependence of Peierls-Hubbard phase transition in [Pd(cptn)(2)Br]Br-2 studied by scanning tunneling microscopy Peer-reviewed

    Yuka Hosomi, Shoji Yoshida, Atsushi Taninaka, Takefumi Yoshida, Shinya Takaishi, Osamu Takeuchi, Masahiro Yamashita, Hidemi Shigekawa

    JAPANESE JOURNAL OF APPLIED PHYSICS　55　(8)　08NB16　2016/08

    DOI： 10.7567/JJAP.55.08NB16 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  55. A highly emissive distyrylthieno[3,2-b] thiophene based red luminescent organic single crystal: Aggregation induced emission, optical waveguide edge emission, and balanced ambipolar carrier transport Peer-reviewed

    Shuai Mu, Kazuaki Oniwa, Tienan Jin, Naoki Asao, Masahiro Yamashita, Shinya Takaishi

    ORGANIC ELECTRONICS　34　23-27　2016/07

    DOI： 10.1016/j.orgel.2016.04.001 　

    ISSN： 1566-1199

    eISSN： 1878-5530

  56. Optically Visible Phase Separation between Mott-Hubbard and Charge-Density-Wave Domains in a Pd-Br Chain Complex Peer-reviewed

    Takefumi Yoshida, Shinya Takaishi, Hiroaki Iguchi, Hiroshi Okamoto, Hisaaki Tanaka, Shin-ichi Kuroda, Yuka Hosomi, Shoji Yoshida, Hidemi Shigekawa, Tatsuhiro Kojima, Hiroyoshi Ohtsu, Masaki Kawano, Brian K. Breedlove, Laurent Guerin, Masahiro Yamashita

    CHEMISTRYSELECT　1　(2)　259-263　2016/02

    DOI： 10.1002/slct.201600065 　

    ISSN： 2365-6549

  57. Structural insights into the counterion effects on the manganese(III) spin crossover system with hexadentate Schiff-base ligands Peer-reviewed

    Shi Wang, Wu-Tan Xu, Wen-Rui He, Shinya Takaishi, Yong-Hua Li, Masahiro Yamashita, Wei Huang

    DALTON TRANSACTIONS　45　(13)　5676-5688　2016

    DOI： 10.1039/c5dt04824a 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  58. 17pAF-7 Electronic state of Br bridged Pd complex exhibiting CDW-MH transition

    Takaishi,S, Yoshida,T, Yamashita,M, Okamoto,H, Tanaka,H, Kuroda,S, Hosomi,Y, Yoshida,S, Shigekawa,H

    日本物理学会講演概要集　70　(2)　1577-1577　2015/09

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.70.2.0_1577 　

    ISSN： 2189-079X

  59. 23pCP-2 Effect of THz electric field on [Pd(en)_2Br](MalC_7-Y)_2・H_2O, a Mott insulator

    Ono T., Okamoto H., Terashige T., Miyamoto T., Hamaguchi T., Yada H., Kida N., Takaishi S., Kumagai S., Yamashita M.

    Meeting Abstracts of the Physical Society of Japan　70　1543-1543　2015

    Publisher: The Physical Society of Japan

    DOI： 10.11316/jpsgaiyo.70.1.0_1543 　

  60. 19pCF-4 Terahertz-pulse-driven and photoinduced insulator-metal transitions in halogen-brideged Pd-chain compounds

    Ono T., Okamoto H., Terashige T., Miyamoto T., Hamaguchi T., Yada H., Kida N., Takaishi S., Kumagai S., Yamashita M.

    Meeting Abstracts of the Physical Society of Japan　70　1366-1366　2015

    Publisher: The Physical Society of Japan

    DOI： 10.11316/jpsgaiyo.70.2.0_1366 　

  61. 17pAF-6 Control of electronic phases by pressure in quasi-one-dimensional bromo-bridged Pd compounds

    Ito H., Kaneko T., Tanaka H., Kuroda S., Kumagai S., Takaishi S., Yamashita M.

    Meeting Abstracts of the Physical Society of Japan　70　1576-1576　2015

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.70.2.0_1576 　

    ISSN： 2189-079X

  62. 21aCP-4 Excitation-photon-energy selectivity of photoconversions in halogen-bridged Pd-chain compounds : Mott insulator to metal or charge-density-wave state

    Matsuzaki H., Terashige T., Miyamoto T., Okamoto H., Kumagai S., Takaishi S., Yamashita M., Iwano K., Takahashi R., Wakabayashi Y.

    Meeting Abstracts of the Physical Society of Japan　70　1433-1433　2015

    Publisher: The Physical Society of Japan (JPS)

    DOI： 10.11316/jpsgaiyo.70.1.0_1433 　

    ISSN： 2189-079X

  63. Charge-bistable Pd(III)/Pd(II,IV) coordination polymers: phase transitions and their applications to optical properties Peer-reviewed

    Shohei Kumagai, Shinya Takaishi, Hiroaki Iguchi, Masahiro Yamashita

    DALTON TRANSACTIONS　44　(18)　8590-8599　2015

    DOI： 10.1039/c5dt00439j 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  64. Continuous Control of Optical Gaps in Quasi-One-Dimensional Bromide-Bridged Platinum Complexes by Utilizing Chemical Pressure Peer-reviewed

    Shohei Kumagai, Hiroaki Iguchi, Shinya Takaishi, Brian K. Breedlove, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto, Kenichi Kato, Masaki Takata

    INORGANIC CHEMISTRY　53　(21)　11764-11769　2014/11

    DOI： 10.1021/ic502071u 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  65. Bromide-bridged palladium(III) chain complexes showing charge bistability near room temperature Peer-reviewed

    Shohei Kumagai, Shinya Takaishi, Brian K. Breedlove, Hiroshi Okamoto, Hisaaki Tanaka, Shin-ichi Kuroda, Masahiro Yamashita

    CHEMICAL COMMUNICATIONS　50　(61)　8382-8384　2014/08

    DOI： 10.1039/c4cc02547d 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  66. Magnetic anisotropy in a spin 1/2 quasi-one-dimensional antiferromagnetic copper(II) complex CuCl2(pdz) with a staggered g-tensor Peer-reviewed

    Shinya Takaishi, Hiroshi Kitagawa, Hisaaki Tanaka, Shin-ichi Kuroda, Ryuichi Ikeda

    DALTON TRANSACTIONS　43　(30)　11529-11532　2014/08

    DOI： 10.1039/c4dt00809j 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  67. Excitation-Photon-Energy Selectivity of Photoconversions in Halogen-Bridged Pd-Chain Compounds: Mott Insulator to Metal or Charge-Density-Wave State Peer-reviewed

    H. Matsuzaki, M. Iwata, T. Miyamoto, T. Terashige, K. Iwano, S. Takaishi, M. Takamura, S. Kumagai, M. Yamashita, R. Takahashi, Y. Wakabayashi, H. Okamoto

    PHYSICAL REVIEW LETTERS　113　(9)　096403　2014/08

    DOI： 10.1103/PhysRevLett.113.096403 　

    ISSN： 0031-9007

    eISSN： 1079-7114

  68. Solid-State Electrochemistry of a Semiconducting MMX-Type Diplatinum Iodide Chain Complex Peer-reviewed

    Hiroaki Iguchi, Ayman Nafady, Shinya Takaishi, Masahiro Yamashita, Alan M. Bond

    INORGANIC CHEMISTRY　53　(8)　4022-4028　2014/04

    DOI： 10.1021/ic402980t 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  69. Fabrication of one-dimensional grating structure on organic single-crystal surface Peer-reviewed

    Kenichi Maruyama, Jinpeng Li, Wataru Takahashi, Shu Hotta, Shinya Takaishi, Masahiro Yamashita, Taishi Takenobu

    JAPANESE JOURNAL OF APPLIED PHYSICS　53　(2)　02BC19　2014/02

    DOI： 10.7567/JJAP.53.02BC19 　

    ISSN： 0021-4922

    eISSN： 1347-4065

  70. Recent Progress in MMX-Chain Complexes: Unique Electronic States and Characteristics Developed by Introducing Binary Countercations Peer-reviewed

    Hiroaki Iguchi, Shinya Takaishi, Masahiro Yamashita

    CHEMISTRY LETTERS　43　(1)　69-79　2014/01

    DOI： 10.1246/cl.130961 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  71. Predominance of covalency in water-vapor-responsive MMX-type chain complexes revealed by I-129 Mossbauer spectroscopy Peer-reviewed

    Hiroaki Iguchi, Shinji Kitao, Makoto Seto, Shinya Takaishi, Masahiro Yamashita

    DALTON TRANSACTIONS　43　(23)　8767-8773　2014

    DOI： 10.1039/c4dt00627e 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  72. Negative Differential Resistance in MX- and MMX-Type Iodide-Bridged Platinum Complexes Peer-reviewed

    Hiroaki Iguchi, Shinya Takaishi, Deli Jiang, Jimin Xie, Masahiro Yamashita, Atsuko Uchida, Hitoshi Kawaji

    INORGANIC CHEMISTRY　52　(24)　13812-13814　2013/12

    DOI： 10.1021/ic402277x 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  73. Coordination mode-tuned stacking motif in alkali metal salts of Ni(pdt)(2) complexes (pdt=2,3-pyrazinedithiol) and its physical properties Peer-reviewed

    Shinya Takaishi, Mami Hada, Nozomi Ishihara, Brian K. Breedlove, Keiichi Katoh, Masahiro Yamashita

    POLYHEDRON　52　333-338　2013/03

    DOI： 10.1016/j.poly.2012.09.014 　

    ISSN： 0277-5387

  74. Coordination-mode-tuned stacking motif and physical properties in A[Ni(pdt)2] (A = Na and K; pdt = 2,3-pyrazinedithiol) Peer-reviewed

    Shinya Takaishi, Mari Hada, Nozomi Ishihara, Brian K. Breedlove, Keiichi Katoh, Masahiro Yamashita

    Polyhedron　2013

  75. Smallest optical gap for quasi-one-dimensional iodo-bridged platinum compounds Peer-reviewed

    Minseob Shin, Shinya Takaishi, Shohei Kumagai, Yutaro Ueda, Brian K. Breedlove, Hiroyuki Matsuzaki, Hiroshi Okamoto, Yusuke Wakabayashi, Masahiro Yamashita

    DALTON TRANSACTIONS　42　(18)　6277-6280　2013

    DOI： 10.1039/c3dt32890b 　

    ISSN： 1477-9226

  76. Solvent-assisted linker exchange (SALE) and post-assembly metallation in porphyrinic metal-organic framework materials Peer-reviewed

    Shinya Takaishi, Erica J. DeMarco, Michael J. Pellin, Omar K. Farha, Joseph T. Hupp

    CHEMICAL SCIENCE　4　(4)　1509-1513　2013

    DOI： 10.1039/c2sc21516k 　

    ISSN： 2041-6520

  77. Controlling the Electronic States and Physical Properties of MMX-Type Diplatinum-Iodide Chain Complexes via Binary Countercations Peer-reviewed

    Hiroaki Iguchi, Shinya Takaishi, Brian K. Breedlove, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto

    INORGANIC CHEMISTRY　51　(18)　9967-9977　2012/09

    DOI： 10.1021/ic301469u 　

    ISSN： 0020-1669

  78. Temperature- and Pressure-Induced Charge-Density-Wave to Mott-Hubbard Phase Transitions in Quasi-One-Dimensional Bromine-Bridged Pd Compounds Peer-reviewed

    Hiroyuki Matsuzaki, Shinya Takaishi, Mitsuhito Takamura, Shohei Kumagai, Masahiro Yamashita, Hiroshi Okamoto

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN　81　(7)　074705　2012/07

    DOI： 10.1143/JPSJ.81.074705 　

    ISSN： 0031-9015

  79. Electron spin resonance observation of dehydration-induced spin excitations in quasi-one-dimensional iodo-bridged diplatinum complexes Peer-reviewed

    Hisaaki Tanaka, Shin-ichi Kuroda, Hiroaki Iguchi, Shinya Takaishi, Masahiro Yamashita

    PHYSICAL REVIEW B　85　(7)　073104　2012/02

    DOI： 10.1103/PhysRevB.85.073104 　

    ISSN： 1098-0121

  80. Exploration of Boundary between Charge-Density-Wave and Mott-Hubbard States in Quasi-One-Dimensional Halogen-Bridged Metal Complexes Invited Peer-reviewed

    Shinya Takaishi

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　85　(2)　169-180　2012/02

    DOI： 10.1246/bcsj.20110199 　

    ISSN： 0009-2673

    eISSN： 1348-0634

  81. Novel Countercation in MMX-Type Mixed-Valence Chain Compound: Coexistence of Neutral and Protonated Amino Substituents Peer-reviewed

    Hiroaki Iguchi, Deli Jiang, Jimin Xie, Shinya Takaishi, Masahiro Yamashita

    POLYMERS　3　(4)　1652-1661　2011/12

    DOI： 10.3390/polym3041652 　

    ISSN： 2073-4360

  82. Paramagnetic-Diamagnetic Phase Transition Accompanied by Coordination Bond Formation-Dissociation in the Dithiolate Complex Na[Ni(pdt)(2)] center dot 2H(2)O Peer-reviewed

    Shinya Takaishi, Nozomi Ishihara, Kazuya Kubo, Keiichi Katoh, Brian K. Breedlove, Hitoshi Miyasaka, Masahiro Yamashita

    INORGANIC CHEMISTRY　50　(14)　6405-6407　2011/07

    DOI： 10.1021/ic2003172 　

    ISSN： 0020-1669

  83. Structural Design of Easy-Axis Magnetic Anisotropy and Determination of Anisotropic Parameters of Ln(III)-Cu-II Single-Molecule Magnets Peer-reviewed

    Takashi Kajiwara, Motohiro Nakano, Kohei Takahashi, Shinya Takaishi, Masahiro Yamashita

    CHEMISTRY-A EUROPEAN JOURNAL　17　(1)　196-205　2011

    DOI： 10.1002/chem.201002434 　

    ISSN： 0947-6539

  84. Real time and space observation of domain wall migration in a MX-chain complex with a quasi-2D CDW state by using STM Invited Peer-reviewed

    Shinya Takaishi, Hashen Wu, Takashi Kajiwara, Brian K. Breedlove, Hitoshi Miyasaka, Masahiro Yamashita

    DALTON TRANSACTIONS　40　(10)　2160-2162　2011

    DOI： 10.1039/c0dt01051k 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  85. 電荷双安定性に由来する擬一次元ハロゲン架橋金属錯体の動的挙動創出と可視化 Invited Peer-reviewed

    Shinya Takaishi

    Bull. Jpn. Soc. Coord. Chem.　57　36-44　2011

    Publisher: Japan Society of Coordination Chemistry

    DOI： 10.4019/bjscc.57.36 　

    ISSN： 1882-6954

    More details Close

    Metal complexes have originally many kinds of bistability owing to charge, spin, lattice etc. Recently, there has been much effort for controlling the macroscopic properties by the molecular bistability through cooperative phenomena. In the one-dimensional systems, especially, dynamics can be expected owing to the bistability of molecules because cooperativity is not so strong comparing to three-dimensional systems. We have studied on the charge dynamics in quasi-one-dimensional halogen-bridged metal complexes by using charge bistability of metal ions. In this review, a method for creating the charge bistability by reducing band gap energy and new method for detecting such a charge bistability by using scanning tunneling microscopy (STM) has been reported.

  86. Enhancement of luminescence intensity in TMPY/perylene co-single crystals Peer-reviewed

    Jinpeng Li, Shinya Takaishi, Naohiro Fujinuma, Katsutoshi Endo, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto, Kosuke Sawabe, Taishi Takenobu, Yoshihiro Iwasa

    JOURNAL OF MATERIALS CHEMISTRY　21　(44)　17662-17666　2011

    DOI： 10.1039/c1jm12977e 　

    ISSN： 0959-9428

  87. Single-Chain magnets constructed by using the strict orthogonality of easy-planes: Use of structural flexibility to control the magnetic properties

    Takashi Kajiwara, Takashi Kajiwara, Hiroki Tanaka, Motohiro Nakano, Shinya Takaishi, Yasuhiro Nakazawa, Masahiro Yamashita

    Inorganic Chemistry　49　8358-8370　2010/09/20

    DOI： 10.1021/ic100843k 　

    ISSN： 0020-1669

  88. Reversible magnetism between an antiferromagnet and a ferromagnet related to solvation/desolvation in a robust layered [Ru2]2TCNQ charge-transfer system

    Natsuko Motokawa, Satoshi Matsunaga, Satoshi Matsunaga, Shinya Takaishi, Hitoshi Miyasaka, Masahiro Yamashita, Kim R. Dunbar

    Journal of the American Chemical Society　132　(34)　11943-11951　2010/09/01

    DOI： 10.1021/ja102412g 　

    ISSN： 0002-7863

  89. Low-temperature scanning tunneling microscopy investigation of tris(phthalocyaninato)yttrium triple-decker molecules deposited on Au(111)

    Hironari Isshiki, Hironari Isshiki, Jie Liu, Jie Liu, Keiichi Katoh, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Shinya Takaishi, Tadahiro Komeda, Tadahiro Komeda, Tadahiro Komeda

    Japanese Journal of Applied Physics　49　(8)　08LB11-08LB11-4　2010/08/01

    Publisher: The Japan Society of Applied Physics

    DOI： 10.1143/JJAP.49.08LB11 　

    ISSN： 0021-4922

  90. Scanning tunneling microscopy investigation of Tris(phthalocyaninato) yttrium triple-decker molecules deposited on Au(111)

    Hironari Isshiki, Hironari Isshiki, Jie Liu, Jie Liu, Keiichi Katoh, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Shinya Takaishi, Tadahiro Komeda, Tadahiro Komeda

    Journal of Physical Chemistry C　114　(28)　12202-12206　2010/07/22

    DOI： 10.1021/jp101349v 　

    ISSN： 1932-7447

  91. Stabilization of Pd(iii) states in nano-wire coordination complexes

    Masahiro Yamashita, Shinya Takaishi

    Chemical Communications　46　4438-4448　2010/07/07

    DOI： 10.1039/c002097d 　

    ISSN： 1359-7345

  92. Structural study of electronic states in quasi-one-dimensional halogen-bridged mixed-metal complexes [Ni<inf>1-x</inf>Pd<inf>x</inf>(chxn) <inf>2</inf>Br]Br<inf>2</inf>

    Shinya Takaishi, Hashen Wu, Jimin Xie, Takashi Kajiwara, Brian K. Breedlove, Hitoshi Miyasaka, Masahiro Yamashita

    Inorganic Chemistry　49　(8)　3694-3696　2010/04/19

    DOI： 10.1021/ic1001368 　

    ISSN： 0020-1669

  93. Water-vapor-induced reversible switching of electronic states in an MMX-type chain complex with retention of single crystallinity

    Hiroaki Iguchi, Shinya Takaishi, Hitoshi Miyasaka, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroyuki Matsuzaki, Hiroshi Okamoto, Hiroshi Okamoto, Hisaaki Tanaka, Shin Ichi Kuroda

    Angewandte Chemie - International Edition　49　(3)　552-555　2010/01/12

    DOI： 10.1002/anie.200905608 　

    ISSN： 1433-7851

    eISSN： 1521-3773

  94. Electroconductive Porous Coordination Polymer Cu[Cu(pdt)(2)] Composed of Donor and Acceptor Building Units Peer-reviewed

    Shinya Takaishi, Miyuki Hosoda, Takashi Kajiwara, Hitoshi Miyasaka, Masahiro Yamashita, Yasuyuki Nakanishi, Yasutaka Kitagawa, Kizashi Yamaguchi, Atsushi Kobayashi, Hiroshi Kitagawa

    INORGANIC CHEMISTRY　48　(19)　9048-9050　2009/10

    DOI： 10.1021/ic802117q 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  95. A low-temperature scanning tunneling microscope investigation of a nonplanar dysprosium-phthalocyanine adsorption on Au(111)

    Yan Feng Zhang, Hironari Isshiki, Hironari Isshiki, Keiichi Katoh, Yusuke Yoshida, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Takashi Kajiwara, Shinya Takaishi, Tadahiro Komeda, Tadahiro Komeda

    Journal of Physical Chemistry C　113　(32)　14407-14410　2009/08/13

    DOI： 10.1021/jp9045935 　

    ISSN： 1932-7447

  96. Effect of an In-Plane Ligand on the Electronic Structures of Bromo-Bridged Nano-Wire Ni-Pd Mixed-Metal Complexes, [Ni1-xPdx(bn)(2)Br]Br-2 (bn=2S,3S-Diaminobutane) Peer-reviewed

    Mari Sasaki, Hashen Wu, Daisuke Kawakami, Shinya Takaishi, Takashi Kajiwara, Hitoshi Miyasaka, Brian K. Breedlove, Masahiro Yamashita, Hideo Kishida, Hiroyuki Matsuzaki, Hiroshi Okamoto, Hisaaki Tanaka, Shinichi Kuroda

    INORGANIC CHEMISTRY　48　(15)　7446-7451　2009/08

    DOI： 10.1021/ic901067z 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  97. Direct observation of lanthanide(III)-phthalocyanine molecules on Au(111) by using scanning tunneling microscopy and scanning tunneling spectroscopy and thin-film field-effect transistor properties of Tb(III)- and Dy(III)-phthalocyanine molecules Peer-reviewed

    Keiichi Katoh, Yusuke Yoshida, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Takashi Kajiwara, Shinya Takaishi, Naoto Ishikawa, Hironari Isshiki, Feng Zhang Yan, Tadahiro Komeda, Masakazu Yamagishi, Jun Takeya

    Journal of the American Chemical Society　131　(29)　9967-9976　2009/07/29

    DOI： 10.1021/ja902349t 　

    ISSN： 0002-7863

  98. Current oscillation originating from negative differential resistance in one-dimensional halogen-bridged nickel compounds Peer-reviewed

    Hideo Kishida, Takafumi Ito, Arao Nakamura, Shinya Takaishi, Masahiro Yamashita

    JOURNAL OF APPLIED PHYSICS　106　(1)　7446-7451　2009/07

    DOI： 10.1063/1.3157211 　

    ISSN： 0021-8979

    eISSN： 1089-7550

  99. Low-Temperature Scanning Tunneling Microscopy Investigation of Bis(phthalocyaninato)yttrium Growth on Au(111): From Individual Molecules to Two-Dimensional Domains Peer-reviewed

    Yan Feng Zhang, Hironari Isshiki, Keiichi Katoh, Yusuke Yoshida, Masahiro Yamashita, Hitoshi Miyasaka, Brian K. Breedlove, Takashi Kajiwara, Shinya Takaishi, Tadahiro Komeda

    JOURNAL OF PHYSICAL CHEMISTRY C　113　(22)　9826-9830　2009/06

    DOI： 10.1021/jp902410q 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  100. Coordination enhancement of single-molecule magnet behavior of Tb(III)-Cu(II) dinuclear systems Peer-reviewed

    Takashi Kajiwara, Kohei Takahashi, Tomonari Hiraizumi, Shinya Takaishi, Masahiro Yamashita

    POLYHEDRON　28　(9-10)　1860-1863　2009/06

    DOI： 10.1016/j.poly.2009.02.010 　

    ISSN： 0277-5387

  101. Direct Synthesis and Crystal Structure of Dehydrated State in Vapochromic MMX-type Quasi-One-Dimensional Iodide-Bridged Platinum Complexes Peer-reviewed

    Hiroaki Iguchi, Shinya Takaishi, Takashi Kajiwara, Hitoshi Miyasaka, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto

    JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS　19　(1)　85-90　2009/03

    DOI： 10.1007/s10904-008-9242-8 　

    ISSN： 1574-1443

    eISSN： 1574-1451

  102. Ultrafast photoinduced transitions in charge density wave, Mott insulator, and metallic phases of an iodine-bridged platinum compound Peer-reviewed

    K. Kimura, H. Matsuzaki, S. Takaishi, M. Yamashita, H. Okamoto

    PHYSICAL REVIEW B　79　(7)　075116　2009/02

    DOI： 10.1103/PhysRevB.79.075116 　

    ISSN： 1098-0121

  103. Structural correlations between the crystal field and magnetic anisotropy of Ln-Cu single-molecule magnets Peer-reviewed

    Takashi Kajiwara, Kohei Takahashi, Tomonari Hiraizumi, Shinya Takaishi, Masahiro Yamashita

    CRYSTENGCOMM　11　(10)　2110-2116　2009

    DOI： 10.1039/b906182g 　

    ISSN： 1466-8033

  104. Ultrafast optical responses in one-dimensional Mott insulators of halogen-bridged Ni compounds Peer-reviewed

    S. Tao, T. Miyagoe, H. Matsuzaki, H. Ohtsu, M. Hasegawa, S. Takaishi, M. Yamashita, H. Okamoto

    LXIII YAMADA CONFERENCE ON PHOTO-INDUCED PHASE TRANSITION AND COOPERATIVE PHENOMENA (PIPT3)　148　012011　2009

    DOI： 10.1088/1742-6596/148/1/012011 　

    ISSN： 1742-6588

  105. Observation of the Properties of a Single Unit of a Limited CDW Structure in a Pt-II/Pt-IV Host-Guest Binary System Based on a Square-Shaped Complex Peer-reviewed

    Eri Hirahara, Shinya Takaishi, Masahiro Yamashita

    CHEMISTRY-AN ASIAN JOURNAL　4　(9)　1442-1450　2009

    DOI： 10.1002/asia.200900114 　

    ISSN： 1861-4728

    eISSN： 1861-471X

  106. Mixed charge-ordering state of MMX-type quasi-one-dimensional iodide-bridged platinum complexes with binary countercations Peer-reviewed

    Hiroaki Iguchi, Shinya Takaishi, Takashi Kajiwara, Hitoshi Miyasaka, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto

    Journal of the American Chemical Society　130　(52)　17668-17669　2008/12/31

    DOI： 10.1021/ja807901p 　

    ISSN： 0002-7863

  107. Highly Luminescent Superparamagnetic Diterbium(III) Complex Based on the Bifunctionality of p-tert-Butylsulfonylcalix[4]arene Peer-reviewed

    Takashi Kajiwara, Miki Hasegawa, Ayumi Ishii, Kensuke Katagiri, Munkhtsetseg Baatar, Shinya Takaishi, Nobuhiko Iki, Masahiro Yamashita

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY　36　(36)　5565-5568　2008/12

    DOI： 10.1002/ejic.200800706 　

    ISSN： 1434-1948

  108. Hybridized complexes of [Mn-2(III)] single-molecule magnets and Ni dithiolate complexes Peer-reviewed

    Hiroki Hiraga, Hitoshi Miyasaka, Shinya Takaishi, Takashi Kajiwara, Masahiro Yamashita

    INORGANICA CHIMICA ACTA　361　(14-15)　3863-3872　2008/10

    DOI： 10.1016/j.ica.2008.02.070 　

    ISSN： 0020-1693

    eISSN： 1873-3255

  109. Coordination-tuned single-molecule-magnet behavior of Tb-III-Cu-II dinuclear systems Peer-reviewed

    Takashi Kajiwara, Motohiro Nakano, Shinya Takaishi, Masahiro Yamashita

    INORGANIC CHEMISTRY　47　(19)　8604-8606　2008/10

    DOI： 10.1021/ic8013656 　

    ISSN： 0020-1669

  110. Charge-density-wave to Mott-Hubbard phase transition in quasi-one-dimensional bromo-bridged Pd compounds Peer-reviewed

    Shinya Takaishi, Mitsuhito Takamura, Takashi Kajiwara, Hitoshi Miyasaka, Masahiro Yamashita, Muneaki Lwata, Hiroyuki Matsuzaki, Hiroshi Okamoto, Hisaaki Tanaka, Shin-ichi Kuroda, Hiroyuki Nishikawa, Hiroki Oshio, Kenichi Kato, Masaki Takata

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　130　(36)　12080-12084　2008/09

    DOI： 10.1021/ja8032026 　

    ISSN： 0002-7863

  111. Three-dimensionally ordered CDW state in quasi-one-dimensional iodo-bridged dinuclear platinum mixed-valence compounds, A(4)[Pt2I(POP)(4)]center dot nH(2)O (A = aromatic ammonium cations) Peer-reviewed

    Satoshi Matsunaga, Kouichi Takizawa, Daisuke Kawakami, Hiroaki Iguchi, Shinya Takaishi, Takashi Kajiwara, Hitoshi Miyasaka, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY　2008　(21)　3269-3273　2008/07

    DOI： 10.1002/ejic.200701276 　

    ISSN： 1434-1948

  112. Ultrafast dynamical study of self-trapped excitons in ladder type of halogen-bridged Pt complexes Peer-reviewed

    Tohru Suemoto, Youtarou Takahashi, Keizo Yasukawa, Daisuke Kawakami, Shinya Takaishi, Masahiro Yamashita, Atsushi Kobayashi, Hiroshi Kitagawa

    JOURNAL OF LUMINESCENCE　128　(5-6)　1081-1083　2008/05

    DOI： 10.1016/j.jlumin.2007.11.004 　

    ISSN： 0022-2313

  113. Electronic structure of Co-III doped bromo-bridged Ni complexes, [Ni1-xCox(chxn)(2)Br]Br-2 Peer-reviewed

    Jimin Xie, Hashen Wu, Daisuke Kawakami, Hiroaki Iguchi, Shinya Takaishi, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto, Hisaaki Tanaka, Shin-Chi Kuroda

    INORGANIC CHEMISTRY　47　(6)　1949-1952　2008/03

    DOI： 10.1021/ic7012232 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  114. Ultrafast optical responses in a one-dimensional Mott insulator of a Br-bridged Ni compound Peer-reviewed

    Tatsuzo Miyagoe, Shoichi Tao, Atsushi Maeda, Hiroyuki Matsuzaki, Hideki Ohtsu, Miki Hasegawa, Shinya Takaishi, Masahiro Yamashita, Hiroshi Okamoto

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN　77　(2)　023711　2008/02

    DOI： 10.1143/JPSJ.77.023711 　

    ISSN： 0031-9015

  115. One-dimensional bromo-bridged Ni-III complexes [Ni(S,S-bn)(2)Br]Br-2 (S,S-bn=2S,3S-diaminobutane): Synthesis, physical properties, and electrostatic carrier doping Peer-reviewed

    Shinya Takaishi, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto, Hisaaki Tanaka, Shin-ichi Kuroda, Atsushi Goto, Tadashi Shimizu, Taishi Takenobu, Yoshihiro Iwasa

    CHEMISTRY-A EUROPEAN JOURNAL　14　(2)　472-477　2008

    DOI： 10.1002/chem.200701299 　

    ISSN： 0947-6539

  116. Hybrid molecular material exhibiting single-molecule magnet behavior and molecular conductivity Peer-reviewed

    Hiraga Hiroki, Miyasaka Hitoshi, Nakata Kazuya, Kajiwara Takashi, Takaishi Shinya, Oshima Yugo, Nojiri Hiroyuki, Yamashita Masahiro

    INORGANIC CHEMISTRY　46　(23)　9661-9671　2007/11/12

    DOI： 10.1021/ic700727n 　

    ISSN： 0020-1669

  117. Direct Observation of the Ground Spin Alignment of Fe(II)-Fe(III) Single-Chain magnet by Muon Spin Relaxation Peer-reviewed

    T. kajiwara, I. Watanabe, Y. Kaneko, S. Takaishi, N. Kojima, M. Yamashita

    J. Am. Chem. Soc.,　129　12360-12361　2007/09

    DOI： 10.1021/ja0741877 　

  118. Why Does the Disorder of R-pn and Rac-pn Ligands in the Quasi-One-Dimensional Bromo-Bridged Ni(III) Complexes [Ni(pn)2Br]Br2 Afford Similar STM Pattern Peer-reviewed

    H. Wu, M. Sasaki, D. Kawakami, J. Xie, S. Takaishi, T. Kajiwara, H. Miyasaka, M. Yamashita, H. Matsuzaki, H. Okamoto

    Inorg. Chem.,　46　7410-7417　2007/08

    DOI： 10.1021/ic700379m 　

  119. Metal-insulator transition of charge-transfer salts based on unsymmetrical donor DMET and metal halide anions (DMET)(4)(MCl4)(TCE)(2) (M = Mn, Co, Cu, Zn; TCE=1,1,2-trichloroethane) Peer-reviewed

    Hiroshi Ito, Daichi Suzuki, Harutaka Watanabe, Hisaaki Tanaka, Shin-ichi Kuroda, Masamichi Umemiya, Norihito Kobayashi, Makoto Goto, Ken-ichi Sugiura, Hitoshi Miyasaka, Shinya Takaishi, Takashi Kajiwara, Masahiro Yamashita, Eiji Ohmichi, Toshihito Osada

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　129　(27)　8510-8518　2007/07

    DOI： 10.1021/ja070672q 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  120. Time resolution of chirped lattice vibrations in a mixed-valence metal-halogen complex system

    Fumito Araoka, Akira Ozawa, Daisuke Kawakami, Shinya Takaishi, Masahiro Yamashita, Takayoshi Kobayashi, Takayoshi Kobayashi, Takayoshi Kobayashi, Takayoshi Kobayashi, Takayoshi Kobayashi

    Physical Review B - Condensed Matter and Materials Physics　75　2007/06/12

    DOI： 10.1103/PhysRevB.75.224304 　

    ISSN： 1098-0121

  121. Synthesis, Structure, and Magnetic Properties of a New Fe(II)-Fe(III) Alternating Single-Chain magnet Constructed With a Methyl-Substituted bpca Ligand Peer-reviewed

    H. Tanaka, T. Kajiwara, Y. Kaneko, S. Takaishi, M. Yamashita

    Polyhedron　26　2105-2109　2007/06

    DOI： 10.1016/j.poly.2006.10.015 　

  122. Tuning of Electronic Structures of Quasi-One-Dimensional Bromo-Bridged Pd(II)-Pd(IV) Mixed-Valence Complexes by substituting Counter Anions Peer-reviewed

    H. Arakawa, D. Kawakami, S. Takaishi, T. Kajiwara, H. Miyasaka, S. Sugiura, M. Yamashita, H. Kishida, H. Okamoto

    Bull. Chem. Soc. Jpn.,　80　(1)　189-191　2007/05

    DOI： 10.1246/bcsj.80.189 　

    ISSN： 0009-2673

    eISSN： 1348-0634

  123. 19pRG-3 アルキル基を導入したNX型一次元Pd錯体におけるCDW-MH相転移(金属架橋・結晶成長・高分子,領域7,分子性固体・有機導体)

    Takaishi,Shinya, Takamura,Mitsuhito, Yamashita,Masahiro, Matsuzaki,Hiroyuki, Okamoto,Hiroshi, Nishikawa,Hiroyuki, Oshio,Hiroki

    Meeting abstracts of the Physical Society of Japan　62　(1)　831　2007/02

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  124. Ultrafast optical switching by using nanocrystals of a halogen-bridged nickel-chain compound dispersed in an optical polymer Peer-reviewed

    Tao S, Miyagoe T, Maeda A, Matsuzaki H, Ohtsu H, Hasegawa M, Takaishi S, Yamashita M, Okamoto H

    Advanced Materials　19　(18)　2707-2710　2007

    DOI： 10.1002/adma.200602811 　

  125. Remarkable functions of long-chain alkyl groups in halogen-bridged nickel(III) nanowire complexes Peer-reviewed

    Ohtsu H, Takaishi S, Imamura K, Ishii A, Tanaka K, Hasegawa M, Yamashita M

    European Journal of Inorganic Chemistry　(28)　4425-4428　2007

    DOI： 10.1002/ejic.200700768 　

  126. Surface modifications using thiol self-assembled monolayers on Au electrodes in organic field effect transistors

    Nobuya Hiroshiba, Ryotaro Kumashiro, Naoya Komatsu, Yusuke Suto, Hisao Ishii, Shinya Takaishi, Masahiro Yamashita, Kazuhiro Tsukagoshi, Katsumi Tanigaki

    Materials Research Society Symposium Proceedings　965　264-269　2006/12

    ISSN： 0272-9172

  127. Metal-metal bonded diruthenium unit axial-capped by di-tert-butylphenolate: [Ru<inf>2</inf>(O<inf>2</inf>CCH<inf>3</inf>)<inf>2</inf>(t-Busal-R′py) <inf>2</inf>]- (t-Busal-R′py2- = N-(R′-2-pyridyl)-2-oxido-3,5-di-tert-butylbenzylamin

    Hitoshi Miyasaka, Toru Izawa, Shinya Takaishi, Kunihisa Sugimoto, Ken Ichi Sugiura, Masahiro Yamashita

    Bulletin of the Chemical Society of Japan　79　612-620　2006/11/10

    DOI： 10.1246/bcsj.79.612 　

    ISSN： 0009-2673

  128. Self-Assembled Monolayers Modification on Electrodes of Organic Thin-Film Transistors Peer-reviewed

    N. Hiroshiba, R. Kumashiro, H. Ishii, M. Yamashita, S. Takaishi, K. Tukagoshi, M. Okinaka, K. Tanigaki

    Multifunctional Conducting Molecular Materials, The Royal Society of Chemistry, UK　282-285　2006/10

  129. Dodeca-Lanthanide Wheel Supported by p-tert-Butylsulfonylcalix[4]arene Peer-reviewed

    kashi Kajiwara, Kensuke Katagiri, Shinya Takaishi, Masahiro Yamashita, Nobuhiko Iki

    Chem. Asian J.　1　(3)　349-351　2006/09/18

    DOI： 10.1002/asia.200600057 　

  130. Versatile vapochromic behavior accompanied by a phase change between charge-polarization state and charge-density-wave state in a quasi-one-dimensional iodo-bridged dinuclear platinum mixed-valence compound, [{NH3(CH2)(5)NH3}(2)]-[Pt-2(pop)4I]center dot 4H(2)O Peer-reviewed

    Masahiro Yamashita, Kouichi Takizawa, Satoshi Matsunaga, Daisuke Kawakami, Hiroaki Iguchi, Shinya Takaishi, Takashi Kajiwara, Fumiyasu Iwahori, Tomohiko Ishii, Hitoshi Miyasaka, Ken-ichi Sugiura, Hiroyuki Matsuzaki, Hideo Kishida, Hiroshi Okamoto

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　79　(9)　1404-1406　2006/09

    DOI： 10.1246/besj.79.1404 　

    ISSN： 0009-2673

    eISSN： 1348-0634

  131. Tuning of electronic structures of quasi one-dimensional iodide-bridged dinuclear platinum mixed-valence complexes Peer-reviewed

    M. Yamashita, S. Takaishi, A. Kobayashi, H. Kitagawa, H. Matsuzaki, H. Okamoto

    Coordination Chemistry Reviews　250　(17-18)　2335-2346　2006/09

    DOI： 10.1016/j.ccr.2006.03.006 　

    ISSN： 0010-8545

  132. A binuclear Fe(III)Dy(III) single molecule magnet. Quantum effects and models Peer-reviewed

    Ferbinteanu, M, Kajiwara, T, Choi, KY, Nojiri, H, Nakamoto, A, Kojima, N, Cimpoesu, F, Fujimura, Y, Takaishi, S, Yamashita, M

    J. Am. Chem. Soc.　128　9008-9009　2006/07

    DOI： 10.1021/ja062399i 　

  133. Conformation-Controlled Luminescent Properties of Lanthanide Clusters Containing p-tert-Butylsulfonylcalix[4]arene Peer-reviewed

    Takashi Kajiwara, Kensuke Katagiri, Miki Hasegawa, Ayumi Ishii, Marilena Ferbinteanu, Shinya Takaishi, Tasuku Ito, Masahiro Yamashita, Nobuhiko Iki

    Inorg. Chem.　45　(13)　4880-4882　2006/06/26

    DOI： 10.1021/ic060397t 　

  134. Halogen-Bridged Two-Leg Ladder PtII-PtIV Mixed-Valence Complexes: Syntheses, Structures and Optical Peer-reviewed

    M. Yamashita, D. Kawakami, S. Matsunaga, S. Takaishi, T. Kajiwara, H. Miyasaka, K. Sugiura, H. Matsuzaki, H. Kishida, H. Okamoto, Y. Wakabayashi, H. Sawa

    Angew. Chem. Int. Ed.,　45　7214-7217　2006/04

  135. Highly-symmetrical tetra-nuclear cluster complexes supported by p-tert-butylsulfonylcalix[4]arene as a cluster-forming ligand Peer-reviewed

    T. Kajiwara, T. Kobashi, R. Shinagawa, T. Ito, S. Takaishi, M. Yamashita, N. Iki

    Eur. J. Inorg. Chem.　2006　1765-1770　2006/04

    DOI： 10.1002/ejic.200501086 　

  136. Halgen-Bridged Two-Leg Ladder PtII-PtIV Mixed-Valence Compounds Peer-reviewed

    D. Kawakami, M. Yamashita, S. Matsunaga, S. Takaishi, T. Kajiwara, H. Miyasaka, K.-i. Sugiura, H. Matsuzaki, H. Okamoto, Y. Wakabayashi, H. Sawa

    Angew. Chem. Int. Ed.,　2006/04

  137. Halogen-bridged Pt-II/Pt-IV mixed-valence ladder compounds Peer-reviewed

    Kawakami, D, Yamashita, M, Matsunaga, S, Takaishi, S, Kajiwara, T, Miyasaka, H, Sugiura, K, Matsuzaki, H, Okamoto, H, Wakabayashi, Y, Sawa, H

    Angewandte Chemie-International Edition　45　(43)　7214-7217　2006

    DOI： 10.1002/anie.200602987 　

  138. New Charge-Transfer Salts Based on Unsymmetrical Donor DMET and Metal Complex Anion: Peer-reviewed

    M. Umemiya, M. Goto, N. Kobayashi, S. Takaishi, T. Kajiwara, M. Yamashita, H. Miyasaka, K. Sugiura, H. Watanabe, D. Suzuki, H. Ito, S. Kuroda

    Chem. Lett.,　35　368-369　2006

    DOI： 10.1246/cl.2006.368 　

  139. Versatile Vapochromic Behavior Accompanied by Phase Change between Charge-Polarization State and Peer-reviewed

    M. Yamashita, K. Takizawa, S. Matsunaga, D. Kawakami, H. Iguchi, S. Takaishi, T.,Kajiwara, F. Iwahori, T. Ishii, H. Miyasaka, K. Sugiura, H. Matsuzaki, H. Kishida, H. Okamoto

    Bull. Chem. Soc. Jpn.,　79　1404-1406　2006

    DOI： 10.1246/bcsj.79.1404 　

  140. Tuning of Electronic Structures of Quasi-One-Dimensional Halogen-Bridged Ni-Pd Mixed-Metal Invited Peer-reviewed

    M. Yamashita, S. Takaishi

    Bull. Chem. Soc. Jpn., Accounts　79　1820-1833　2006

    DOI： 10.1246/bcsj.79.1820 　

  141. Dynamical valence fluctuation at the charge-density-wave phase boundary in iodide-bridged Pt compound [Pt(chxn)(2)I]I-2 Peer-reviewed

    Takaishi, S, Kawakami, D, Yamashita, M, Sasaki, M, Kajiwara, T, Miyasaka, H, Sugiura, K, Wakabayashi, Y, Sawa, H, Matsuzaki, H, Kishida, H, Okamoto, H, Watanabe, H, Tanaka, H, Marumoto, K, Ito, H, Kuroda, S

    Journal of the American Chemical Society　128　(19)　2006

    DOI： 10.1021/ja060193b 　

  142. Properties of chemically modified carbon nanotubes

    R. Kumashiro, H. Ohashi, T. Akasaka, Y. Maeda, S. Takaishi, M. Yamashita, S. Maruyama, T. Izumida, R. Hatakeyama, K. Tanigaki, K. Tanigaki

    Materials Research Society Symposium Proceedings　901　505-510　2005/12/01

    ISSN： 0272-9172

  143. Direct observation of the disorder of the methyl group of (R)-1,2-diaminopropane ligand in the quasi-1D bromo-bridged Ni(III) complex by STM

    Mari Sasaki, Shinya Takaishi, Hitoshi Miyasaka, Ken Ichi Sugiura, Masahiro Yamashita

    Journal of the American Chemical Society　127　(43)　14958-14959　2005/11/02

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/ja053715g 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  144. A single-chain magnet formed by a twisted arrangement of ions with easy-plane magnetic anisotropy Peer-reviewed

    Kajiwara T, Nakano M, Kaneko Y, Takaishi S, Ito T, Yamashita M, Igashira-Kamiyama A, Nojiri H, Ono Y, Kojima N

    J. Am. Chem. Soc.　127　(29)　10150-10151　2005/07/27

    DOI： 10.1021/ja052653r 　

  145. Vapochromic behavior accompanied by phase transition between charge-polarization and charge-density-wave states in a quasi-one-dimensional iodine-bridged dinuclear platinum compound Peer-reviewed

    H Mastuzaki, H Kishida, H Okamoto, K Takizawa, S Matsunaga, S Takaishi, MA Hitoshi, K Sugiura, M Yamashita

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　44　(21)　3240-3243　2005

    DOI： 10.1002/anie.200500091 　

    ISSN： 1433-7851

  146. New organic conductor (DMET)<inf>2</inf>CuCl<inf>2</inf>: Synthesis, structure and physical properties

    M. Umemiya, K. Goto, S. Takaishi, H. Miyasaka, K. I. Sugiura, M. Yamashita, H. Nishikawa, K. Kikuchi, I. Ikemoto, Y. Yokochi, H. Ito, S. Kuroda

    Journal De Physique. IV : JP　114　589-590　2004/12/01

    Publisher: EDP Sciences

    DOI： 10.1051/jp4:2004114140 　

    ISSN： 1155-4339

  147. Visualization of Local Valence Structures in Quasi-One-Dimensional Halogen-Bridged Complexes [Ni1-xPdx(chxn)2Br]Br2 by STM Peer-reviewed

    Shinya Takaishi, Hitoshi Miyasaka, Ken-ichi Sugiura, Masahiro Yamashita, Hiroyuki Matsuzaki, Hideo Kishida, Hiroshi Okamoto, Hisaaki Tanaka, Kazuhiro Marumoto, Hiroshi Ito, Shin-ichi Kuroda, Tomohide Takami

    Angew. Chem. Int. Ed. Engl.　43　(24)　3171-3175　2004/06

    DOI： 10.1002/anie.200453905 　

    ISSN： 0570-0833

  148. The NOR observation of Spin-Peierls transition in an antiferromagnetic MX-chain complex [NiBr(chxn) (2)]Br-2 Peer-reviewed

    S Takaishi, Y Tobu, H Kitagawa, A Goto, T Shimizu, T Okubo, T Mitani, R Ikeda

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　126　(6)　1614-1615　2004/02

    DOI： 10.1021/ja039857x 　

    ISSN： 0002-7863

  149. Tuning of Electronic Structures of Quasi-One-Dimensional Iodo-Bridged Dinuclear Platinum Invited Peer-reviewed

    M. Yamashita, S. Takaishi, A. Kobayashi, H. Kitagawa, H. Matsuzaki, H. Okamoto

    Coord. Chem. Rev　250　2335-2345　2004

  150. Visualization of local valence structures in quasi-one-dimensional halogen-bridged complexes [Ni1-xPdx(chxn)(2)Br]Br-2 by STM Peer-reviewed

    S Takaishi, H Miyasaka, K Sugiura, M Yamashita, H Matsuzaki, H Kishida, H Okamoto, H Tanaka, K Marumoto, H Ito, S Kuroda, T Takami

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　43　(24)　3171-3175　2004

    DOI： 10.1002/anie.200453905 　

    ISSN： 1433-7851

    eISSN： 1521-3773

  151. ([Pt(en)(2)] [PtX2(en)(2)]}(3)][(MX5)X-3)(2)]center dot 12 H2O: Quasi-one-dimensional halogen-bridged Pt-II-Pt-IV mixed-valence compounds with magnetic counteranions Peer-reviewed

    M Yamashita, D Kawakami, S Matsunaga, Y Nakayama, M Sasaki, S Takaishi, F Iwahori, H Miyasaka, K Sugiura, Y Wada, H Miyamae, H Matsuzaki, H Okamoto, H Tanaka, K Marumoto, S Kuroda

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　43　(36)　4763-4767　2004

    DOI： 10.1002/anie.200460580 　

    ISSN： 1433-7851

    eISSN： 1521-3773

  152. Carrier doping effect into quasi-one-dimensional bromo-bridged Ni(III) complexes with strong electron-correlation by Cu(II) ions, [Ni1-xCux(chxn)2Br2]Br2-x Peer-reviewed

    M. Yamashita, T. Ono, S. Matsunaga, M. Sasaki, S. Takaishi, F. Iwahori, H. Miyasaka, K. Sugiura, H. Kishida, H. Okamoto, H. Tanaka, Y. Hasegawa, K. Marumoto, H. Ito, S. Kuroda, N. Kimura

    Inorganic Chemistry　42　7692-7694　2003/12

  153. Relaxation process of CT exciton state in a one-dimensional MX-chain compound [NiBr(chxn)2]Br2 Peer-reviewed

    S. Takaishi, H. Kitagawa, R. Ikeda

    Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals　379　279-284　2002

    DOI： 10.1080/713738596 　

Show all ︎Show first 5

Misc. 73

  1. Recent progress on unusual halogen-bridged Pd(III) chain compounds realized by weak ligand field and triple hydrogen bond approaches

    Mohammad Rasel Mian, Masanori Wakizaka, Takefumi Yoshida, Hiroaki Iguchi, Shinya Takaishi, Masahiro Yamashita

    Coordination Chemistry Reviews　475　2023/01/15

    DOI： 10.1016/j.ccr.2022.214878 　

    ISSN： 0010-8545

  2. 一次元半導体のヘテロ接合に成功-原子サイズの半導体デバイスの実現

    脇坂聖憲, 脇坂聖憲, WU Hashen, 井口弘章, 井口弘章, 山下正廣, 高石慎也

    化学　77　(6)　2022

    ISSN： 0451-1964

  3. 水素錯体を利用した新規水素吸着材料の開発

    内田海路, 高石慎也, 岸本直樹, 野呂真一郎, 山下正廣, 山下正廣, 山下正廣

    錯体化学会討論会講演要旨集　69th　323　2019/09/02

  4. 水素錯体を利用した新しい水素吸着様式の開拓

    内田海路, 高石慎也, 岸本直樹, 野呂真一郎, 山下正廣, 山下正廣, 山下正廣

    分子科学討論会講演プログラム&amp;要旨(Web)　13th　ROMBUNNO.4P053 (WEB ONLY)　2019

  5. 安定な高伝導性ナノワイヤー金属錯体 ―多重水素結合によるPd(III)状態の安定化

    IGUCHI Hiroaki, MIAN Mohammad Rasel, TAKAISHI Shinya, YAMASHITA Masahiro

    Kagaku　73　(3)　19-22　2018/03

  6. One-Dimensional Ni(III) and Pd(III) Mott Insulators

    M. Yamashita, S. Takaishi

    Comprehensive Inorganic Chemistry II (Second Edition): From Elements to Applications　4　431-445　2013/08/01

    DOI： 10.1016/B978-0-08-097774-4.00424-1 　

  7. POP-type MMX-chain compounds with binary countercations and vapochromism

    Hiroaki Iguchi, Shinya Takaishi, Masahiro Yamashita

    Material Designs and New Physical Properties in MX- and MMX-Chain Compounds　9783709113172　207-230　2013/06/01

    DOI： 10.1007/978-3-7091-1317-2_10 　

  8. Ni(III) mott-hubbard compounds

    S. Takaishi, M. Yamashita

    Material Designs and New Physical Properties in MX- and MMX-Chain Compounds　9783709113172　31-37　2013/06/01

    DOI： 10.1007/978-3-7091-1317-2_3 　

  9. General introduction

    S. Takaishi, M. Yamashita

    Material Designs and New Physical Properties in MX- and MMX-Chain Compounds　9783709113172　1-6　2013/06/01

    DOI： 10.1007/978-3-7091-1317-2_1 　

  10. Pd(III) mott-hubbard compounds

    S. Takaishi, M. Yamashita

    Material Designs and New Physical Properties in MX- and MMX-Chain Compounds　9783709113172　39-54　2013/06/01

    DOI： 10.1007/978-3-7091-1317-2_4 　

  11. Material designs and new physical properties in MX-and MMX-Chain compounds

    Masahiro Yamashita, Hiroshi Okamoto, Hiroshi Okamoto, Hiroshi Okamoto, Hiroaki Iguchi, Kaoru Iwano, Hideo Kishida, Hiroyuki Matsuzaki, Hiroyuki Matsuzaki, Minoru Mitsumi, Arao Nakamura, Shinya Takaishi, Kenji Yonemitsu, Kenji Yonemitsu, Kenji Yonemitsu

    Material Designs and New Physical Properties in MX- and MMX-Chain Compounds　9783709113172　1-270　2012/06/01

    DOI： 10.1007/978-3-7091-1317-2 　

  12. 24pPSB-19 Pressure-induced phase transition in the one-dimensional bromine-bridged Pd compound which has a counter ion with long alkyl chain

    Matsuzaki H., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　67　(1)　794-794　2012/03/05

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  13. 結晶水の可逆的脱離・吸着能を有するMMX型擬一次元ヨウ素架橋白金錯体の電子状態

    井口弘章, 高石慎也, 宮坂等, 山下正廣, 田中久暁, 伊東裕, 黒田新一, 北尾真司, 瀬戸誠, 松崎弘幸, 岡本博

    日本化学会講演予稿集　91st　(2)　193　2011/03/11

    ISSN： 0285-7626

  14. 23pWX-6 Scanning Tunneling Microscopy Investigation of tris(phthalocyaninato)yttrium triple-decker molecules deposited on Au(111)

    Liu Jie, Isshiki Hironari, Katoh Keiichi, Yamashita Masahiro, Miyasaka Hitoshi, Breedlove Brian K., Takaishi Shinya, Komeda Tadahiro

    Meeting abstracts of the Physical Society of Japan　65　(2)　843-843　2010/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  15. 23pRB-5 Electrical conduction of halogen-bridged binuclear metal complex with binary counter-cation under pressure-H_2O desorption effect

    Ito H., Kanbe Y., Tanaka H., Kuroda S., Iguchi H., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　65　(2)　781-781　2010/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  16. 23pRB-4 Physical property and electronic state of molecular conductor based on naphthalenediimide derivative and quasi-one-dimensional Br-bridged lead complex

    Iguchi Hiroaki, Takaishi Shinya, Kubo Kazuya, Miyasaka Hitoshi, Yamashita Masahiro, Yamamoto Takashi, Tanaka Hisaaki, Kuroda Shin-ichi, Tajima Akiko, Kato Reizo

    Meeting abstracts of the Physical Society of Japan　65　(2)　213-213　2010/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  17. 23pRB-5 Electrical conduction of halogen-bridged binuclear metal complex with binary counter-cation under pressure : H_20 desorption effect

    Ito H., Kanbe Y., Tanaka H., Kuroda S., Iguchi H., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　65　(2)　214-214　2010/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  18. 21aGT-5 Femtosecond luminescence spectroscopy in ladder type chlorine-bridged Pt complexes

    Nakao H., Nakajima M., Kawakami D., Takaishi S., Yamashita M., Kitagawa H., Suemoto T.

    Meeting abstracts of the Physical Society of Japan　65　(1)　875-875　2010/03/01

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  19. 一次元電子系の化学の常識を打ち破れ--世界初 ナノワイヤーPd[3]モット絶縁体の合成

    山下 正廣, 高石 慎也

    化学　64　(9)　22-28　2009/09

    Publisher: 化学同人

    ISSN： 0451-1964

  20. 25pXA-10 Ultrafast dynamics of photoexcited state in MX-Ladder platinum complex

    Miura M., Fukatsu T., Kawakami Y., Iwai S., Sasaki T., Kawakami D., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　64　(2)　620-620　2009/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  21. 27aPS-90 Study of photoinduced Mott-Hubbard : charge density wave transition in iodine-bridged Pt complexes by 15 femtosecond pulse laser II

    Ota Y., Uemura H., Matsuzaki H., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　64　(2)　666-666　2009/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  22. 28pVD-7 Study of photoinduced Mott-Hubbard : charge density wave transition in iodine-bridged Pt complexes by 15 femtosecond pulse laser

    Ota Y., Uemura H., Matsuzaki H., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　64　(1)　734-734　2009/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  23. 27aYF-4 ESR observations of cation substitution effects in halogen-bridged binuclear metal complex

    Tanaka H., Kuroda S., Iguchi H., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　64　(1)　806-806　2009/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  24. 21aTC-2 ESR observations of the H_2O adsorption/desorption effects in halogen-bridged binuclear metal complex K_2[H_3NC_3H_6NH_3]Pt_2(pop)_4I・4H_2O

    Tanaka H., Takashima M., Kuroda S., Iguchi H., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　63　(2)　743-743　2008/08/25

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  25. 21pYD-5 Dynamics of photoinduced Mott-Hubbard-charge density wave transition in bromine-bridged Pd complexes and control of that phase transition

    Ota Y., Matsuzaki H., Takaishi S., Takamura M., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　63　(2)　644-644　2008/08/25

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  26. 21pYD-6 Photoinduced Mott-Hubbard insulator to CDW insulator transition and Mott-Hubbard insulator to metal transition in the 1D Br-bridged Pd compound

    Matsuzaki H., Ohota Y., Takaishi S., Takamura M., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　63　(2)　644-644　2008/08/25

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  27. One-dimensional halogen-bridged Ni-III compounds: Chemistry and physics in strongly correlated electron systems

    Shinya Takaishi, Masahiro Yamashita

    CHEMISTRY LETTERS　37　(4)　382-387　2008/04

    DOI： 10.1246/cl.2008.382 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  28. 自然界の乱れをSTMにより直接観測する -巨大三次非線形光学材料探索中のハプニング-

    Wu Hashen, 高石慎也, 山下正廣, 岸田英夫

    現代化学　2008/04

    Publisher: 東京化学同人

  29. 24aYH-10 The photoinduced phase transition in bromine-bridged Pd complexes showing thermally induced charge density wave-Mott-Hubbard phase transition

    Iwata M., Matsuzaki H., Takamura M., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　63　(1)　714-714　2008/02/29

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  30. 23aTF-9 Nonlinear conduction in Halogen-Bridged Nickel Compounds [Ni(chxn)_2Br]Br_2

    Ito T., Kishida H., Nakamura A., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　63　(1)　795-795　2008/02/29

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  31. 23aTF-5 ESR studies of the halogen-bridged binuclear metal complex with binary counteractions exhibiting alternate-charge-polarization state

    Tanaka H., Takashima M., Kuroda S., Iguchi H., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　63　(1)　795-795　2008/02/29

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  32. Solitons, Polarons and their Dynamics in Mixed-Valence Halogen-Bridged MX-Chains

    Shinya Takaishi, Masahiro Yamashita

    Phil. Trans. R. Soc. A　2008

    DOI： 10.1098/rsta.2007.2142 　

  33. 24aRC-5 Alkyl chain dependence of the electronic state and phase transition in the halogen-bridged Palladium complex Pd(en)_2][Pd(en)_2Br_2](C_n-Y)_4

    Tanaka H., Takashima M., Kuroda S., Takamura M., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　62　(2)　898-898　2007/08/21

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  34. 22aTK-5 Exploration of photoinduced phase transition in bromine-bridged Pd complexes showing the charge density wave-Mott-Hubbard phase transition.

    Iwata M., Matsuzaki H., Takamura M., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　62　(2)　740-740　2007/08/21

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  35. 18aZB-6 Photoinduced IR absorption of excitons and polarons in halogen-bridged Ni complexes

    Miyagoe T., Kobayashi K., Tao S., Matsuzaki H., Imamura K., Ohtsu H., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　62　(1)　697-697　2007/02/28

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  36. 20pRJ-5 Low-temperature electronic states of DMET salts containing Cr complexes

    Ito H., Watanabe H., Tanaka H., Kuroda S., Umemiya M., Takaishi S., Miyasaka H., Sugiura K.-i., Yamashita M., Tajima H.

    Meeting abstracts of the Physical Society of Japan　62　(1)　852-852　2007/02/28

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  37. 19pPSA-32 Charge density wave : Mott-Hubbard phase transition and ultrafast relaxation dynamics in halogen-bridged Pd complexes with alkyl chains

    Iwata M., Matsuzaki H., Imamura K., Takamura M., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　62　(1)　724-724　2007/02/28

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  38. 19pPSA-31 Optical switching based on two photon absorption in thin films of halogen-bridged Ni complexes

    Kobayashi K., Miyagoe T., Tao S., Matsuzaki H., Imamura K., Ohtsu H., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　62　(1)　724-724　2007/02/28

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  39. 19pRG-4 ESR studies of the electronic state and phase transition in the halogen-bridged Palladium complex [Pd(en)_2][Pd(en)_2Br_2](C_n-Y)_4 with the alkyl chain

    Tanaka H., Shuto A., Kuroda S., Takamura M., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　62　(1)　831-831　2007/02/28

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  40. 20pRJ-4 Anisotropic Electrical Transport Properties in (DMET)_4CuCl_4(TCE)_2

    Watanabe H., Suzuki D., Ito H., Tanaka H., Kuroda S., Umemiya M., Takaishi S., Miyasaka H., Sugiura K., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　62　(1)　851-851　2007/02/28

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  41. (DMET)4CuCl4(TCE)2表面の半導体的電気伝導

    伊東裕, 渡邊大貴, 田中久暁, 黒田新一, 梅宮将充, 高石慎也, 宮坂等, 杉浦健一, 山下正廣, 山下正廣, 田島裕之

    日本物理学会講演概要集　62　(2)　2007

    ISSN： 1342-8349

  42. 25aYF-4 Low-temperature electronic states of (DMET)_4MCl_4(TCE)_2 (M=Mn,Co,Cu,Zn)

    Ito H., Suzuki D., Watanabe H., Tanaka H., Kuroda S., Umemiya M., Takaishi S., Miyasaka H., Sugiura K.-i., Yamashita M., Tajima H., Ohmichi E., Osada T.

    Meeting abstracts of the Physical Society of Japan　61　(2)　689-689　2006/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  43. 24aWB-7 Ultrafast time-resolved luminescence spectroscopy in two-leg ladder halogen-bridged Pt complexes

    Takahashi Youtarou, Kawakami Daisuke, Takaishi Shinya, Yamashita Masahiro, Suemoto Tohru

    Meeting abstracts of the Physical Society of Japan　61　(2)　584-584　2006/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  44. 24aWB-4 Preparation and optical properties of optical thin films in strongly correlated electron systems of halogen-bridged metal complexes with alkyl chains

    Iwata M., Tao S., Miyagoe T., Matsuzaki H., Imamura K., Takamura M., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　61　(2)　583-583　2006/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  45. 23pQE-6 Photoinduced CDW-to-Mott-Hubbard transition and coherent oscillation of one-dimensional iodine-bridged platinum complexes

    Kimura K., Matsuzaki H., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　61　(2)　570-570　2006/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  46. 24aWB-3 The 20-fs pump-probe spectroscopy of halogen-bridged Ni complexes

    Miyagoe T., Tao S., Maeda A., Matsuzaki H., Okamoto H., Ohtsu H., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　61　(2)　583-583　2006/08/18

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  47. 29pRF-8 Femtosecond pump-probe spectroscopy of halogen-bridged Ni complexes films

    Miyagoe T., Tao S., Maeda A., Matsuzaki H., Okamoto H., Ohtsu H., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　61　(1)　758-758　2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  48. 27aTE-5 Structures and Physical Properties of Mn_4 Single-Molecule Magnets with Pt(mnt)_2 Molecular Conductors

    NAKATA Kazuya, Hiraga Hiroki, Miyasaka Hitoshi, Takaishi Shinya, Kajiwara Takashi, Yamashita Masahiro, Oshima Yugo, Nojiri Hiroyuki

    Meeting abstracts of the Physical Society of Japan　61　(1)　424-424　2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  49. 28pTD-3 Fabrication and optical properties of optical thin films of 1D halogen-bridged Ni compounds

    Tao S., Miyagoe T., Maeda A., Matsuzaki H., Okamoto H., Ohtsu H., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　61　(1)　836-836　2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  50. 28aPS-46 Photoinduced phase transition of a one-dimensional iodine-bridged platinum complex

    Kimura K., Matsuzaki H., Takaishi S., Yamashita M., Okamoto H.

    Meeting abstracts of the Physical Society of Japan　61　(1)　735-735　2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  51. 30aRB-5 Metal-Insulator transition of (DMET)_4MCl_4(TCE)_2(M=Mn,Co,Zn) II

    Ito H., Suzuki D., Watanabe H., Tanaka H., Kuroda S., Umemiya M., Takaishi S., Miyasaka H., Sugiura K.-i., Yamashita M., Tajima H., Ohmichi E., Osada T.

    Meeting abstracts of the Physical Society of Japan　61　(1)　846-846　2006/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  52. 外場によって誘起される相転移ー多重機能性ナノデバイスの応用に向けてー

    高石慎也, 山下正廣

    東京化学同人　2006

  53. 強相関電子系ナノワイヤー金属錯体を用いた非線形光学素子をめざして

    山下正廣, 高石慎也

    2006

  54. 20aWB-8 ESR studies of newly synthesized halogen-bridged mixed-metal complex Ni_<1-x>Pd_x(R,R-bn)_2Br_3

    Tanaka H., Kuroda S., Sasaki M., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　60　(2)　687-687　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  55. 22pWB-4 Electric transport and ESR in (DMET)_4MCl_4(TCE)_2(M=Mn,Co,Cu,Zn)

    Suzuki D., Watanabe H., Ito H., Tanaka H., Kuroda S., Umemiya M., Takaishi S., Miyasaka H., Sugiura K., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　60　(2)　718-718　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  56. 22pWB- Metal-Insulator transition of (DMET)_4MCl_4(TCE)_2(M=Mn,Co,Zn)

    Ito H., Suzuki D., Watanabe H., Tanaka H., Kuroda S., Umemiya M., Takaishi S., Miyasaka H., Sugiura K.-i., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　60　(2)　718-718　2005/08/19

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  57. 27pYK-6 Electrical conduction of Pt(chxn)_2I_3

    Ito H., Watanabe H., Suzuki D., Tanaka H., Kuroda S., Kawakami D., Sasaki M., Takaishi S., Miyasaka H., Sugiura K., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　60　(1)　823-823　2005/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  58. 27pYK-3 Valence arrangement in a MX-ladder complex

    Wakabayashi Y., Sawa H., Kawakami D., Takaishi S., Yamashita M.

    Meeting abstracts of the Physical Society of Japan　60　(1)　822-822　2005/03/04

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  59. 研究物語 ソリトンが見えた!!--STMを用いて成功した世界初の直接観察

    高石 慎也, 山下 正廣, 高見 知秀

    化学　59　(9)　32-35　2004/09

    Publisher: 化学同人

    ISSN： 0451-1964

  60. Soliton has been observed!!

    Shin-ya Takaishi, Masahiro Yamashita, Tomohide Takami

    Chemistry (Kagaku Dojin)　59　(9)　4-7　2004/09

    ISSN： 0451-1964

  61. 13pWF-11 新規擬一次元ハロゲン架橋 Ni 錯体 [NiL_2Br]Br_2 の 3 次非線形光学応答(分子磁性体, ハロゲン架橋錯体, 領域 7)

    高石 慎也, 山下 正廣, 宮坂 等, 杉浦 健一, 松崎 弘幸, 岸田 英夫, 岡本 博, 田中 久暁, 丸本 一弘, 伊東 裕, 黒田 新一

    日本物理学会講演概要集　59　(2)　759-759　2004/08/25

    Publisher: 一般社団法人日本物理学会

    ISSN： 1342-8349

  62. 13pWF-10 新規 Ladder 型ハロゲン架橋金属錯体の合成と物性(分子磁性体, ハロゲン架橋錯体, 領域 7)

    山下 正廣, 川上 大輔, 松永 諭, 高石 慎也, 宮坂 等, 杉浦 健一, 松崎 弘幸, 岸田 英夫, 岡本 博, 田中 久暁, 丸本 一弘, 伊東 裕, 黒田 新一

    日本物理学会講演概要集　59　(2)　758-758　2004/08/25

    Publisher: 一般社団法人日本物理学会

    ISSN： 1342-8349

  63. Direct observation of spin soliton by STM

    Shin-ya Takaishi, Masahiro Yamashita, Tomohide Takami

    Kotai Butsuri (Solid-state physics, in Japanese) by Agune technology center　40　(5)　327-332　2004/05

    ISSN： 0454-4544

  64. 30aWL-2 新規擬一次元ハロゲン架橋Ni錯体[NiL_2Br]Br_2(L:pn,bn)の合成と物性(M(M)X鎖・プロトン伝導)(領域7)

    高石 慎也, 山下 正廣, 宮坂 等, 杉浦 健一, 松崎 弘幸, 岸田 英夫, 岡本 博, 田中 久暁, 丸本 一弘, 伊東 裕, 黒田 新一

    日本物理学会講演概要集　59　(1)　868-868　2004/03/03

    Publisher: 一般社団法人日本物理学会

    ISSN： 1342-8349

  65. 30aWL-3 Magnetic excitations in halogen bridged nickel complex

    Itoh S., Takaishi S., Ikeda R.

    Meeting abstracts of the Physical Society of Japan　59　(1)　868-868　2004/03/03

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  66. 30aWL-1 STMによる擬一次元ハロゲン架橋金属錯体[Ni_<1-x>Pd_x(chxn)_2Br]Br_2の局所電子構造の直接的観測(M(M)X鎖・プロトン伝導)(領域7)

    山下 正廣, 高石 慎也, 宮坂 等, 杉浦 健一, 松崎 弘幸, 岸田 英夫, 岡本 博, 田中 久暁, 丸本 一弘, 伊東 裕, 黒田 新一, 高見 知秀

    日本物理学会講演概要集　59　(1)　868-868　2004/03/03

    Publisher: 一般社団法人日本物理学会

    ISSN： 1342-8349

  67. 23pXE-3 新規擬一次元ハロゲン架橋 MX 型 Ni 錯体の合成と物性

    高石 慎也, 松永 諭, 宮坂 等, 杉浦 健一, 山下 正廣, 岸田 英夫, 岡本 博, 田中 久暁, 丸本 一弘, 黒田 新一, 高見 知秀

    日本物理学会講演概要集　58　(2)　762-762　2003/08/15

    Publisher: 一般社団法人日本物理学会

    ISSN： 1342-8349

  68. Spin state in a halogen-bridged one-dimensional complexes [NiBr(chxn)_2]Br_2

    Takaishi Shinya, Kitagawa Hiroshi, Goto Atsushi, Shimizu Tadashi, Ikeda Ryuichi

    Meeting abstracts of the Physical Society of Japan　58　(1)　813-813　2003/03/06

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  69. Magnetic property in a quasi-one-dimensional complex CuCl_2(pid)

    Takaishi Shinya, Kitagawa Hiroshi, Mitani Tadaoki, Ikeda Ryuichi

    Meeting abstracts of the Physical Society of Japan　57　(2)　347-347　2002/08/13

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  70. Spin Structure and Dynamics in a Spin 1/2 One Dimensional Antiferromagnet, [NiBr(chxn)_2]Br_2 (chxn: 1R, 2R-cyclohexanediamine)

    TAKAISHI Shinya, KANO Masataka, KITAGAWA Hiroshi, FURUKAWA Yuji, KUMAGAI Ken-ichi, IKEDA Ryuichi

    2002　(8)　856-857　2002/08/05

    ISSN： 0366-7022

  71. 27pZC-11 Luminescence study of hsiogen-bridged one-dimensional oomplexes [Ni_1-xPd_xBr(chxn)_2]Br_2

    Takaishi Shinya, Kitagawa Hiroshi, Ikeda Ryuichi

    Meeting abstracts of the Physical Society of Japan　57　(1)　816-816　2002/03/01

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  72. Magnetic structure in Halogen-Bridged 1-D complex [NiBr(chxn)_2]Br_2

    Takaishi Shinya, Itoh Shinichi, Ikeda Ryuichi

    Meeting abstracts of the Physical Society of Japan　56　(1)　755-755　2001/03/09

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

  73. Metal valence structures in 1-D mixed metal complexes [Ni_<1-x>Pd_xBr(chxn_2)]Br_2 studied by NMR

    Kano Masataka, Takaishi Shinya, Kimura Noriyoshi, Kitagawa Hiroshi, Yamashita Masahiro, Ikeda Ryuichi

    Meeting abstracts of the Physical Society of Japan　56　(1)　756-756　2001/03/09

    Publisher: The Physical Society of Japan (JPS)

    ISSN： 1342-8349

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Books and Other Publications 2

  1. 金属錯体の現代物性化学

    高石慎也

    2008

  2. ナノマテリアルハンドブック

    高石慎也, 山下正廣

    2005/04

Presentations 3

  1. 電荷の双安定性を利用した配位高分子の機能化

    日本化学会第90回春季年会 シンポジウム　2010/03/26

  2. Phase Control and Band Gap Engineering in Halogen-Bridged 1D Metal Complexes

    日本化学会第89回春季年会 アジアシンポジウム　2009/03/26

  3. Functionality in One-Dimensional Halogen-Bridged Metal Complexes International-presentation

    7International Conference on Functional Materials and Devices　2008/06/15

Research Projects 12

  1. Organic nanocrystalline heterostructures for high energy density electrode materials

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2021/04/05 - 2026/03/31

  2. Innovative Functions Originating from Unexploited Electronic States in Nanowire Metal Complexes

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (S)

    Institution: Tohoku University

    2019/06/26 - 2024/03/31

  3. Continuous carrier control of redox MOFs by electrochemical doping

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (B)

    Institution: Tohoku University

    2019/04/01 - 2023/03/31

  4. 分子磁性体内包単層カーボンナノチューブによる新奇磁気特性の発現と向上

    山下 正廣, 高石 慎也, 加藤 恵一, 井口 弘章

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 基盤研究(A)

    Institution: 東北大学

    2019/04/01 - 2020/03/31

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    本研究では、分子磁性体の構造を一次元的に制御し、かつ電子の流れるパスとして機能する分子材料として単層のカーボンナノチューブ（CNT）に注目した。単層CNTは直径数nm、長さ数μｍと非常に大きなアスペクト比を持つ量子細線である。本研究では単層ＣＮＴの特徴である一次元内部空間を利用し、ここに分子磁性体を内包することで分子性磁性内包単層ＣＮＴを創製した。内包に用いた希土類内包フラーレン分子であるDySc2N@C80はDyイオンの大きな磁気異方性に由来する単分子磁石特性を示す。さらに、DySc2N@C80を単層ＣＮＴに内包することでDySc2N@C80が一次元的に整列し、単分子磁石間に働く磁気双極子相互作用が基底状態に作用し保持力の向上が確認された。また、一次元的に磁気希釈されているために分子間磁気相互作用が働かない。この一次元内包単分子磁石の分子スピントロニクス材料としての機能に注目した。電極間に一次元内包単分子磁石をセットし電流磁気特性を調べたところ、金電極では磁気抵抗効果は観測されなかった。一方、ニッケル電極では0.4％程度ではあるが磁気抵抗効果が観測された。今後は再現性も含め他の金属電極での挙動について研究を進める。また、局在スピンと伝導電子の相互作用についても詳細に検討していく予定である。

  5. Creation of the charge bistability and functions based on structural control in halogen-bridged metal complexes

    Takaishi Shinya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (C)

    Institution: Tohoku University

    2016/04/01 - 2019/03/31

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    We synthesized quqsi-one-dimensional metal complexes and gold halide perovskite complexes to realize the charge bistability. We have succeeded in synthesized bromo-bridged palladium complex with new in-plane ligand 2,3-diaminobutane-1,4-diol(dabdOH). This compound has the shortest Pd-Pd distance (5.18A) and largest electrical conductivity.

  6. Creation of the huge surface area by secondary connection of covalent cage molecules

    Yamashita Masahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Challenging Exploratory Research

    Institution: Tohoku University

    2016/04/01 - 2018/03/31

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    We have synthesized novel organic cage molecule with using tetraphenylmethane or triptycene. We synthesized porous organic polymer by linking each cage molecule. We masured 13C NMR and confirmed the linking. However, we found that diyne has reacted. In addition, surface area determined by N2 sorption at 77 K indicated that this compound possesses poor porosity. This indicates that the porous framework has collapsed, which is probably related with reaction of diyne part. Thus, we next synthesized alkyl linked framework. We will make characterization and measurements in near future.

  7. Creation of novel nonlinear properties in nanowire metal complexes with strong electron correlation

    Yamashita Masahiro

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (A)

    Institution: Tohoku University

    2014/04/01 - 2018/03/31

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    We have succeeded in synthesizing the novel Pd-Br chain compound with averaged valence state which is stable up to 400 K. We measured physical properties of this compound. This compound showed extremely high electrical conductivity (40 Scm-1at room temperature), which is 10^6 higher than previous Pd-Br compound. The averaged valence state was stable up to 443 K(decomposition temperature). Such a stable averaged valence state has not been shown in the previous Pd-Br chains. This is because hydrogen bond between hydroxy group of the dabdOH ligand and Br- ion made 1D chains far away each other, and resultantly compression of 1D chain direction occured. We also measured thermoelectoric property of a series of MX chain compounds. We measured [Ni1-xCox(chxn)2Br]Br2. The pure [Ni(chxn)2Br]Br2 showed negative Seebeck efficient, whereas the absolute value of that decreased with increasing Co ratio.

  8. Creation of dynamics based on the melting of charge-order in one-dimensional metal complexes

    TAKAISHI Shinya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2013/04/01 - 2015/03/31

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    Our research purpose is to create charge dynamics based on the charge bistability in quasi-one-dimensional halogen bridged metal complexes. In this study, we have succeeded in synthesizing the novel bromo-bridged palladium complex [Pd(cptn)2Br]Br2 (cptn=1R-2R-diaminocyclopentane). We have shown to show that this complex shows phase separation phenomena over wide temperature range. We also succeeded in visualize local electronic state by using scanning tunneling microscope. In addition, we synthesized new bromo-bridged palladium complex with new counterion. This complex showed phase transition between mexed-valence to averaged-valence state around room temperature. This is important when we use this complex as a photo switching optical materials.

  9. Creation of Switching Systems of Superparamagnets by External Stimulus

    YAMASHITA Masahiro, MIYASAKA Hitoshi, ITO Tasuku, TAKAISHI Shinya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research (S)

    Institution: Tohoku University

    2008 - 2012

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    Our purposes of this project are to create the new physical properties and functionalities in superparamagnets by switched with the external stimulus. One strategy that we have employed is to prepare conducting SMMs, like [Pc_2Tb]Cl_0.6, which has a blocking temperature of 47K and whose magnetic properties showed hysteresis below 10K. This SMM shows negative magnetoresistance below 8 K. In our second strategy, we have incorporated planar memory into a double-decker Tb(III) SMM (Pc_2Tb). In addition, we have observed a Kondo Effect at 4.8 K by using scanning tunneling spectroscopy (STS) for the first time. We can control the appearance and disappearance of the Kondo peak by injecting an electron using an STS. This is considered to be the first single-molecule memory device. In our third strategy, we have prepared field effect transistor (FET) devices of SMMs. The Pc2Dy device shows ambipolar (n- and p-type) behavior, whereas the Pc2Tb device shows p-type behavior. This difference is explained by the energy levels of the lanthanide ions. In the fourth strategy, we have doped Cs atoms onto Pc_2Y. Although Pc_2Y molecules show Kondo peaks due to the unpaired spin in the Pc ligand, when doped, Kondo peaks are not observed due to coupling of the radical Pc and the 6s electrons of the Cs atom. Finally, by doping with and manipulating the Cs atoms, we could write the letters T and U, which are the initials of Tohoku University.

  10. Critical phase control and creation of dynamics in one-dimensional metal complexes based on spin-charge-lattice coupling

    TAKAISHI Shinya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2009 - 2010

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    Quasi-one-dimensional metal complex has been attracting much attention because they show physical properties. All of the Ni compounds and Pd and Pt compounds form MH and CDW states, respectively, without exception. In the our former research, we have succeeded in realizing Pd (III) MH state. In this study, we measured ^<15>N-NMR spectra and succeeded in observing that CDW amplitude gradually decreased with decreasing temperaure for the first time. In addition, we tried to realize Pt (III) MH state by introducing long alkyl chains into iodo-bridged Pt compounds. As a result, we have clarified that Pt-Pt distance is gradually decreased with longing alkyl chain length.

  11. Control of dynamics and exploration of the novel physical properties in one-dimensional complexes based on the spin-charge-lattice coupling

    TAKAISHI Shinya

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Young Scientists (B)

    Institution: Tohoku University

    2007 - 2008

  12. Science of Nano-Wire Metal Complexes with Strong Electron-Correlation

    YAMASHITA Masahiro, YONEMITSU Kenji, OKAMOTO Hiroshi, KATO Masako

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Creative Scientific Research

    2003 - 2007

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    Quasi-one-dimensional halogen-bridged Pd compounds take a Pd(II)-Pd(IV) mixed-valence state or charge-density-wave state or Peierls Insulator due to the electron-phonon interaction. In order to realize a Pd(III) Mott-Insulator we used the sulphonic acid counter anions with long alkyl chains. In the raw of the five alkyl chain, the Pd compound shows the phase transition from the Pd(II)-Pd(IV) Peierls Insulator into the Pd(III) Mott-Insulator about 200K with hysteresis, which is the inverse Peierls transition. This phenomena were evidenced by ESR, X-ray single-crystal analyses, single-crystal reflection spectra, electrical conductivities, etc. In the case of the ten and twelve alkyl chains, the Pd(III) Mott-insulators are the ground state even in mom temperature, which is the first example. These interesting phenomena are well explained by the fastener effect or chemical pressure of the long alkyl chains. In the Pd(III) Mott-Insulator at 15 K the photo-irradiation with the energy of the charge transfer band (0.5eV) produced the Pd(II)-Pd(IV) Peierls Insulator state, while the photo-irradiation with L5 eV produced the metallic state. Such photo-induced phase transitions occurred in femto-seconds, which are available for the ultra-fast optical communication.

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Social Activities 1

  1. 出前授業（仙台東中学校）

    2014/11/23 -

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    仙台東中学校にて出前授業を行った

Other 1

  1. 電気二重層トランジスタによる一次元金属錯体の キャリア数制御と熱電変換材料への展開

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    電気二重層トランジスタを利用してバンドフィリングを制御することにより熱電特性を最適化する。