Details of the Researcher

PHOTO

Ryota Sakamoto
Section
Graduate School of Science
Job title
Professor
Degree

  • Ph.D. in Science (The University of Tokyo)

Researcher ID
C-6660-2011
Profile

学歴
1998年 3月 長野県松本深志高校 卒業
2002年 3月 東京大学理学部化学科 卒業
2004年 3月 東京大学大学院理学系研究科化学専攻修士課程 修了
2007年 3月 東京大学大学院理学系研究科化学専攻博士課程 修了

2006年 7-9月 The Department of Chemistry and Chemical Biology, Cornell University （短期留学）

 

職歴
2007年 4月-2009年12月 東京理科大学理学部第一部化学科 助教（研究室主宰：山村 剛士 教授）
2010年 1月-2010年 9月 東京大学大学院理学系研究科化学専攻 特任助教（研究室主宰：西原 寛 教授）
2010年10月-2019年9月 東京大学大学院理学系研究科化学専攻 助教（研究室主宰：西原 寛 教授）
2019年10月-2021年9月 京都大学大学院工学研究科物質エネルギー化学専攻 准教授（研究室主宰：阿部 竜 教授）

2021年10月-現在 東北大学大学院理学研究科化学専攻 教授（PI）

2012年 7月 ストラスブール大学（フランス）客員教授
2015年10月-2019年3月 （兼任）国立研究開発法人 科学技術振興機構 さきがけ研究者（JST-PRESTO）
研究領域「超空間制御と革新的機能創成」

 

受賞歴等

2019年度矢崎学術賞（奨励賞）（公益財団法人 矢崎科学技術振興記念財団、2020年）
「エレクトロニクス・スピントロニクスへ応用可能な「ボトムアップ型」金属錯体ナノシート」

第14回わかしゃち奨励賞（最優秀賞）（愛知県、公益財団法人科学技術交流財団、公益財団法人日比科学技術振興財団、2020年）
「革新的ナノカーボン材料「単層グラフィジイン」の精密合成とその半導体特性の解明」

Journal of Materials Chemistry A Emerging Investigators 2018 (J. Mater. Chem. A doi: 10.1039/C8TA07347C) 

JACS Young Investigators Virtual Issue 2018 (J. Am. Chem. Soc. 2017, 139, 3145)

ATI研究奨励賞2018（公益財団法人 新世代研究所、2018年）
「史上初の有機二次元トポロジカル絶縁体『ジチオレンナノシート』への挑戦」

平成30年度 科学技術分野の文部科学大臣表彰 若手科学者賞（文部科学省、2018年）
「機能性分子低次元系のボトムアップ創製に関する研究」

Chemical Communications Most downloaded articles of 2017: Inorganic and Materials Chemistry (Chem. Commun. 2017, 53, 5781)

第65回進歩賞（公益社団法人日本化学会、2016年）
「金属錯体を基盤とする機能性低次元系のボトムアップ創製」

第4回研究開発奨励賞（一般財団法人エヌエフ基金、2015年）
「省エネルギーおよびエネルギー創出を担う「ボトムアップ型」ナノシート」

平成27年度研究奨励賞（錯体化学会、2015年）
「金属錯体を基盤とする機能性低次元系の創製」

第3回新化学技術研究奨励賞（公益財団法人 新化学技術推進協会、2014年）
「エレクトロニクス・スピントロニクスへ応用可能な「ボトムアップ型」金属錯体ナノシート」

第8回有機電気化学奨励賞（公益社団法人 電気化学会 有機電気化学研究会、2012年）
「芳香族アミンを基盤とする光・電気機能性分子群の創製」

平成21年度笹川科学研究奨励賞（公益財団法人 日本科学協会、2010年）
「2, 3-ジエチニルフマル酸・マレイン酸を架橋とする新規ポルフィリンπ共役ダイマー型色素増感太陽電池色素の創製」

Research History 1

  • 2021/10 - Present
    Tohoku University　Graduate School of Science　Professor

Committee Memberships 13

  • 錯体化学会　理事（BJSCC担当）

    2021/10 - 2025/09

  • 電気化学会 関東支部 幹事

    2011 - 2013

  • ETH Zurich Postdoctoral Fellowship Program reviewer

    2019 -

  • 43rd International Conference on Coordination Chemistry S39-Coordination chemistry at the nanoscale: functional nanoparticles and nanosheet (Organizer)

    2018 -

  • 錯体化学会第６５回討論会 特別シンポジウム「New aspects in two-dimensional materials ― Focusing on fusion with coordination chemistry―」開催責任者

    2015 -

  • 新学術領域研究「人工光合成」ニュースレター編集委員

    2015 -

  • XXVI International Conference on Organometallic Chemistry (ICOMC2014) 組織委員

    2014 -

  • 第 64 回錯体化学討論会プログラム編成委員

    2014 -

  • 第９５春季年会プログラム編成委員

    2014 -

  • 電気化学会 有機電気化学研究会 幹事

    2013 -

  • 第９４春季年会プログラム編成委員

    2013 -

  • 電気化学会 関東支部夏の学校 幹事

    2012 -

  • 第 225 回やさしい科学技術セミナー（主催：国際科学技術財団） 講師

    2012 -

Show all ︎Show first 5

Research Interests 12

  • Nanoscience.

  • Nanoscience

  • Coordination Chemistry.

  • Coordination Chemistry

  • 電気化学

  • 有機金属化学

  • 無機化学

  • 光化学

  • Electrochemistry

  • Organometallic chemistry

  • Inorganic chemistry

  • Photochemistry

Research Areas 1

  • Nanotechnology/Materials / Inorganic and coordination chemistry /

Awards 13

  1. 2019年度矢崎学術賞（奨励賞）

    2020　公益財団法人 矢崎科学技術振興記念財団　「エレクトロニクス・スピントロニクスへ応用可能な「ボトムアップ型」金属錯体ナノシート」

  2. 第 14 回わかしゃち奨励賞（最優秀賞）

    2020　愛知県、公益財団法人科学技術交流財団、公益財団法人日比科学技術振興財団　「革新的ナノカーボン材料「単層グラフィジイン」の精密合成とその半導体特性の解明」

  3. 平成 30 年度 科学技術分野の文部科学大臣表彰 若手科学者賞

    2018　文部科学省　「機能性分子低次元系のボトムアップ創製に関する研究」

  4. ATI 研究奨励賞 2018

    2018　公益財団法人 新世代研究所　「史上初の有機二次元トポロジカル絶縁体『ジチオレンナノシート』への挑戦」

  5. Journal of Materials Chemistry A Emerging Investigators 2018

    2018　J. Mater. Chem

  6. JACS Young Investigators Virtual Issue 2018

    2017　J. Am. Chem. Soc.

  7. Chemical Communications Most downloaded articles of 2017

    2017　Inorganic and Materials Chemistry

  8. 第65回進歩賞

    2016　日本化学会　「金属錯体を基盤とする機能性低次元系のボトムアップ創製」

  9. 平成 27 年度研究奨励賞

    2015　錯体化学会　「金属錯体を基盤とする機能性低次元系の創製」

  10. 第 4 回研究開発奨励賞

    2015　一般財団法人エヌエフ基金　「省エネルギーおよびエネルギー創出を担う「ボトムアップ型」ナノシート」

  11. 第 3 回新化学技術研究奨励賞

    2014　公益財団法人 新化学技術推進協会　「エレクトロニクス・スピントロニクスへ応用可能な「ボトムアップ型」金属錯体ナノシート」

  12. 第 8 回有機電気化学奨励賞

    2012　公益社団法人 電気化学会 有機電気化学研究会　「芳香族アミンを基盤とする光・電気機能性分子群の創製」

  13. 平成 21 年度笹川科学研究奨励賞

    2010　公益財団法人 日本科学協会　「2, 3-ジエチニルフマル酸・マレイン酸を架橋とする新規ポルフィリン π 共役ダイマー型色素増感 太陽電池色素の創製」

Show all ︎Show 5

Papers 147

  1. Harnessing metal–ligand coordination dynamics in polymer-based soft materials

    Tomoki Tateishi, Shuta Adachi, Kosuke Toki, Taku Kitayama, Rio Shoji, Ryota Sakamoto

    Coordination Chemistry Research　3　100029-100029　2026/06

    Publisher: Elsevier BV

    DOI： 10.1016/j.cocr.2026.100029 　

    ISSN： 2950-4864

  2. In Situ Generation of a Coordinatively Unsaturated Nickel Site Enabling Reversible H 2 Sorption in the Solid State

    Shunya Tanaka, Ryojun Toyoda, Ryota Sakamoto, Shinya Takaishi

    Organometallics　45　(10)　1144-1149　2026/05/13

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.organomet.6c00035 　

    ISSN： 0276-7333

    eISSN： 1520-6041

  3. All-in-one cocatalyst for photocatalytic overall water splitting

    Ryota Sakamoto, Jingyan Guan

    Nature Chemistry　18　(6)　988-989　2026/05/11

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41557-026-02143-4 　

    ISSN： 1755-4330

    eISSN： 1755-4349

  4. Two-dimensional metal–organic frameworks offer all-in-one cocatalysts for photocatalytic overall water splitting

    Jingyan Guan, Hajime Suzuki, Kazuhide Kamiya, Takashi Harada, Rintaro Adachi, Osamu Tomita, Hirofumi Kurokawa, Daisuke Unabara, Koji Yonekura, Naoya Fukui, Hiroaki Maeda, Kunihisa Sugimoto, Yuichi Yamaguchi, Akinori Saeki, Akira Yamakata, Akihiko Kudo, Ryu Abe, Ryota Sakamoto

    Nature Chemistry　18　(6)　1053-1061　2026/04/23

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41557-026-02133-6 　

    ISSN： 1755-4330

    eISSN： 1755-4349

  5. Exciton Migration Through Coordination Nanochains Immobilized in Polymer Films

    Haru Taniguchi, Rio Shoji, Linus Y. Nagata, Shinya Takaishi, Naoya Fukui, Ryota Sakamoto, Ryojun Toyoda

    ChemPhotoChem　10　(4)　2026/04/16

    Publisher: Wiley

    DOI： 10.1002/cptc.202500371 　

    ISSN： 2367-0932

    eISSN： 2367-0932

    More details Close

    Molecular‐scale optical energy transport is a key technology for next‐generation nanodevices. Herein, we report the solid‐state exciton transport properties of bis(dipyrrinato)zinc(II) coordination polymers, ZnDP nanochains, which are one‐dimensional molecular chains with precisely controlled lengths and sequences. While these nanochains are known to feature efficient exciton migration in solution, their functionality in an immobilized state—a prerequisite for device integration—has remained elusive, as aggregation upon solidification typically causes severe quenching of their photoluminescence. We addressed this issue by embedding the nanochains into polymer matrices of polystyrene (PS) and poly(methyl methacrylate) (PMMA). Spectroscopic analysis of the resulting composite films demonstrates that the efficient intramolecular energy transfer from the bridging ligands to a terminal capping ligand is remarkably preserved. The photoluminescence quantum yield was revealed to respond to the matrix polarity and nanochain concentration. A low‐polarity PS matrix and a low doping concentration (0.1 wt%) were optimal to suppress non‐radiative decay pathways, such as charge separation and aggregation‐caused quenching. This work provides the first systematic validation of exciton transport in immobilized ZnDP nanochain, paving the way for their application as smart photonic components in miniaturized devices.

  6. Insights into phonons and spin-lattice relaxation in copper(ii) and vanadyl(iv) porphyrin metal-organic frameworks from density functional theory

    Yukina Suzuki, Nina Strasser, Ryota Sakamoto, Masahiro Yamashita

    PHYSICAL CHEMISTRY CHEMICAL PHYSICS　28　(4)　2858-2872　2026/01/28

    DOI： 10.1039/d5cp04453g 　

    ISSN： 1463-9076

    eISSN： 1463-9084

  7. Room-temperature chromatographic H2/D2 separation via a solid dihydrogen complex with balanced thermodynamics and kinetics

    Tamon Yamauchi, Taku Kitayama, Kaiji Uchida, Nino Keuzenkamp, Hiroaki Iguchi, Ryojun Toyoda, Ryota Sakamoto, Hao Xue, Naoki Kishimoto, Shin-ichiro Noro, Shinya Takaishi

    GREEN CHEMISTRY　28　(3)　2026/01/19

    DOI： 10.1039/d5gc04476f 　

    ISSN： 1463-9262

    eISSN： 1463-9270

  8. Nickel( <scp>ii</scp> ) porphyrin/fullerene C 70 porous molecular cocrystal featuring a robust one-dimensional channel

    Nobuhiro Sato, Kosuke Toki, Tomoki Tateishi, Masaya Tsumura, Ryojun Toyoda, Shinya Takaishi, Yuki Kurashige, Kunihisa Sugimoto, Ryota Sakamoto

    Inorganic Chemistry Frontiers　13　(10)　4578-4586　2026

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d6qi00339g 　

    eISSN： 2052-1553

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    Two cocrystals were obtained using C 70 and a Ni-porphyrin derivative: a porous one featuring one-dimensional channels, and a nonporous one. High-pressure single-crystal X-ray diffraction clarified their pressure resistivity.

  9. Synthesis and applications of porous carbonaceous materials with inherited molecular structural features from the precursor molecules

    Koki Chida, Takeharu Yoshii, Yuta Nishina, Kazuhide Kamiya, Ryota Sakamoto, Fumito Tani, Tomoki Ogoshi, Hirotomo Nishihara

    Carbon　245　120751-120751　2025/10

    Publisher: Elsevier BV

    DOI： 10.1016/j.carbon.2025.120751 　

    ISSN： 0008-6223

  10. Synthesis and applications of porous carbonaceous materials with inherited molecular structural features from the precursor molecules

    Koki Chida, Takeharu Yoshi, Yuta Nishina, Kazuhide Kamiya, Ryota Sakamoto, Fumito Tani, Tomoki Ogoshi, Hirotomo Nishihara

    Carbon Reports　4　(3)　179-187　2025/09/01

    Publisher: The Carbon Society of Japan

    DOI： 10.7209/carbon.040308 　

    eISSN： 2436-5831

  11. One-dimensional bis(dipyrrinato)zinc(II)-linked porphyrinatozinc(II) polymer: synthesis, exfoliation into single wires, and photofunctionality

    Suzaliza Mustafar, Rio Shoji, Ryojun Toyoda, Hiroaki Maeda, Yasuyo Ogino, Hiroshi Nishihara, Ryota Sakamoto

    Bulletin of the Chemical Society of Japan　98　(6)　2025/05/30

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/bulcsj/uoaf050 　

    ISSN： 0009-2673

    eISSN： 1348-0634

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    Abstract Bottom-up nanomaterials are attractive as constituents of molecular-scale devices. In particular, 1D coordination nanochains based on bis(dipyrrinato)zinc(II) complexes are promising candidates for molecular photonic wires, as they can deliver photogenerated excitons along their straight chain structure efficiently. Moreover, the coordination polymers can be dispersed in organic solvents. This feature allows the preparation of a thin film on an electrode surface, which can serve as an active layer of photoelectric conversion systems. Hybridization of multiple photoactive chromophores in single-molecular materials may enhance their photophysical properties. Porphyrins and dipyrrin–metal complexes are well-studied pigments that convert the absorbed light energy into photofunctions such as photoluminescence and photoelectric conversion. Here, by expanding the design of the coordination nanowires, we present the preparation of a 1D coordination polymer bearing 2 efficient photo-absorbing chromophores: bis(dipyrrinato)zinc(II) and porphyrinatozinc(II). The bulky substituents on the porphyrin units allow the coordination polymer to be exfoliated into single-molecular wires with a height of 2.5 ± 1.0 nm and a length of 1.8 ± 0.3 μm. The coordination polymer exhibited photoluminescence and photoelectric conversion properties derived from the electronic interaction between the 2 moieties. Therefore, the design flexibility of bottom-up coordination nanochains can enrich the photofunctionality and broaden their potential applications in molecular devices.

  12. Discrete coordination nanochains based on photoluminescent dyes reveal intrachain exciton migration dynamics

    Ryojun Toyoda, Naoya Fukui, Haru Taniguchi, Hiroki Uratani, Joe Komeda, Yuta Chiba, Hikaru Takaya, Hiroshi Nishihara, Ryota Sakamoto

    Nature Communications　16　(1)　2025/02/04

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41467-025-56381-0 　

    eISSN： 2041-1723

  13. Revisiting cobaloxime(<scp>ii</scp>) chemistry and clearing misconceptions of cobaloxime(<scp>ii</scp>) in diamagnetic Ni(<scp>ii</scp>) and Pd(<scp>ii</scp>) matrixes using comprehensive magnetic measurements

    Yukina Suzuki, Mirosław Arczyński, Masanori Wakizaka, Hisaaki Tanaka, Ryuta Ishikawa, Takefumi Yoshida, Takeshi Yamane, Kazunobu Sato, Ryota Sakamoto, Masahiro Yamashita

    Physical Chemistry Chemical Physics　27　(19)　10321-10330　2025

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d5cp00629e 　

    ISSN： 1463-9076

    eISSN： 1463-9084

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    Co(ii) was doped into the diamagnetic one-dimensional framework of [Ni/PdII(Hdmg)2] (Hdmg = dimethylglyoximate anion) to study magnetic properties as a potential spin qubit.

  14. Uncommon quadruple stacking topology in a honeycomb-sheet MOF compatible with through-space conduction

    Tappei Tanabe, Liyuan Qu, Kenta Ueno, Shinya Takaishi, Masahiro Yamashita, Yuh Hijikata, Ryotaro Matsuda, Ryota Sakamoto, Hiroaki Iguchi

    Chemical Communications　61　(52)　9500-9503　2025

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d5cc00084j 　

    ISSN： 1359-7345

    eISSN： 1364-548X

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    Quadruple stacking topology with an unusual threefold stacking periodicity among four honeycomb sheets was realized in a flexible, wavy honeycomb-sheet MOF (PMC-20).

  15. Two-dimensional conductive metal–organic framework with 2,3,6,7,14,15-triptycenehexathiol (TCHT) ligand: synthesis, structure, electrical conductivity and CO2RR activity

    Wataru Murakami, Taku Kitayama, Yuta Chiba, Haruko Moteki, Risa Shirato, Kazuyuki Iwase, Ryojun Toyoda, Ryota Sakamoto, Shinya Takaishi

    Journal of Materials Chemistry A　13　(31)　25724-25731　2025

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d5ta02893k 　

    ISSN： 2050-7488

    eISSN： 2050-7496

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    We report the synthesis of a novel vertical ligand, 2,3,6,7,14,15-triptycenehexathiol (TCHT), and its corresponding MOF, Cu-TCHT with honeycomb structure. Cu-TCHT showed electrical conductivity and good CO2RR activity.

  16. Graphene oxide vacancies-assisted low temperature synthesis of graphitic carbon quantum dots for enhanced conductive networks in epoxy composites

    Thanayuth Jongrungrotbaworn, Rungkiat Nganglumpoon, Suthasinee Watmanee, Sukkaneste Tungasmita, Ryota Sakamoto, Joongjai Panpranot

    RSC Advances　15　(29)　24040-24052　2025

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d5ra03471j 　

    eISSN： 2046-2069

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    Graphitic carbon quantum dots (g-CQDs) were synthesized via a graphene oxide vacancies-assisted low-temperature method and employed in a GNP/g-CQDs hybrid filler to enhance the electrical and thermal conductivities of epoxy composites.

  17. Thermally polymerizable phthalocyanine realizes a metal–nitrogen-doped carbon material featuring a defined single-atom catalyst motif with CO2RR activity

    Yuki Sano, Daichi Nakajima, Biplab Manna, Koki Chida, Ryojun Toyoda, Shinya Takaishi, Kazuyuki Iwase, Koji Harano, Yuta Nishina, Takeharu Yoshii, Ryota Sakamoto

    Journal of Materials Chemistry A　13　(35)　28887-28895　2025

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d5ta02720a 　

    ISSN： 2050-7488

    eISSN： 2050-7496

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    Metal–nitrogen-doped carbon materials (MNCs) exhibit good electrocatalytic performance owing to the intrinsic advantages of carbon-based materials and the presence of isolated and stabilized metal atoms coordinated by nitrogen sites.

  18. 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

    More details Close

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

  19. 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

  20. Ordered Carbonaceous Framework Synthesized from Hexaazatrinaphthylene with Enediyne Groups via Solid-State Bergman Cyclization Reaction

    Yuki Sano, Ryojun Toyoda, Koki Chida, Takeharu Yoshii, Hirotomo Nishihara, Yuta Nishina, Daisuke Asanoma, Shinya Takaishi, Kunihisa Sugimoto, Ryota Sakamoto

    ACS Applied Materials & Interfaces　2024/08/05

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acsami.4c06959 　

    ISSN： 1944-8244

    eISSN： 1944-8252

  21. Porphyrin/Fullerene Porous Molecular Cocrystal Featuring a Robust One-Dimensional Channel

    Nobuhiro Sato, Ryojun Toyoda, Tetsu Sato, Zi Lang Goo, Shinya Takaishi, Koki Chida, Takeharu Yoshii, Hirotomo Nishihara, Kunihisa Sugimoto, Ryota Sakamoto

    Precision Chemistry　2024/06/12

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/prechem.4c00036 　

    ISSN： 2771-9316

    eISSN： 2771-9316

  22. 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

  23. Quantitative and qualitative analysis of nitrogen species in carbon at the ppm level

    Takeharu Yoshii, Ginga Nishikawa, Viki Kumar Prasad, Shunsuke Shimizu, Ryo Kawaguchi, Rui Tang, Koki Chida, Nobuhiro Sato, Ryota Sakamoto, Kouhei Takatani, Daniel Moreno-Rodríguez, Peter Škorňa, Eva Scholtzová, Robert Karoly Szilagyi, Hirotomo Nishihara

    Chem　2024/04

    Publisher: Elsevier BV

    DOI： 10.1016/j.chempr.2024.03.029 　

    ISSN： 2451-9294

  24. Manipulating the Morphology and Electronic State of a Two-Dimensional Coordination Polymer as a Hydrogen Evolution Cocatalyst Enhances Photocatalytic Overall Water Splitting

    Jingyan Guan, Kazuma Koizumi, Naoya Fukui, Hajime Suzuki, Kantaro Murayama, Ryojun Toyoda, Hiroaki Maeda, Kazuhide Kamiya, Keitaro Ohashi, Shinya Takaishi, Osamu Tomita, Akinori Saeki, Hiroshi Nishihara, Hiroshi Kageyama, Ryu Abe, Ryota Sakamoto

    ACS Catalysis　14　(2)　1146-1156　2024/01/19

    DOI： 10.1021/acscatal.3c04389 　

    eISSN： 2155-5435

  25. 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

  26. 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

  27. 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

  28. Observation of slow magnetic relaxation phenomena in spatially isolated π-radical ions

    Shohei Koyama, Kazunobu Sato, Masahiro Yamashita, Ryota Sakamoto, Hiroaki Iguchi

    Physical Chemistry Chemical Physics　25　(7)　5459-5467　2023/01/17

    DOI： 10.1039/d2cp06026d 　

    ISSN： 1463-9076

  29. Single-Crystal Structures of Benzenehexathiol and Its Disulfide Forms

    Yuta Chiba, Tappei Tanabe, Kazuma Koizumi, Ryojun Toyoda, Hiroaki Iguchi, Shinya Takaishi, Ryota Sakamoto

    Inorganic Chemistry　62　(29)　11731-11736　2023

    DOI： 10.1021/acs.inorgchem.3c01734 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  30. Layered metal-organic frameworks and metal-organic nanosheets as functional materials

    Ryota Sakamoto, Naoya Fukui, Hiroaki Maeda, Ryojun Toyoda, Shinya Takaishi, Tappei Tanabe, Joe Komeda, Pilar Amo-Ochoa, Félix Zamora, Hiroshi Nishihara

    Coordination Chemistry Reviews　472　2022/12/01

    DOI： 10.1016/j.ccr.2022.214787 　

    ISSN： 0010-8545

  31. Coordination chemistry for innovative carbon-related materials

    Ryota Sakamoto, Ryojun Toyoda, Guan Jingyan, Yuta Nishina, Kazuhide Kamiya, Hirotomo Nishihara, Tomoki Ogoshi

    Coordination Chemistry Reviews　466　2022/09/01

    DOI： 10.1016/j.ccr.2022.214577 　

    ISSN： 0010-8545

  32. Synthesis and electrocatalysis of ordered carbonaceous frameworks from Ni porphyrin with four ethynyl groups Peer-reviewed

    Koki Chida, Takeharu Yoshii, Mao Ohwada, Yuichiro Hayasaka, Joe Komeda, Ryota Sakamoto, Jun Maruyama, Kazuhide Kamiya, Masataka Inoue, Fumito Tani, Hirotomo Nishihara

    Catalysis Today　113830-113830　2022/07

    Publisher: Elsevier BV

    DOI： 10.1016/j.cattod.2022.06.045 　

    ISSN： 0920-5861

  33. Two-Dimensional Metal–Organic Framework Acts as a Hydrogen Evolution Cocatalyst for Overall Photocatalytic Water Splitting Peer-reviewed

    Jingyan Guan, Tigmansu Pal, Kazuhide Kamiya, Naoya Fukui, Hiroaki Maeda, Tetsu Sato, Hajime Suzuki, Osamu Tomita, Hiroshi Nishihara, Ryu Abe, Ryota Sakamoto

    ACS Catalysis　12　(7)　3881-3889　2022/04/01

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acscatal.1c05889 　

    ISSN： 2155-5435

    eISSN： 2155-5435

  34. Manipulation of charge carrier flow in Bi4NbO8Cl nanoplate photocatalyst with metal loading Peer-reviewed

    Kanta Ogawa, Ryota Sakamoto, Chengchao Zhong, Hajime Suzuki, Kosaku Kato, Osamu Tomita, Kouichi Nakashima, Akira Yamakata, Takashi Tachikawa, Akinori Saeki, Hiroshi Kageyama, Ryu Abe

    Chemical Science　13　(11)　3118-3128　2022/03

    DOI： 10.1039/d1sc06054f 　

    ISSN： 2041-6520

    eISSN： 2041-6539

  35. Ultralong π-Conjugated Bis(terpyridine)metal Polymer Wires Covalently Bound to a Carbon Electrode: Fast Redox Conduction and Redox Diode Characteristics Peer-reviewed

    Kuo-Hui Wu, Ryota Sakamoto, Hiroaki Maeda, Eunice Jia Han Phua, Hiroshi Nishihara

    Molecules　26　(14)　4267-4267　2021/07/14

    Publisher: MDPI AG

    DOI： 10.3390/molecules26144267 　

    eISSN： 1420-3049

    More details Close

    We developed an efficient and convenient electrochemical method to synthesize π-conjugated redox metal-complex linear polymer wires composed of azobenzene-bridged bis(terpyridine)metal (2-M, M = Fe, Ru) units covalently immobilized on glassy carbon (GC). Polymerization proceeds by electrochemical oxidation of bis(4′-(4-anilino)-2,2′:6′,2″-terpyridine)metal (1-M) in a water–acetonitrile–HClO4 solution, affording ultralong wires up to 7400 mers (corresponding to ca. 15 μm). Both 2-Fe and 2-Ru undergo reversible redox reactions, and their redox behaviors indicate remarkably fast redox conduction. Anisotropic hetero-metal-complex polymer wires with Fe and Ru centers are constructed via stepwise electropolymerization. The cyclic voltammograms of two hetero-metal-complex polymer wires, GC/[2-Fe]–[2-Ru] (3) and GC/[2-Ru]–[2-Fe] (4), show irreversible redox reactions with opposite electron transfer characteristics, indicating redox diodelike behavior. In short, the present electrochemical method is useful to synthesize polymer wire arrays and to integrate functional molecules on carbon.

  36. Layered Perovskite Oxyiodide with Narrow Band Gap and Long Lifetime Carriers for Water Splitting Photocatalysis Peer-reviewed

    Kanta Ogawa, Hajime Suzuki, Chengchao Zhong, Ryota Sakamoto, Osamu Tomita, Akinori Saeki, Hiroshi Kageyama, Ryu Abe

    Journal of the American Chemical Society　143　(22)　8446-8453　2021/05

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/jacs.1c02763 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  37. Turn-On Fluorescent Probe Based on a Dansyl Triarginine Peptide for Ganglioside Imaging

    Ryota Sakamoto

    ACS Organic & Inorganic Au　2021

    DOI： 10.1021/ACSORGINORGAU.1C00013 　

  38. Earth-abundant iron(iii) species serves as a cocatalyst boosting the multielectron reduction of IO3−/I− redox shuttle in Z-scheme photocatalytic water splitting Peer-reviewed

    Katsuya Murofushi, Kanta Ogawa, Hajime Suzuki, Ryota Sakamoto, Osamu Tomita, Kosaku Kato, Akira Yamakata, Akinori Saeki, Ryu Abe

    Journal of Materials Chemistry A　9　(19)　11718-11725　2021

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d1ta01703a 　

    ISSN： 2050-7488

    eISSN： 2050-7496

    More details Close

    Z-scheme water splitting has exhibited significant potential for practical water splitting under visible light irradiation. This system comprises two photocatalysts for O2 and H2 evolution, along with a redox shuttle for transporting electrons between these photocatalysts. Therefore, the promotion of redox reaction of the shuttle play a crucial role in efficient water splitting. In particular, for multielectron redox reactions (e.g., IO3−/I−), a cocatalyst is indispensable, where only noble metals may contribute thus far. Herein, we demonstrate that FeOx catalyzes the multielectron IO3− reduction on the Bi4TaO8Cl photocatalyst. While bare Bi4TaO8Cl does not show O2 evolution from an aqueous IO3− solution because of the lack of multielectron reduction ability, FeOx loading enables O2 evolution. Based on a series of experimental investigations, such as time-resolved spectroscopy, we elucidated that the O2 evolution enhancement stems from the promotion of multielectron reduction of IO3− by FeOx. The FeIII/FeII redox couple in the loaded FeOx facilitates both electron carrier capture from Bi4TaO8Cl and reduction of the redox mediator. In addition, FeOx is effective for other photocatalysts and redox mediators. To the best of our knowledge, the developed cocatalysts is the first earth-abundant cocatalyst for multielectron redox mediators.

  39. Synthesis, band structure and photocatalytic properties of Sillén–Aurivillius oxychlorides BaBi5Ti3O14Cl, Ba2Bi5Ti4O17Cl and Ba3Bi5Ti5O20Cl with triple-, quadruple- and quintuple-perovskite layers Peer-reviewed

    Daichi Ozaki, Hajime Suzuki, Kanta Ogawa, Ryota Sakamoto, Yoshiyuki Inaguma, Kouichi Nakashima, Osamu Tomita, Hiroshi Kageyama, Ryu Abe

    Journal of Materials Chemistry A　9　(13)　8332-8340　2021

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d0ta12550d 　

    ISSN： 2050-7488

    eISSN： 2050-7496

    More details Close

    Sillén–Aurivillius layered oxyhalides with single-, double- and triple-perovskite slabs (n = 1–3) are promising visible-light-driven photocatalysts for water splitting with different behaviors observed depending on n. However, there was no report on the photocatalytic activity of n ≥ 4 phases. Here, we report three new oxychlorides BaBi5Ti3O14Cl, Ba2Bi5Ti4O17Cl and Ba3Bi5Ti5O20Cl, respectively, with triple-, quadruple- and quintuple-perovskite layers. The synthesis of these phases involves a “bricklaying” synthesis, where a plain perovskite, BaTiO3, a Sillén phase, BaBiO2Cl, and Aurivillius phases Bi4Ti3O12, BaBi4Ti4O15, and Ba2Bi4Ti5O18 were used as building blocks. The present Sillén–Aurivillius oxychlorides have appropriate valence and conduction band levels for visible-light-induced water splitting. DFT calculation for BaBi5Ti3O14Cl (n = 3) and Ba3Bi5Ti5O20Cl (n = 5) indicates that their valence and conduction bands are separated spatially on the perovskite and fluorite layers, respectively. The photocatalytic activity of the three Sillén–Aurivillius oxychlorides is enhanced with increasing the number of the perovskite layers.

  40. Carbon-rich materials with three-dimensional ordering at the angstrom level Peer-reviewed

    Shixin Fa, Masanori Yamamoto, Hirotomo Nishihara, Ryota Sakamoto, Kazuhide Kamiya, Yuta Nishina, Tomoki Ogoshi

    Chemical Science　11　(23)　5866-5873　2020/06

    DOI： 10.1039/d0sc02422h 　

    ISSN： 2041-6520

    eISSN： 2041-6539

  41. 'Click' conjugated porous polymer nanofilm with a large domain size created by a liquid/liquid interfacial protocol. International-journal Peer-reviewed

    Joe Komeda, Ryo Shiotsuki, Amalia Rapakousiou, Ryota Sakamoto, Ryojun Toyoda, Kazuyuki Iwase, Masaki Tsuji, Kazuhide Kamiya, Hiroshi Nishihara

    Chemical communications (Cambridge, England)　56　(25)　3677-3680　2020/03

    DOI： 10.1039/d0cc00360c 　

    More details Close

    A liquid/liquid interfacial method is used to synthesize a conjugated porous polymer nanofilm with a large domain size. Copper-catalyzed azide-alkyne cycloaddition between a triangular terminal alkyne and azide monomers at a water/dichloromethane interface generates a 1,2,3-triazole-linked polymer nanofilm featuring a large aspect ratio and robustness against heat and pH.

  42. Tri- and Tetranuclear Metal-String Complexes with Metallophilic d(10)-d(10) Interactions Peer-reviewed

    Marian Olaru, Julius F. Koegel, Risa Aoki, Ryota Sakamoto, Hiroshi Nishihara, Enno Lork, Stefan Mebs, Matthias Vogt, Jens Beckmann

    CHEMISTRY-A EUROPEAN JOURNAL　26　(1)　275-284　2020/01

    DOI： 10.1002/chem.201904106 　

    ISSN： 0947-6539

    eISSN： 1521-3765

  43. The Accelerating World of Graphdiynes Peer-reviewed

    Ryota Sakamoto, Naoya Fukui, Hiroaki Maeda, Ryota Matsuoka, Ryojun Toyoda, Hiroshi Nishihara

    Advanced Materials　31　(42)　1804211-1804211　2019/10

    DOI： 10.1002/adma.201804211 　

    ISSN： 0935-9648

    eISSN： 1521-4095

  44. Electrochromic triphenylamine-based cobalt(ii) complex nanosheets Peer-reviewed

    Liu, Y., Sakamoto, R., Ho, C.-L., Nishihara, H., Wong, W.-Y.

    Journal of Materials Chemistry C　7　(30)　9159-9166　2019/10

    DOI： 10.1039/c9tc02257k 　

  45. Aurophilicity and Photoluminescence of (6-Diphenylpnicogenoacenaphth-5-yl)gold Compounds Peer-reviewed

    Truong Giang Do, Emanuel Hupf, Enno Lork, Julius F. Koegel, Fabian Mohr, Alex Brown, Ryojun Toyoda, Ryota Sakamoto, Hiroshi Nishihara, Stefan Mebs, Jens Beckmann

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY　58　(5)　647-659　2019/08

    DOI： 10.1002/ejic.201801190 　

    ISSN： 1434-1948

    eISSN： 1099-0682

  46. Interfacial transmetallation synthesis of a platinadithiolene nanosheet as a potential 2D topological insulator Peer-reviewed

    Tigmansu Pal, Shotaro Doi, Hiroaki Maeda, Keisuke Wada, Choon Meng Tan, Naoya Fukui, Ryota Sakamoto, Shinji Tsuneyuki, Sono Sasaki, Hiroshi Nishihara

    CHEMICAL SCIENCE　10　(20)　5218-5225　2019/06

    DOI： 10.1039/C9SC01144G 　

    ISSN： 2041-6520

    eISSN： 2041-6539

  47. Correction: Electrochromic triphenylamine-based cobalt(ii) complex nanosheets

    Yurong Liu, Ryota Sakamoto, Cheuk-Lam Ho, Hiroshi Nishihara, Wai-Yeung Wong

    Journal of Materials Chemistry C　7　(45)　14395-14395　2019

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/c9tc90229e 　

    ISSN： 2050-7526

    eISSN： 2050-7534

    More details Close

    <p>Correction for ‘Electrochromic triphenylamine-based cobalt(<sc>ii</sc>) complex nanosheets’ by Yurong Liu <italic>et al.</italic>, <italic>J. Mater. Chem. C</italic>, 2019, <bold>7</bold>, 9159–9166.</p>

  48. A single-stranded coordination copolymer affords heterostructure observation and photoluminescence intensification Peer-reviewed

    Ryojun, Toyoda, Ryota, Sakamoto, Naoya, Fukui, Ryota, Matsuoka, Mizuho, Tsuchiya, Hiroshi, Nishihara

    Science Advances　5　(1)　eaau0637　2019/01

    DOI： 10.1126/sciadv.aau0637 　

    ISSN： 2375-2548

  49. Pyrazine-incorporated graphdiyne nanofilm as a metal-free electrocatalyst for hydrogen evolution reaction Peer-reviewed

    Ryota Sakamoto, Ryo Shiotsuki, Keisuke Wada, Naoya Fukui, Hiroaki Maeda, Joe Komeda, Ryosuke Sekine, Koji Harano, Hiroshi Nishihara

    J. Mater. Chem. A　6　(44)　22189-22194　2018/09

    DOI： 10.1039/C8TA07347C 　

    ISSN： 2050-7488

    eISSN： 2050-7496

  50. Expansion of the Graphdiyne Family: A Triphenylene-Cored Analogu Peer-reviewed

    Ryota Matsuoka, Ryojun Toyoda, Ryo Shiotsuki, Naoya Fukui, Keisuke Wada, Hiroaki Maeda, Ryota Sakamoto, Sono Sasaki, Hiroyasu Masunaga, Kosuke Nagashio, Hiroshi Nishihara

    ACS Appl. Mater. Interfaces　11　(3)　2730-2733　2018/09

    DOI： 10.1021/acsami.8b00743 　

    ISSN： 1944-8244

    eISSN： 1944-8252

  51. Three-dimensional graphdiyne as a topological nodal-line semimetal Peer-reviewed

    Takafumi Nomura, Tetsuro Habe, Ryota Sakamoto, Mikito Koshino

    PHYSICAL REVIEW MATERIALS　2　(5)　2018/05

    DOI： 10.1103/PhysRevMaterials.2.054204 　

    ISSN： 2475-9953

  52. Dibenzopyrrolo[1,2-a][1,8]naphthyridines: Synthesis and Structural Modification of Fluorescent L-Shaped Heteroarenes Peer-reviewed

    Kotaro Tateno, Rie Ogawa, Ryota Sakamoto, Mizuho Tsuchiya, Noriki Kutsumura, Takashi Otani, Kosuke Ono, Hidetoshi Kawai, Takao Saito

    Journal of Organic Chemistry　83　(2)　690-702　2018/01/19

    DOI： 10.1021/acs.joc.7b02674 　

    ISSN： 1520-6904 0022-3263

  53. Oxidation-promoted interfacial synthesis of redox-active bis(diimino)nickel nanosheet Peer-reviewed

    Eunice J H Phua, Kuo-Hui Wu, Keisuke Wada, Tetsuro Kusamoto, Hiroaki Maeda, Jian Cao, Ryota Sakamoto, Hiroyasu Masunaga, Sono Sasaki, Jia-Wei Mei, Wei Jiang, Feng Liu, Hiroshi Nishihara

    Chemistry Letters　47　(2)　126-129　2018

    DOI： 10.1246/cl.170928 　

    ISSN： 1348-0715 0366-7022

  54. Bis(aminothiolato)nickel nanosheet as a redox switch for conductivity and an electrocatalyst for the hydrogen evolution reaction Peer-reviewed

    Xinsen Sun, Kuo-Hui Wu, Ryota Sakamoto, Tetsuro Kusamoto, Hiroaki Maeda, Xiaojuan Ni, Wei Jiang, Feng Liu, Sono Sasaki, Hiroyasu Masunaga, Hiroshi Nishihara

    CHEMICAL SCIENCE　8　(12)　8078-8085　2017/12

    DOI： 10.1039/c7sc02688a 　

    ISSN： 2041-6520

    eISSN： 2041-6539

  55. Bis(dipyrrinato)zinc(II) Complex Chiroptical Wires: Exfoliation into Single Strands and Intensification of Circularly Polarized Luminescence Peer-reviewed

    Risa Aoki, Ryojun Toyoda, Julius F. Koegel, Ryota Sakamoto, Jatish Kumar, Yasutaka Kitagawa, Koji Harano, Tsuyoshi Kawai, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　139　(45)　16024-16027　2017/11

    DOI： 10.1021/jacs.7b07077 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  56. Theoretical study on S-1 and T-1 states of homoleptic bis(dipyrrinato)zinc (II) model complex Peer-reviewed

    Mizuki Asaoka, Yasutaka Kitagawa, Rena Teramoto, Koji Miyagi, Yoshiki Natori, Ryota Sakamoto, Hiroshi Nishihara, Masayoshi Nakano

    POLYHEDRON　136　113-116　2017/11

    DOI： 10.1016/j.poly.2017.01.058 　

    ISSN： 0277-5387

  57. Interfacial synthesis of electrofunctional coordination nanowires and nanosheets of bis(terpyridine) complexes Peer-reviewed

    Hiroaki Maeda, Ryota Sakamoto, Hiroshi Nishihara

    COORDINATION CHEMISTRY REVIEWS　346　139-149　2017/09

    DOI： 10.1016/j.ccr.2017.02.013 　

    ISSN： 0010-8545

    eISSN： 1873-3840

  58. Mechano-, thermo-, solvato-, and vapochromism in bis(acetato-kappa O-1)[4 '-(4-(diphenylamino)phenyl)](2,2 ': 60,2 ''-terpyridine-kappa(3) N, N ', N '') zinc(II) and its polymer Peer-reviewed

    Takamasa Tsukamoto, Risa Aoki, Ryota Sakamoto, Ryojun Toyoda, Masaki Shimada, Yohei Hattori, Yasutaka Kitagawa, Eiji Nishibori, Masayoshi Nakano, Hiroshi Nishihara

    CHEMICAL COMMUNICATIONS　53　(70)　9805-9808　2017/09

    DOI： 10.1039/c7cc05022d 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  59. Conducting p-conjugated bis(iminothiolato)nickel nanosheet Peer-reviewed

    Sun, X., Wu, K.-H., Sakamoto, R., Kusamoto, T., Maeda, H., Nishihara, H.

    Chemistry Letters　46　(8)　1072-1075　2017/08

    Publisher: The Chemical Society of Japan

    DOI： 10.1246/cl.170382 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  60. β-IminoBODIPY oligomers: Facilely accessible π-conjugated luminescent BODIPY arrays Peer-reviewed

    Tsuchiya, M., Sakamoto, R., Shimada, M., Yamanoi, Y., Hattori, Y., Sugimoto, K., Nishibori, E., Nishihara, H.

    Chemical Communications　53　(54)　7509-7512　2017/06

    Publisher: ROYAL SOC CHEMISTRY

    DOI： 10.1039/c7cc03279j 　

    ISSN： 1364-548X

  61. Liquid/Liquid Interfacial Synthesis of a Click Nanosheet Peer-reviewed

    Amalia Rapakousiou, Ryota Sakamoto, Ryo Shiotsuki, Ryota Matsuoka, Ukyo Nakajima, Tigmansu Pal, Rintaro Shimada, Amran Hossain, Hiroyasu Masunaga, Satoshi Horike, Yasutaka Kitagawa, Sono Sasaki, Kenichi Kato, Takeaki Ozawa, Didier Astruc, Hiroshi Nishihara

    CHEMISTRY-A EUROPEAN JOURNAL　23　(35)　8443-8449　2017/06

    DOI： 10.1002/chem.201700201 　

    ISSN： 0947-6539

    eISSN： 1521-3765

  62. Coordination nanosheets (CONASHs): strategies, structures and functions Peer-reviewed

    Ryota Sakamoto, Kenji Takada, Tigmansu Pal, Hiroaki Maeda, Tetsuya Kambe, Hiroshi Nishihara

    CHEMICAL COMMUNICATIONS　53　(43)　5781-5801　2017/05

    DOI： 10.1039/c7cc00810d 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  63. A simple zinc(II) complex that features multi-functional luminochromism induced by reversible ligand dissociation Peer-reviewed

    Takamasa Tsukamoto, Risa Aoki, Ryota Sakamoto, Ryojun Toyoda, Masaki Shimada, Yohei Hattori, Mizuki Asaoka, Yasutaka Kitagawa, Eiji Nishibori, Masayoshi Nakano, Hiroshi Nishihara

    CHEMICAL COMMUNICATIONS　53　(26)　3657-3660　2017/04

    DOI： 10.1039/c6cc10190a 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  64. Coordination Nanosheets Based on Terpyridine-Zinc(II) Complexes: As Photoactive Host Materials Peer-reviewed

    Takamasa Tsukamoto, Kenji Takada, Ryota Sakamoto, Ryota Matsuoka, Ryojun Toyoda, Hiroaki Maeda, Toshiki Yagi, Michihiro Nishikawa, Naoaki Shinjo, Shuntaro Amano, Tadashi Iokawa, Narutaka Ishibashi, Tsugumi Oi, Koshiro Kanayama, Rina Kinugawa, Yoichiro Koda, Toshiyuki Komura, Shuhei Nakajima, Ryota Fukuyama, Nobuyuki Fuse, Makoto Mizui, Masashi Miyasaki, Yutaro Yamashita, Kuni Yamada, Wenxuan Zhang, Ruocheng Han, Wenyu Liu, Taro Tsubomura, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　139　(15)　5359-5366　2017/04

    DOI： 10.1021/jacs.6b12810 　

    ISSN： 0002-7863

  65. A simple zinc(II) complex that features multi-functional luminochromism induced by reversible ligand dissociation Peer-reviewed

    Tsukamoto, T., Aoki, R., Sakamoto, R., Toyoda, R., Shimada, M., Hattori, Y., Asaoka, M., Kitagawa, Y., Nishibori, E., Nakano, M., Nishihara, H.

    Chemical Communications　53　(26)　3657-3660　2017/03

    Publisher: ROYAL SOC CHEMISTRY

    DOI： 10.1039/c6cc10190a 　

    ISSN： 1364-548X

  66. Crystalline Graphdiyne Nanosheets Produced at a Gas/Liquid or Liquid/Liquid Interface Peer-reviewed

    Ryota Matsuoka, Ryota Sakamoto, Ken Hoshiko, Sono Sasaki, Hiroyasu Masunaga, Kosuke Nagashio, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　139　(8)　3145-3152　2017/03

    DOI： 10.1021/jacs.6b12776 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  67. Photofunctionality in Porphyrin-Hybridized Bis(dipyrrinato)zinc(II) Complex Micro- and Nanosheets Peer-reviewed

    Ryota Sakamoto, Toshiki Yagi, Ken Hoshiko, Shinpei Kusaka, Ryota Matsuoka, Hiroaki Maeda, Zheng Liu, Qian Liu, Wai-Yeung Wong, Hiroshi Nishihara

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　56　(13)　3526-3530　2017/03

    DOI： 10.1002/ange.201611785 　

    ISSN： 1433-7851

    eISSN： 1521-3773

  68. Bottom-up Creation of Functional Low-Dimensional Materials Based on Metal Complexes Peer-reviewed

    Ryota Sakamoto

    BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN　90　(3)　272-278　2017/03

    DOI： 10.1246/bcsj.20160304 　

    ISSN： 0009-2673

    eISSN： 1348-0634

  69. Electron transport of bis(terpyridine)iron(II) complex wires on a semiconducting electrode Peer-reviewed

    Hiroaki Maeda, Ryota Sakamoto, Hiroshi Nishihara

    JOURNAL OF ELECTROANALYTICAL CHEMISTRY　779　112-116　2016/10

    DOI： 10.1016/j.jelechem.2016.04.027 　

    ISSN： 1572-6657

    eISSN： 1873-2569

  70. The coordination nanosheet (CONASH) Peer-reviewed

    Ryota Sakamoto, Kenji Takada, Xinsen Sun, Tigmansu Pal, Takamasa Tsukamoto, Eunice Jia Han Phua, Amalia Rapakousiou, Ken Hoshiko, Hiroshi Nishihara

    COORDINATION CHEMISTRY REVIEWS　320　118-128　2016/08

    DOI： 10.1016/j.ccr.2015.12.001 　

    ISSN： 0010-8545

    eISSN： 1873-3840

  71. Bis(dipyrrinato)zinc(II) Complexes: Emission in the Solid State Peer-reviewed

    Mizuho Tsuchiya, Ryota Sakamoto, Masaki Shimada, Yoshinori Yamanoi, Yohei Hattori, Kunihisa Sugimoto, Eiji Nishibori, Hiroshi Nishihara

    INORGANIC CHEMISTRY　55　(12)　5732-5734　2016/06

    DOI： 10.1021/acs.inorgchem.6b00431 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  72. Dissymmetric Bis(dipyrrinato)zinc(II) Complexes: Rich Variety and Bright Red to Near-Infrared Luminescence with a Large Pseudo-Stokes Shift Peer-reviewed

    Ryota Sakamoto, Toshiki Iwashima, Julius F. Koegel, Shinpei Kusaka, Mizuho Tsuchiya, Yasutaka Kitagawa, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　138　(17)　5666-5677　2016/05

    DOI： 10.1021/jacs.6b02128 　

    ISSN： 0002-7863

  73. Coordination Programming of Two-Dimensional Metal Complex Frameworks Peer-reviewed

    Hiroaki Maeda, Ryota Sakamoto, Hiroshi Nishihara

    LANGMUIR　32　(11)　2527-2538　2016/03

    DOI： 10.1021/acs.langmuir.6b00156 　

    ISSN： 0743-7463

  74. Synthesis and Visible-Light Photochromism of a Donor-Acceptor Type of Dimethyl 2,3-bis(arylethynyl)fumarate

    Ryota Sakamoto and

    International Journal of Chemical Engineering and Applications　7　(1)　52-55　2016/02

    Publisher: {EJournal} Publishing

    DOI： 10.7763/ijcea.2016.v7.541 　

    ISSN： 2010-0221

    eISSN： 2010-0221

  75. Bright Solid-State Emission of Disilane-Bridged Donor-Acceptor-Donor and Acceptor-Donor-Acceptor Chromophores Peer-reviewed

    Masaki Shimada, Mizuho Tsuchiya, Ryota Sakamoto, Yoshinori Yamanoi, Eiji Nishibori, Kunihisa Sugimoto, Hiroshi Nishihara

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　55　(9)　3022-3026　2016/02

    DOI： 10.1002/anie.201509380 　

    ISSN： 1433-7851

    eISSN： 1521-3773

  76. Electron Transport Behavior Analysis of Bis(terpyridine) Metal Complex Wires on Electrodes Peer-reviewed

    H. Maeda, R. Sakamoto, H. Nishihara

    LOW-DIMENSIONAL NANOSCALE ELECTRONIC AND PHOTONIC DEVICES 9　75　(11)　17-24　2016

    DOI： 10.1149/07511.0017ecst 　

    ISSN： 1938-5862

  77. Heteroleptic [Bis(oxazoline)](dipyrrinato)zinc(II) Complexes: Bright and Circularly Polarized Luminescence from an Originally Achiral Dipyrrinato Ligand Peer-reviewed

    Julius F. Koegel, Shinpei Kusaka, Ryota Sakamoto, Toshiki Iwashima, Mizuho Tsuchiya, Ryojun Toyoda, Ryota Matsuoka, Takamasa Tsukamoto, Junpei Yuasa, Yasutaka Kitagawa, Tsuyoshi Kawai, Hiroshi Nishihara

    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION　55　(4)　1377-1381　2016/01

    DOI： 10.1002/anie.201509411 　

    ISSN： 1433-7851

    eISSN： 1521-3773

  78. Electrochemical fabrication of one-dimensional porphyrinic wires on electrodes Peer-reviewed

    Suzaliza Mustafar, Kuo-Hui Wu, Ryojun Toyoda, Kenji Takada, Hiroaki Maeda, Mariko Miyachi, Ryota Sakamoto, Hiroshi Nishihara

    INORGANIC CHEMISTRY FRONTIERS　3　(3)　370-375　2016

    DOI： 10.1039/c5qi00239g 　

    ISSN： 2052-1553

  79. Rapid Electron Transport Phenomenon in the Bis(terpyridine) Metal Complex Wire: Marcus Theory and Electrochemical Impedance Spectroscopy Study Peer-reviewed

    Hiroaki Maeda, Ryota Sakamoto, Hiroshi Nishihara

    JOURNAL OF PHYSICAL CHEMISTRY LETTERS　6　(19)　3821-3826　2015/10

    DOI： 10.1021/acs.jpclett.5b01725 　

    ISSN： 1948-7185

  80. Bis(terpyridine)iron(II) Complex Wires with a Bithiophene Linker for Superior Long-range Electron Transport Peer-reviewed

    Aayushi Bajpayee, Hiroaki Maeda, Shunsuke Katagiri, Ryota Sakamoto, Hiroshi Nishihara

    CHEMISTRY LETTERS　44　(9)　1211-1213　2015/09

    DOI： 10.1246/cl.150519 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  81. Interfacial Synthesis of Electrically Conducting Palladium Bis(dithiolene) Complex Nanosheet Peer-reviewed

    Tigmansu Pal, Tetsuya Kambe, Tetsuro Kusamoto, Maw Lin Foo, Ryota Matsuoka, Ryota Sakamoto, Hiroshi Nishihara

    CHEMPLUSCHEM　80　(8)　1255-1258　2015/08

    DOI： 10.1002/cplu.201500206 　

    ISSN： 2192-6506

  82. Modulation of Electronic State of -Conjugated Nickelladithiolene Complex Nanosheet Peer-reviewed

    Kambe Tetsuya, Kusamoto Tetsuro, Sakamoto Ryota, Nishihara Hiroshi

    MACROMOLECULAR SYMPOSIA　351　(1)　78-80　2015/05

    DOI： 10.1002/masy.201300127 　

    ISSN： 1022-1360

    eISSN： 1521-3900

  83. A photofunctional bottom-up bis(dipyrrinato)zinc(II) complex nanosheet Peer-reviewed

    Ryota Sakamoto, Ken Hoshiko, Qian Liu, Toshiki Yagi, Tatsuhiro Nagayama, Shinpei Kusaka, Mizuho Tsuchiya, Yasutaka Kitagawa, Wai-Yeung Wong, Hiroshi Nishihara

    NATURE COMMUNICATIONS　6　2015/04

    DOI： 10.1038/ncomms7713 　

    ISSN： 2041-1723

  84. Electrochromic Bis(terpyridine)metal Complex Nanosheets Peer-reviewed

    Kenji Takada, Ryota Sakamoto, Shi-Ting Yi, Shunsuke Katagiri, Tetsuya Kambe, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　137　(14)　4681-4689　2015/04

    DOI： 10.1021/ja510788b 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  85. Electron Transport Dynamics in Redox-Molecule-Terminated Branched Oligomer Wires on Au(111) Peer-reviewed

    Ryota Sakamoto, Shunsuke Katagiri, Hiroaki Maeda, Yoshihiko Nishimori, Seiji Miyashita, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　137　(2)　734-741　2015/01

    DOI： 10.1021/ja509470w 　

    ISSN： 0002-7863

  86. Meso-N-arylamino- and N,N-diarylaminoporphyrinoids: Syntheses, properties and applications Peer-reviewed

    Ryota Sakamoto, Suzaliza Mustafar, Hiroshi Nishihara

    JOURNAL OF PORPHYRINS AND PHTHALOCYANINES　19　(1-3)　21-31　2015/01

    DOI： 10.1142/S1088424615500091 　

    ISSN： 1088-4246

    eISSN： 1099-1409

  87. Bis(dipyrrinato) metal(II) coordination polymers: crystallization, exfoliation into single wires, and electric conversion ability Peer-reviewed

    Ryota Matsuoka, Ryojun Toyoda, Ryota Sakamoto, Mizuho Tsuchiya, Ken Hoshiko, Tatsuhiro Nagayama, Yoshiyuki Nonoguchi, Kunihisa Sugimoto, Eiji Nishibori, Tsuyoshi Kawai, Hiroshi Nishihara

    CHEMICAL SCIENCE　6　(5)　2853-2858　2015

    DOI： 10.1039/c5sc00273g 　

    ISSN： 2041-6520

    eISSN： 2041-6539

  88. Synthesis, characterization, and physical properties of oligo(1-(N,N-dimethylamino)pyrrole)s and their doped forms, precursors of candidates for molecular flat-band ferromagnets Peer-reviewed

    Yoshinori Yamanoi, Kazuhiro Takahashi, Takeshi Hamada, Norikazu Ohshima, Masashi Kurashina, Yohei Hattori, Tetsuro Kusamoto, Ryota Sakamoto, Mariko Miyachi, Hiroshi Nishihara

    JOURNAL OF MATERIALS CHEMISTRY C　3　(17)　4316-4320　2015

    DOI： 10.1039/c4tc02941k 　

    ISSN： 2050-7526

    eISSN： 2050-7534

  89. New aspects in bis and tris(dipyrrinato) metal complexes: bright luminescence, self-assembled nanoarchitectures, and materials applications Peer-reviewed

    Ryota Sakamoto, Toshiki Iwashima, Mizuho Tsuchiya, Ryojun Toyoda, Ryota Matsuoka, Julius F. Koegel, Shinpei Kusaka, Ken Hoshiko, Toshiki Yagi, Tatsuhiro Nagayama, Hiroshi Nishihara

    JOURNAL OF MATERIALS CHEMISTRY A　3　(30)　15357-15371　2015

    DOI： 10.1039/c5ta02040a 　

    ISSN： 2050-7488

    eISSN： 2050-7496

  90. Heteroleptic bis(dipyrrinato)copper(II) and nickel(II) complexes Peer-reviewed

    Ryojun Toyoda, Mizuho Tsuchiya, Ryota Sakamoto, Ryota Matsuoka, Kuo-Hui Wu, Yohei Hattori, Hiroshi Nishihara

    DALTON TRANSACTIONS　44　(34)　15103-15106　2015

    DOI： 10.1039/c5dt00724k 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  91. pi-Conjugated bis(terpyridine) metal complex molecular wires Peer-reviewed

    Ryota Sakamoto, Kuo-Hui Wu, Ryota Matsuoka, Hiroaki Maeda, Hiroshi Nishihara

    CHEMICAL SOCIETY REVIEWS　44　(21)　7698-7714　2015

    DOI： 10.1039/c5cs00081e 　

    ISSN： 0306-0012

    eISSN： 1460-4744

  92. Crystal structure of (Z)-1-(ferrocenylethynyl)-10-(phenylimino)anthracen-9(10H)-one from synchrotron X-ray powder diffraction Peer-reviewed

    Nishibori, E., Aoyagi, S., Sakata, M., Sakamoto, R., Nishihara, H.

    Acta Crystallographica Section E: Structure Reports Online　70　(12)　573-576　2014/12

    Publisher: International Union of Crystallography (IUCr)

    DOI： 10.1107/S1600536814025252 　

    eISSN： 1600-5368

  93. Redox Control and High Conductivity of Nickel Bis(dithiolene) Complex pi-Nanosheet: A Potential Organic Two-Dimensional Topological Insulator Peer-reviewed

    Tetsuya Kambe, Ryota Sakamoto, Tetsuro Kusamoto, Tigmansu Pal, Naoya Fukui, Ken Hoshiko, Takahiro Shimojima, Zhengfei Wang, Toru Hirahara, Kyoko Ishizaka, Shuji Hasegawa, Feng Liu, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　136　(41)　14357-14360　2014/10

    DOI： 10.1021/ja507619d 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  94. Acid-Responsive Fluorescent Compounds Based on Nitro-Group-Substituted L-Shaped Pentacycles, Pyrrolo[1,2-a][1,8]naphthylidines Peer-reviewed

    Kotaro Tateno, Rie Ogawa, Ryota Sakamoto, Mizuho Tsuchiya, Takashi Otani, Takao Saito

    ORGANIC LETTERS　16　(12)　3212-3215　2014/06

    DOI： 10.1021/ol501226x 　

    ISSN： 1523-7060

    eISSN： 1523-7052

  95. Luminescent Heteroleptic Tris(dipyrrinato)indium(III) Complexes Peer-reviewed

    Shinpei Kusaka, Ryota Sakamoto, Hiroshi Nishihara

    INORGANIC CHEMISTRY　53　(7)　3275-3277　2014/04

    DOI： 10.1021/ic500326u 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  96. Reactivity and Electronic Properties of a Ferrocene Molecule Bearing an N,C-Chelated BMes(2) Unit Peer-reviewed

    Ying-Li Rao, Tetsuro Kusamoto, Ryota Sakamoto, Hiroshi Nishihara, Suning Wang

    ORGANOMETALLICS　33　(7)　1787-1793　2014/04

    DOI： 10.1021/om500138f 　

    ISSN： 0276-7333

    eISSN： 1520-6041

  97. Surface-Junction Effects on Interfacial Electron Transfer between Bis(terpyridine)iron(II) and Hydrogen-Terminated Silicon(111) Electrode Peer-reviewed

    Hiroaki Maeda, Ryota Sakamoto, Hiroshi Nishihara

    CHEMISTRY-A EUROPEAN JOURNAL　20　(10)　2761-2764　2014/03

    DOI： 10.1002/chem.201304588 　

    ISSN： 0947-6539

    eISSN： 1521-3765

  98. Fabrication of Dense and Multilayered Films of a Nickel Bis(dithiolene) Nanosheet by Means of the Langmuir-Schafer Method Peer-reviewed

    Ken Hoshiko, Tetsuya Kambe, Ryota Sakamoto, Kenji Takada, Hiroshi Nishihara

    CHEMISTRY LETTERS　43　(2)　252-253　2014/02

    DOI： 10.1246/cl.130882 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  99. Asymmetric dinuclear bis(dipyrrinato)zinc(II) complexes: broad absorption and unidirectional quantitative exciton transmission Peer-reviewed

    Mizuho Tsuchiya, Ryota Sakamoto, Shinpei Kusaka, Yasutaka Kitagawa, Mitsutaka Okumura, Hiroshi Nishihara

    CHEMICAL COMMUNICATIONS　50　(44)　5881-5883　2014

    DOI： 10.1039/c4cc01573h 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  100. Ordered alignment of a one-dimensional pi-conjugated nickel bis(dithiolene) complex polymer produced via interfacial reactions Peer-reviewed

    Ryota Matsuoka, Ryota Sakamoto, Tetsuya Kambe, Kenji Takada, Tetsuro Kusamoto, Hiroshi Nishihara

    CHEMICAL COMMUNICATIONS　50　(60)　8137-8139　2014

    DOI： 10.1039/c4cc02022g 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  101. Comparative Study of Photochromic Ferrocene-Conjugated Dimethyldihydropyrene Derivatives Peer-reviewed

    Satoshi Muratsugu, Masa-aki Kishida, Ryota Sakamoto, Hiroshi Nishihara

    CHEMISTRY-A EUROPEAN JOURNAL　19　(51)　17314-17327　2013/12

    DOI： 10.1002/chem.201303456 　

    ISSN： 0947-6539

    eISSN： 1521-3765

  102. Orthogonal bis(terpyridine)-Fe(ii) metal complex oligomer wires on a tripodal scaffold: Rapid electron transport Peer-reviewed

    Ryota Sakamoto, Yuuki Ohirabaru, Ryota Matsuoka, Hiroaki Maeda, Shunsuke Katagiri, Hiroshi Nishihara

    Chemical Communications　49　(64)　7108-7110　2013/08/18

    DOI： 10.1039/c3cc42478b 　

    ISSN： 1359-7345 1364-548X

  103. Metal complex oligomer and polymer wires on electrodes: Tactical constructions and versatile functionalities Peer-reviewed

    Hiroaki Maeda, Ryota Sakamoto, Hiroshi Nishihara

    POLYMER　54　(17)　4383-4403　2013/08

    DOI： 10.1016/j.polymer.2013.04.019 　

    ISSN： 0032-3861

    eISSN： 1873-2291

  104. 1,4-Bis[2-(4-ferrocenylphenyl)ethynyl]anthraquinone from synchrotron X-ray powder diffraction Peer-reviewed

    Maki Sachiko, Eiji Nishibori, Shinobu Aoyagi, Makoto Sakata, Masaki Takata, Mio Kondo, Masaki Murata, Ryota Sakamoto, Hiroshi Nishihara

    ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS　69　696-+　2013/07

    DOI： 10.1107/S0108270113013978 　

    ISSN： 0108-2701

  105. π-conjugated trinuclear group-9 metalladithiolenes with a triphenylene backbone Peer-reviewed

    Ryota Sakamoto, Tetsuya Kambe, Satoru Tsukada, Kenji Takada, Ken Hoshiko, Yasutaka Kitagawa, Mitsutaka Okumura, Hiroshi Nishihara

    Inorganic Chemistry　52　(13)　7411-7416　2013/07

    DOI： 10.1021/ic400110z 　

    ISSN： 0020-1669 1520-510X

  106. Bis(terpyridine) metal complex wires: Excellent long-range electron transfer ability and controllable intrawire redox conduction on silicon electrode Peer-reviewed

    Ryota Sakamoto, Shunsuke Katagiri, Hiroaki Maeda, Hiroshi Nishihara

    COORDINATION CHEMISTRY REVIEWS　257　(9-10)　1493-1506　2013/05

    DOI： 10.1016/j.ccr.2012.08.025 　

    ISSN： 0010-8545

  107. Triarylamine-Conjugated Bis(dipyrrinato)zinc(II) Complexes: Impact of Triarylamine on Photochemical Property and Multi-Redox Reaction Peer-reviewed

    Mizuho Tsuchiya, Ryota Sakamoto, Shinpei Kusaka, Junko Kakinuma, Hiroshi Nishihara

    ELECTROCHEMISTRY　81　(5)　337-339　2013/05

    DOI： 10.5796/electrochemistry.81.337 　

    ISSN： 1344-3542

  108. Triarylamine-conjugated Bis(terpyridine)-Iron(II) Complex Wires: Rapid and Long-range Electron-transport Ability Peer-reviewed

    Ryota Sakamoto, Shunsuke Katagiri, Hiroaki Maeda, Hiroshi Nishihara

    CHEMISTRY LETTERS　42　(5)　553-555　2013/05

    DOI： 10.1246/cl.130083 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  109. meso-Alkynyl BODIPYs: Structure, Photoproperties, -Extension, and Manipulation of Frontier Orbitals Peer-reviewed

    Shinpei Kusaka, Ryota Sakamoto, Yasutaka Kitagawa, Mitsutaka Okumura, Hiroshi Nishihara

    CHEMISTRY-AN ASIAN JOURNAL　8　(4)　723-727　2013/04

    DOI： 10.1002/asia.201201176 　

    ISSN： 1861-4728

  110. Terminal Redox-Site Effect on the Long-Range Electron Conduction of Fe(tpy)(2) Oligomer Wires on a Gold Electrode Peer-reviewed

    Shunsuke Katagiri, Ryota Sakamoto, Hiroaki Maeda, Yoshihiko Nishimori, Tomochika Kurita, Hiroshi Nishihara

    CHEMISTRY-A EUROPEAN JOURNAL　19　(16)　5088-5096　2013/04

    DOI： 10.1002/chem.201203913 　

    ISSN： 0947-6539

    eISSN： 1521-3765

  111. Coordination Programming of Photofunctional Molecules Peer-reviewed

    Ryota Sakamoto, Shinpei Kusaka, Mikihiro Hayashi, Michihiro Nishikawa, Hiroshi Nishihara

    MOLECULES　18　(4)　4091-4119　2013/04

    DOI： 10.3390/molecules18044091 　

    ISSN： 1420-3049

    eISSN： 1420-3049

  112. Efficient Electronic Communication in 4,9-Bis(ferrocenylethynyl)dimethyldihydropyrene Peer-reviewed

    Masa-aki Kishida, Satoshi Muratsugu, Ryota Sakamoto, Tetsuro Kusamoto, Hiroshi Nishihara

    CHEMISTRY LETTERS　42　(4)　361-362　2013/04

    DOI： 10.1246/cl.121264 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  113. Bis[(E)-2,6-bis(1H-pyrazol-1-yl)-4-styrylpyridine]iron(II) Complex: Relationship between Thermal Spin Crossover and Crystal Solvent Peer-reviewed

    Yuta Hasegawa, Ryota Sakamoto, Kazuhiro Takahashi, Hiroshi Nishihara

    INORGANIC CHEMISTRY　52　(3)　1658-1665　2013/02

    DOI： 10.1021/ic302640m 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  114. pi-Conjugated Nickel Bis(dithiolene) Complex Nanosheet Peer-reviewed

    Tetsuya Kambe, Ryota Sakamoto, Ken Hoshiko, Kenji Takada, Mariko Miyachi, Ji-Heun Ryu, Sono Sasaki, Jungeun Kim, Kazuo Nakazato, Masaki Takata, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　135　(7)　2462-2465　2013/02

    DOI： 10.1021/ja312380b 　

    ISSN： 0002-7863

  115. Electrochromic and Photochromic Properties

    Sakamoto, R., Nishihara, H.

    Comprehensive Inorganic Chemistry II (Second Edition): From Elements to Applications　8　2013

    DOI： 10.1016/B978-0-08-097774-4.00814-7 　

  116. Two-way Linkage Photoisomerization of [Ru(2,2 ':6 ',2 ''-terpyridine)(6-{(methylsulfinyl)methyl}picolinate)BF4 Peer-reviewed

    Shoko Suzuki, Ryota Sakamoto, Hiroshi Nishihara

    CHEMISTRY LETTERS　42　(1)　17-18　2013/01

    DOI： 10.1246/cl.2013.17 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  117. Intramolecular [2+2+2] cycloaddition of bis(propargylphenyl)carbodiimides: synthesis of L-shaped pi-extended compounds with pyrrolo[1,2-a][1,8]naphthyridine corner units Peer-reviewed

    Takashi Otani, Takao Saito, Ryota Sakamoto, Hiroyuki Osada, Akihito Hirahara, Naoki Furukawa, Noriki Kutsumura, Tsukasa Matsuo, Kohei Tamao

    CHEMICAL COMMUNICATIONS　49　(55)　6206-6208　2013

    DOI： 10.1039/c3cc42792g 　

    ISSN： 1359-7345

  118. A bis(terpyridine)iron network polymer on carbon for a potential energy storage material Peer-reviewed

    Kuo-Hui Wu, Hiroaki Maeda, Tetsuya Kambe, Ken Hoshiko, Eunice Jia Han Phua, Ryota Sakamoto, Hiroshi Nishihara

    DALTON TRANSACTIONS　42　(45)　15877-15880　2013

    DOI： 10.1039/c3dt51186c 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  119. A New Method To Generate Arene-Terminated Si(111) and Ge(111) Surfaces via a Palladium-Catalyzed Arylation Reaction Peer-reviewed

    Yoshinori Yamanoi, Junya Sendo, Tetsuhiro Kobayashi, Hiroaki Maeda, Yusuke Yabusaki, Mariko Miyachi, Ryota Sakamoto, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　134　(50)　20433-20439　2012/12

    DOI： 10.1021/ja308606t 　

    ISSN： 0002-7863

  120. Ferrocene-Dithiolene Hybrids: Control of Strong Donor-Acceptor Electronic Communication to Reverse the Charge Transfer Direction Peer-reviewed

    Tetsuro Kusamoto, Kenji Takada, Ryota Sakamoto, Shoko Kume, Hiroshi Nishihara

    INORGANIC CHEMISTRY　51　(22)　12102-12113　2012/11

    DOI： 10.1021/ic300581a 　

    ISSN： 0020-1669

  121. Synthesis and Electron Transfer Properties of Metal Complex Oligomer Wires with an Inherent Potential Gradient on Gold Electrode Peer-reviewed

    Yoshihiko Nishimori, Hiroaki Maeda, Shunsuke Katagiri, Junya Sendo, Mariko Miyachi, Ryota Sakamoto, Yoshinori Yamanoi, Hiroshi Nishihara

    MACROMOLECULAR SYMPOSIA　317　(1)　276-285　2012/08

    DOI： 10.1002/masy.201200016 　

    ISSN： 1022-1360

    eISSN： 1521-3900

  122. Extremely Efficient and Reversible Visible-Light Photochromism and Accompanying Switch of Electronic Communication in N-Phenylcarbazole-Appended Diethynylethene Peer-reviewed

    Mikihiro Hayashi, Ryota Sakamoto, Hiroshi Nishihara

    CHEMISTRY-A EUROPEAN JOURNAL　18　(28)　8610-8613　2012/07

    DOI： 10.1002/chem.201200794 　

    ISSN： 0947-6539

    eISSN： 1521-3765

  123. An Extremely Bright Heteroleptic Bis(dipyrrinato)zinc(II) Complex Peer-reviewed

    Shinpei Kusaka, Ryota Sakamoto, Yasutaka Kitagawa, Mitsutaka Okumura, Hiroshi Nishihara

    CHEMISTRY-AN ASIAN JOURNAL　7　(5)　907-910　2012/05

    DOI： 10.1002/asia.201200131 　

    ISSN： 1861-4728

  124. Solid-State Ligand-Driven Light-Induced Spin Change at Ambient Temperatures in Bis(dipyrazolylstyrylpyridine)iron(II) Complexes Peer-reviewed

    Kazuhiro Takahashi, Yuta Hasegawa, Ryota Sakamoto, Michihiro Nishikawa, Shoko Kume, Eiji Nishibori, Hiroshi Nishihara

    INORGANIC CHEMISTRY　51　(9)　5188-5198　2012/05

    DOI： 10.1021/ic300030b 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  125. Benzenedithiolate-bridged Rh2W and RhW Cluster Complexes: Synthesis, Properties, and Formation Mechanism Peer-reviewed

    Satoru Tsukada, Ryota Sakamoto, Hiroshi Nishihara

    CHEMISTRY LETTERS　41　(4)　357-359　2012/04

    DOI： 10.1246/cl.2012.357 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  126. Ir3Co6 and Co3Fe3 Dithiolene Cluster Complexes: Multiple Metal-Metal Bond Formation and Correlation between Structure and Internuclear Electronic Communication Peer-reviewed

    Satoru Tsukada, Yusuke Shibata, Ryota Sakamoto, Tetsuya Kambe, Tomoji Ozeki, Hiroshi Nishihara

    INORGANIC CHEMISTRY　51　(3)　1228-1230　2012/02

    DOI： 10.1021/ic202548g 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  127. Photoactive multinuclear metal-containing polymeric systems

    Sakamoto, R., Nishihara, H.

    RSC Polymer Chemistry Series　2012

    Publisher: RSC Polymer Chemistry Series

  128. Multinuclear metalladithiolenes: focusing on electronic communication in mixed-valent states Peer-reviewed

    Ryota Sakamoto, Satoru Tsukada, Hiroshi Nishihara

    DALTON TRANSACTIONS　41　(34)　10123-10135　2012

    DOI： 10.1039/c2dt30787a 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  129. Fluorescent azadipyrrinato zinc(II) complex: hybridisation with a dipyrrinato ligand Peer-reviewed

    Ryota Sakamoto, Shinpei Kusaka, Yasutaka Kitagawa, Masa-aki Kishida, Mikihiro Hayashi, Yusuke Takara, Mizuho Tsuchiya, Junko Kakinuma, Takuma Takeda, Keisuke Hirata, Tomoya Ogino, Keisuke Kawahara, Toshiki Yagi, Shu Ikehira, Tomoya Nakamura, Mayuko Isomura, Mikoto Toyama, Saki Ichikawa, Mitsutaka Okumura, Hiroshi Nishihara

    DALTON TRANSACTIONS　41　(46)　14035-14037　2012

    DOI： 10.1039/c2dt32039h 　

    ISSN： 1477-9226

    eISSN： 1477-9234

  130. Benzo[e]pyrene Skeleton Dipyrylium Dication with a Strong Donor-Acceptor-Donor Interaction, and Its Two-Electron Reduced Molecule Peer-reviewed

    Koya Prabhakara Rao, Mio Kondo, Ryota Sakamoto, Tetsuro Kusamoto, Michihiro Nishikawa, Shoko Kume, Masayuki Nihei, Hiroki Oshio, Hiroshi Nishihara

    CHEMISTRY-A EUROPEAN JOURNAL　17　(50)　14010-14019　2011/12

    DOI： 10.1002/chem.201101708 　

    ISSN： 0947-6539

  131. Arylethynylanthraquinone and Bis(arylethynyl)anthraquinone: Strong Donor-Acceptor Interaction and Proton-induced Cyclization to Form Pyrylium and Dipyrylium Salts Peer-reviewed

    Ryota Sakamoto, Koya Prabhakara Rao, Hiroshi Nishihara

    CHEMISTRY LETTERS　40　(12)　1316-1326　2011/12

    DOI： 10.1246/cl.2011.1316 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  132. Protonation-induced Cyclization of 1,8-Bis(arylethynyl)anthraquinones: Monopyrylium Salt Formation and Intensification of Donor-Acceptor Interaction Peer-reviewed

    Koya Prabhakara Rao, Mio Kondo, Ryota Sakamoto, Tetsuro Kusamoto, Shoko Kume, Hiroshi Nishihara

    CHEMISTRY LETTERS　40　(12)　1456-1458　2011/12

    DOI： 10.1246/cl.2011.1456 　

    ISSN： 0366-7022

    eISSN： 1348-0715

  133. Double Lactonization in Triarylamine-Conjugated Dimethyl Diethynylfumarate: Formation of Intensely Colored and Luminescent Quadrupolar Molecules Including a Missing Structural Isomer of Pechmann Dyes Peer-reviewed

    Mikihiro Hayashi, Fumiyuki Toshimitsu, Ryota Sakamoto, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　133　(37)　14518-14521　2011/09

    DOI： 10.1021/ja2054176 　

    ISSN： 0002-7863

  134. Expanding Family of pi-Conjugated Trinuclear Dithiolenes: The Cases of Group 8 (Ru-II) and 10 (Ni-II and Pt-II) Metals Peer-reviewed

    Tetsuya Kambe, Satoru Tsukada, Ryota Sakamoto, Hiroshi Nishihara

    INORGANIC CHEMISTRY　50　(15)　6856-6858　2011/08

    DOI： 10.1021/ic200766p 　

    ISSN： 0020-1669

    eISSN： 1520-510X

  135. Affinity Clusters: An Adenine-Coated Gold Cluster Binds to Thymine Loops in DNA Peer-reviewed

    Takeshi Yamamura, Shinya Ariyasu, Ryota Sakamoto

    CHEMISTRY-AN ASIAN JOURNAL　6　(7)　1761-1765　2011/07

    DOI： 10.1002/asia.201000894 　

    ISSN： 1861-4728

  136. Platinadithiolene-conjugated pyrylium salt with strong intramolecular donor-acceptor interaction Peer-reviewed

    Koya Prabhakara Rao, Tetsuro Kusamoto, Ryota Sakamoto, Yuki Yamamoto, Shoko Kume, Masayuki Nihei, Hiroki Oshio, Hiroshi Nishihara

    CHEMICAL COMMUNICATIONS　47　(8)　2330-2332　2011

    DOI： 10.1039/c0cc04762g 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  137. Bottom-up fabrication of redox-active metal complex oligomer wires on an H-terminated Si(111) surface Peer-reviewed

    Hiroaki Maeda, Ryota Sakamoto, Yoshihiko Nishimori, Junya Sendo, Fumiyuki Toshimitsu, Yoshinori Yamanoi, Hiroshi Nishihara

    CHEMICAL COMMUNICATIONS　47　(30)　8644-8646　2011

    DOI： 10.1039/c1cc12832a 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  138. Double Protonation of 1,5-Bis(triarylaminoethynyl)anthraquinone To Form a Paramagnetic Pentacyclic Dipyrylium Salt Peer-reviewed

    Koya Prabhakara Rao, Tetsuro Kusamoto, Fumiyuki Toshimitsu, Kiyotaka Inayoshi, Shoko Kume, Ryota Sakamoto, Hiroshi Nishihara

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY　132　(35)　12472-12479　2010/09

    DOI： 10.1021/ja105250f 　

    ISSN： 0002-7863

    eISSN： 1520-5126

  139. A new special pair model comprising meso-di-p-anisylaminoporphyrin: enhancement of visible-light absorptivities and quantification of electronic communication in mixed-valent cation radical Peer-reviewed

    Ryota Sakamoto, Michihiro Nishikawa, Takeshi Yamamura, Shoko Kume, Hiroshi Nishihara

    CHEMICAL COMMUNICATIONS　46　(12)　2028-2030　2010

    DOI： 10.1039/b923854a 　

    ISSN： 1359-7345

  140. Alignment of Gold Clusters on DNA via a DNA-Recognizing Zinc Finger-Metallothionein Fusion Protein Peer-reviewed

    Shinya Ariyasu, Akira Onoda, Ryota Sakamoto, Takeshi Yamamura

    BIOCONJUGATE CHEMISTRY　20　(12)　2278-2285　2009/12

    DOI： 10.1021/bc9002713 　

    ISSN： 1043-1802

  141. trans-cis Photoisomerization of Azobenzene-Conjugated Dithiolato-Bipyridine Platinum(II) Complexes: Extension of Photoresponse to Longer Wavelengths and Photocontrollable Tristability Peer-reviewed

    Ryota Sakamoto, Shoko Kume, Manabu Sugimoto, Hiroshi Nishihara

    CHEMISTRY-A EUROPEAN JOURNAL　15　(6)　1429-1439　2009

    DOI： 10.1002/chem.200801593 　

    ISSN： 0947-6539

    eISSN： 1521-3765

  142. 5,15-Bis(di-p-anisylamino)-10,20-diphenylporphyrin: distant and intense electronic communication between two amine sites Peer-reviewed

    Ryota Sakamoto, Taishiro Sasaki, Norikazu Honda, Takeshi Yamamura

    CHEMICAL COMMUNICATIONS　(34)　5156-5158　2009

    DOI： 10.1039/b907413a 　

    ISSN： 1359-7345

  143. Conjugation of Au11 cluster with Cys-rich peptides containing the alpha-domain of metallothionein Peer-reviewed

    Shinya Ariyasu, Akira Onoda, Ryota Sakamoto, Takeshi Yamamura

    DALTON TRANSACTIONS　(19)　3742-3747　2009

    DOI： 10.1039/b900570f 　

    ISSN： 1477-9226

  144. DX DNAs as Templates for Multiple Arrangement of Zinc Fingers

    K. Sasaki, A. Onoda, M. Mizota, R. Sakamoto, T. Yamamura

    Nucleic Acids Symposium Series　52　(1)　695-696　2008/09/01

    Publisher: Oxford University Press (OUP)

    DOI： 10.1093/nass/nrn351 　

    ISSN： 0261-3166

    eISSN： 1746-8272

  145. Visible-Light Photochromism of Triarylamine- or Ferrocene-Bound Diethynylethenes that Switches Electronic Communication between Redox Sites and Luminescence Peer-reviewed

    Ryota Sakamoto, Shoko Kume, Hiroshi Nishihara

    Chemistry - A European Journal　14　(23)　6978-6986　2008/08/08

    DOI： 10.1002/chem.200800732 　

    ISSN： 0947-6539

  146. Visible-Light Photochromism of Bis(ferrocenylethynyl)ethenes Switches Electronic Communication between Ferrocene Sites Peer-reviewed

    Ryota Sakamoto, Masaki Murata, Hiroshi Nishihara

    Angewandte Chemie International Edition　45　(29)　4793-4795　2006/07/17

    DOI： 10.1002/anie.200601067 　

    ISSN： 1433-7851

  147. Photo-controllable tristability of a dithiolato-bipyridine-Pt(ii) complex molecule containing two azobenzene moieties Peer-reviewed

    Ryota Sakamoto, Masaki Murata, Shoko Kume, Hidekazu Sampei, Manabu Sugimoto, Hiroshi Nishihara

    Chemical Communications　(9)　1215-1217　2005

    DOI： 10.1039/b415293j 　

    ISSN： 1359-7345

    eISSN： 1364-548X

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Misc. 17

  1. Development of Metal-Nitrogen-Doped Carbon Materials Featuring Single-Atom Catalyst Motifs Derived from Thermally Polymerizable Metal Phthalocyanines and Their CO2RR Activity

    佐野雄紀, 豊田良順, 高石慎也, 岩瀬和至, 仁科勇太, 吉井丈晴, 坂本良太

    炭素材料学会年会要旨集(Web)　52nd　2025

  2. Exploration of Durable CO2 Reduction Electrocatalysts based on Metalloporphyrins

    茂木はるこ, 佐野雄紀, 豊田良順, 岩瀬和至, 高石慎也, 坂本良太

    日本化学会春季年会講演予稿集(Web)　105th　2025

  3. 新しい物質群「3Dカーボン構造体」の創成 Invited

    坂本良太, 仁科勇太, 神谷和秀, 西原洋知, 生越友樹

    化学　77　(3)　303-304　2022/03

  4. 分子性ナノシートの新展開

    坂本 良太, 西原 寛

    化学と工業　72　344-346　2019

  5. 高分子重合により合成可能な２次元カーボン：グラフィジイン

    坂本 良太, 西原 寛

    高分子　68　(6)　303-304　2019

  6. 金属錯体を基盤とする機能性低次元系の創製（錯体化学会奨励賞受賞総説）

    坂本 良太

    Bull. Jpn. Soc. Coord. Chem.　67　41-46　2016

  7. Bottom-up Coordination Nanosheets Applicable for Electronics and Spintronics

    67　(5)　385-390　2016

    Publisher: 小峰工業出版

    ISSN： 0451-2014

  8. Photofunctional Bis(dipyrrinato)zinc(II) complex nanosheet

    Ryota Sakamoto, Tatsuhiro Nagayama, Ken Hoshiko, Toshiki Yagi, Hiroshi Nishihara

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　249　2015/03

    ISSN： 0065-7727

  9. Metal complex nanosheets : Improvement of photoelectric conversion ability

    Material stage　15　(5)　41-45　2015

    Publisher: 技術情報協会

    ISSN： 1346-3926

  10. 機能性「ボトムアップ型」金属錯体ナノシート

    坂本 良太, 塚本 孝政, 高田 健司, 西原 寛

    触媒　57　362-367　2015

  11. Functional "Bottom-up" Metal Complex Nanosheets

    65　(12)　944-948　2014/12

    Publisher: 小峰工業出版

    ISSN： 0451-2014

  12. 非対称ジピリン銅およびニッケル錯体の合成

    豊田良順, 土屋瑞穂, 服部陽平, 松岡亮太, 坂本良太, 西原寛

    錯体化学会討論会講演要旨集　64th　2014

  13. 界面配位プログラミングによる電子機能ナノ構造体の構築

    松岡 亮太, 坂本 良太, 山野井 慶徳, 西原 寛

    ナノ学会会報　11　63-69　2013/03

    Publisher: ナノ学会

    ISSN： 1347-8028

  14. 「130 年かかった夢の化合物―ペックマン色素の新規構造異性体を合成」

    坂本 良太, 林 幹大, 西原 寛

    化学　67　(1)　39-44　2012

    Publisher: 化学同人

    ISSN： 0451-1964

  15. Coordination programming of electrofunctional molecular wires on the surface

    Hiroshi Nishihara, Hiroaki Maeda, Ryota Sakamoto, Yoshihiko Nishimori, Junya Sendo, Toshimitsu Fumiyuki, Yoshinori Yamanoi

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　242　2011/08

    ISSN： 0065-7727

  16. Electrochemical Analysis of Metal Complex Wires and Their Long-range Electron Transport Properties

    MAEDA Hiroaki, SAKAMOTO Ryota, NISHIHARA Hiroshi

    J. Surf. Sci. Soc. Jpn.　32　(10)　641-646　2011

    Publisher: The Surface Science Society of Japan

    DOI： 10.1380/jsssj.32.641 　

    ISSN： 0388-5321

    More details Close

    The bottom-up methods have recently attracted much attention as the fabrication techniques of nanoscale devices. Self-assembled monolayer (SAM) can be a basis to construct nanoscale structures, and many researchers have challenged to fabricate multilayer systems with self assembly. Among a variety of the preparation methods of self-assembled multilayer structures, the stepwise coordination is one of the most attractive methods because it allows us to construct complex oligomer wires quantitatively and regularly using very simple processes. Our main research targets are the fabrication of π-conjugated bis(terpyridine) complex oligomer wires and their electron transport properties. Linear and branched wires were constructed by the stepwise coordination method, and their electron transport mechanism was analyzed by potential-step chronoamperometry. Additionally, it was found that bis(terpyridine) complex oligomer wires have the excellent long-range electron transport ability and we can control it by changing combination of surface anchoring molecules, metal ions and bridging ligands.

  17. Visible light photochromism of bis(ferrocenylethynyl)ethenes to switch electronic communication between ferrocene sites

    Hiroshi Nishihara, Ryota Sakamoto, Shoko Kume

    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY　233　396-396　2007/03

    ISSN： 0065-7727

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Books and Other Publications 9

  1. Functional Nanomaterials. Synthesis, Properties and Applications

    Ryota Sakamoto

    WILEY-VCH　2022/05

    ISBN: 9783527347971

  2. ポストグラフェン材料の創製と用途開発最前線 : 二次元ナノシートの物性評価、構造解析、合成、成膜プロセス技術、応用展開（監修 柚原 淳司）

    坂本 良太, 米田 丈

    エヌ・ティー・エス　2020/04

    ISBN: 9784860436575

  3. グラフェンから広がる二次元物質の新技術と応用 : 世界の動向、CVD合成、転写積層、量子物性、センサ・デバイス、THz応用（監修 吾郷 浩樹/斎藤 理一郎）

    坂本 良太, 米田 丈

    エヌ・ティー・エス　2020/03

    ISBN: 9784860436636

  4. 二次元物質の科学 : グラフェンなどの分子シートが生み出す新世界（日本化学会 編）

    坂本 良太, 前田 啓明, 西原 寛

    化学同人　2017/03

    ISBN: 9784759813852

  5. 錯体化学会選書9 金属錯体の電子移動と電気化学（西原 寛/市村 彰男/田中 晃二 編著）

    坂本 良太, 前田 啓明, 西原 寛

    三共出版　2013/11

    ISBN: 9784782706992

  6. Comprehensive Inorganic Chemistry II (Second Edition): From Elements to Applications (Editors in Chief: Jan Reedijk / Kenneth R. Poeppelmeier)

    Ryota Sakamoto, Hiroshi Nishihara

    Elsevier　2013

    ISBN: 9780080965291

  7. Molecular Design and Applications of Photofunctional Polymers and Materials (Edited by: Wai-Yeung Wong/ Alaa S Abd-El-Aziz)

    Ryota Sakamoto, Hiroshi Nishihara

    Royal Society of Chemistry　2012/09

    ISBN: 9781849735759

  8. 錯体化学会選書7 金属錯体の機器分析・上（大塩 寛紀 編著）

    坂本 良太, 西原 寛

    三共出版　2010

    ISBN: 9784782706398

  9. Molecular Electronic and Related Materials-Control and Probe with Light (Editor: Toshio Naito)

    Ryota Sakamoto, Hiroshi Nishihara

    Transworld Research Network　2010

    ISBN: 9788178954608

Show all Show first 5

Presentations 70

  1. 分子低次元系の新展開 Invited

    坂本 良太

    25-2超分子研究会 「超分子材料の機能と形成メカニズム～基礎から応用まで」　2026/01/23

  2. Two-Dimensional Metal–Organic Framework Acts as a Hydrogen Evolution Cocatalyst for Overall Photocatalytic Water Splitting Invited

    Ryota Sakamoto

    10th Asian Conference on Coordination Chemistry - ACCC10　2025/10

  3. Two-Dimensional Metal–Organic Framework Acts as a Hydrogen Evolution Cocatalyst for Overall Photocatalytic Water Splitting Invited

    Ryota Sakamoto

    The 12th International Symposium on Dynamic Exciton (ISDyEx 2024)　2024/12

  4. 分子低次元系の新展開 Invited

    坂本 良太

    物性研短期研究会「新物質開発・システム創成研究の最前線：分子・クラスターがもたらす物性と機能」　2024/10

  5. The 12th International Symposium on Dynamic Exciton (ISDyEx 2024) Invited

    Ryota Sakamoto

    The 20th Japan-Korea Joint Symposium on Organometallic and Coordination Chemistry　2024/10

  6. Two-Dimensional Metal–Organic Framework Acts as a Hydrogen Evolution Cocatalyst for Overall Photocatalytic Water Splitting Invited

    Ryota Sakamoto

    The 1st RIST International Symposium "Chemistry and Physics of Coordination Nanosheet"　2024/05

  7. The 20th Japan-Korea Joint Symposium on Organometallic and Coordination Chemistry Invited

    Ryota Sakamoto

    245th ECS Meeting　2024/05

  8. Two-Dimensional Metal–Organic Framework Acts as a Hydrogen Evolution Cocatalyst for Overall Photocatalytic Water Splitting Invited

    Ryota Sakamoto

    9th Asian Conference on Coordination Chemistry (ACCC9)　2024/02

  9. 二次元PCPs/MOFs/COFsの新展開 Invited

    坂本 良太

    日本化学会第103春季年会　2023/03/22

  10. Bottom-up Molecular Nanowires and Nanosheets Invited

    Ryota Sakamoto

    19th Korea-Japan Joint Symposium in Inorganic Chemistry　2022/11/26

  11. 分子性ナノシート・ナノワイヤの新展開 Invited

    坂本 良太

    第245 回有機エレクトロニクス材料研究会 「トポロジカル絶縁体」　2021/07/14

  12. 「分子低次元物質の新展開」

    坂本 良太

    階層縦断的アプローチによる革新的光エネルギー変換系の開拓 ～マテリアルサイエンスの最前線～　2020/11

  13. 「分子低次元物質の新展開」

    坂本 良太

    CEMS Topical Meeting Onlineー 超分子ポリマーの進化形 ー　2020/07

  14. "Crystalline Graphdiyne Nanosheets Produced at a Gas/Liquid or Liquid/Liquid Interface"

    Ryota Sakamoto

    Pure and Applied Chemistry International Conference 2020 (PACCON 2020)　2020/02

  15. 「新規ナノカーボン「グラフィジイン」の精密合成」

    坂本 良太

    第 46 回 炭素材料学会年会　2019/11

  16. 「光機能性ナノワイヤ・ナノシート」

    坂本 良太

    第 68 回 高分子討論会　2019/09

  17. 「機能性分子低次元系の合成・分析・機能」

    坂本 良太

    新化学技術推進協会 先端化学・材料技術部会 新素材分科会 講演会　2019/01

  18. 「機能性分子低次元系の合成・分析・機能」

    坂本 良太

    錯体化学若手の会北陸支部勉強会　2018/12

  19. “Functional Molecule-Based nanosheets”

    Ryota Sakamoto

    2018 Nankai International Symposium on Advanced Materials　2018/11

  20. 「機能性分子低次元系のボトムアップ創製」

    坂本 良太

    第 67 回 高分子討論会　2018/09

  21. “Functional Molecule-Based nanosheets”

    Ryota Sakamoto

    43rd International Symposium on Coordination Chemistry (ICCC2018)　2018/08

  22. 「機能性分子低次元系のボトムアップ創製」

    坂本 良太

    第30回 万有札幌シンポジウム 希望につながる新しい化学　2018/07

  23. 「機能性分子低次元系のボトムアップ創製

    坂本 良太

    野口遵研究助成金講演会　2018/03

  24. “Functional Molecule-Based Nanosheets”

    Ryota Sakamoto

    Asian International Symposium 2018　2018/03

  25. “Bottom-up synthesis of functional molecule-based nanosheets”

    Ryota Sakamoto

    International Winterschool on Electronic Properties of Novel Materials (IWEPNM 2018)　2018/03

  26. “Creation of functional molecule-based nanosheets”

    Ryota Sakamoto

    The 4th International Workshop on Chromogenic Materials and Devices　2018/01

  27. “Photofunctional Bis(dipyrrinato)zinc(II) Coordination Nanosheets”

    2017 NEA Symposium of Emerging Materials Innovation　2017/10

  28. “Crystalline Graphdiyne Nanosheets Produced at a Gas/Liquid or Liquid/Liquid Interface”

    Ryota Sakamoto

    International Symposium on Pure & Applied Chemistry (ISPAC) 2017　2017/06

  29. “New Aspects in Dipyrrin-Metal Complexes: From Molecular Science to Low-Dimensional Molecular Assemblies”

    Ryota Sakamoto

    International Symposium on Pure & Applied Chemistry (ISPAC) 2016　2016/08

  30. 「二次元物質ナノシートの液液・気液界面合成」

    坂本 良太

    化学とマイクロ・ナノシステム学会 第 33 回 研究会 若手フォーラム　2016/04

  31. 「有機ー無機ハイブリッドナノシートのボトムアップ合成と機能性ナノ材料への応用」

    坂本 良太

    日本物理学会 第 71 回 年次大会　2016/03

  32. 「金属錯体を基盤とする機能性低次元系のボトムアップ創製」（進歩賞受賞講演）

    坂本 良太

    日本化学会 第 96 春季年会　2016/03

  33. “A photofunctional “bottom-up” bis(dipyrrinato)zinc(II) complex nanosheet”

    Ryota Sakamoto

    The 2015 International Chemical Congress of Pacific Basin Societies (Pacifichem)　2015/12

  34. 「省エネルギーおよびエネルギー創出を担う「ボトムアップ型」ナノシート」

    坂本 良太

    一般財団法人 エヌエフ基金 第 4 回(2015 年度) 研究発表会　2015/11

  35. 「金属錯体低次元系のボトムアップ合成と機能発現」

    電気学会 新しい原子分子組織化物質・材料創出に向けた光・量子ビーム応用技術調査専門委員会　2015/10

  36. “LOW-DIMENSIOANAL MATERIALS BASED ON COORDINATION COMPOUNDS”

    Ryota Sakamoto

    10th China-Japan Joint Symposium on Metal Cluster Compounds (CJSMCC-2015)　2015/10

  37. 「異種界面を利用した機能性「ボトムアップ型」ナノシートの創成」

    坂本 良太

    第 64 回 高分子討論会　2015/09

  38. 「Functional "bottom-up" metal complex nanosheets」

    Ryota Sakamoto

    第 65 回 錯体化学討論会 特別シンポジウム「New Aspects in Two-dimensional Materials -Focusing on Fusion with Coordination Chemistry-　2015/09

  39. 「金属錯体を基盤とする機能性低次元系の創製」（研究奨励賞受賞講演）

    坂本 良太

    第 65 回 錯体化学討論会　2015/09

  40. “Photofunctional bis(dipyrrinato)metal complex nanowire and nanosheet”

    Ryota Sakamoto

    The 2nd Japan-Germany Joint Symposium on Coordination Chemistry　2015/09

  41. “Functional One-Dimensional Coordination Polymers”

    Ryota Sakamoto

    The Third China-Japan Joint Symposium on Inorganic and Nanomaterial Science　2015/06

  42. 「金属錯体低次元系の構築と物性」

    坂本 良太

    第 2 回 東北大学リーディング大学院研究会「金属錯体の固体物性最前線‐金属錯体と固体物性物理と生 物物性の連携新領域をめざして‐」　2015/02

  43. “Functional Bottom-Up Metal Complex Nanosheets”

    Ryota Sakamoto, Tatsuhiro Nagayama, Hiroshi Nishihara

    18th Malaysian International Chemical Congress (18MICC)　2014/11

  44. “Functional Bottom-Up Metal Complex Nanosheets”

    Ryota Sakamoto, Tatsuhiro Nagayama, Hiroshi Nishihara

    Vietnam Malaysia International Chemical Congress (VMICC)　2014/11

  45. “Bottom-up molecular wires and sheets for artificial photosynthesis”

    Ryota Sakamoto

    2014 International Conference on Artificial Photosynthesis (ICARP2014)　2014/11

  46. “Brightly Luminescent π-Extended Dipyrrin Complexes”

    Ryota Sakamoto, Shinpei Kusaka, Mizuho Tsuchiya, Hiroshi Nishihara

    41st International Conference on Coordination Chemistry (ICCC-41)　2014/07

  47. 「光機能性「ボトムアップ型」金属錯体ナノシート・ナノワイヤ」

    坂本 良太

    日本化学会研究会「低次元系光機能材料研究会」第３回 研究講演会―低次元系光機能材料と人工光合 成―　2014/05

  48. “Coordination Programming of Functional Molecular Wires and Sheets”

    Ryota Sakamoto

    Asian International Symposium in The 94th Annual Meeting　2014/03

  49. “Metal Complex Nanowires and Nanosheets Aiming at Photosynthetic Antenna Models”

    Ryota Sakamoto

    Tenth International Workshop on Supramolecular Nanoscience of Chemically Programmed Pigments (SNCPP14)　2014/03

  50. 「ボトムアップ型」金属錯体ナノシート・ナノワイヤ」

    坂本 良太

    第１回 東北大学リーディング大学院研究会「金属錯体の固体物性最前線‐金属錯体と固体物性物理と生 物物性の連携新領域をめざして‐」　2014/02

  51. “Coordination Programming of Photo- and Electro-Functional Molecular Assemblies”

    Ryota Sakamoto, Yoshinori Yamanoi, Hiroshi Nishiahra

    15th Asian Chemical Congress 2013 (15 ACC)　2013/08

  52. “Coordination Programming of Photo- and Electro-Functional Molecular Assemblies”

    Ryota Sakamoto

    Japan-China young scientist symposium "Frontier of coordination chemistry at the interface of nano and micro"　2013/06

  53. 「刺激応答分子の創製とその精密配列による化学素子の開発」

    坂本 良太

    日本化学会第 93 春季年会 イブニングセッション「配位プログラミングの化学―超構造体創製から 化学素子への展開」　2013/03

  54. “Coordination Programming of Photo- and Electro-functional Molecular Materials”

    Ryota Sakamoto

    17th Malaysian Chemical Congress, Kuala Lumpur (Malaysia)　2012/10

  55. 「配位プログラミングによる光・電子マテリアルの創製」

    坂本 良太, 西原 寛

    電気化学会関東支部夏の学校　2012/08

  56. 「芳香族アミンを基盤とする光・電気機能性分子群の創製」

    坂本 良太

    電気化学会第 79 回大会　2012/03

  57. “Coordination Programming of Photo- and Electro-Functional Materials”

    Ryota Sakamoto, Hiroshi Nishihara

    14th Asian Chemical Congress 2011 (14 ACC)　2011/09

  58. 「有機フォトクロミック化合物と遷移金属錯体のインタープレイ」

    坂本 良太, 西原 寛

    第 60 回 錯体化学討論会　2010/09

  59. 5,15-ビス(ジアリールアミノ)-10,20-ジフェニルメタロポルフィリンの光・電気化学特性

    第88春季年会　2008

  60. DNA-ジンクフィンガー相互作用を用いた金クラスターの自由配列

    第88春季年会　2008

  61. マンガンクラスターのシロキサンネットワークによる被膜

    第57回錯体化学討論会　2007

  62. ドナー性レドックスサイトを有するジエチニルエテンの可視光フォトクロミズムと電子相互作用のスイッチ

    第57回 錯体化学討論会　2007

  63. ドナー性レドックスサイトを有するジエチニルエテンの可視光フォトクロミズムと電子相互作用のスイッチ

    2007光化学討論会　2007

  64. ドナー性レドックスサイトを有するジエチニルエテンの可視光フォトクロミズムと電子相互作用のスイッチ

    第一回有機フォトクロミズムシンポジウム　2007

  65. 亜鉛メチルピロフェオフォルバイドを用いた光合成反応中心モデルの合成

    第57回 錯体化学討論会　2007

  66. ジンクフィンガーメタメタロチオネインAuナノクラスター複合体のDNA結合能の向上

    第57回 錯体化学討論会　2007

  67. ドナー性レドックスサイトを有するジエチニルエテンの可視光フォトクロミズムと電子相互作用のスイッチ

    第20回 配位化合物の光化学討論会　2007

  68. シアノバクテリア型アンテナクロロフィルモデルアミノ酸型メチルピロフェオフォルバイドダイマー

    2007光化学討論会　2007

  69. メチルフェオフォルバイトを用いた新規光合成反応中心スペシャルモデル

    2007 光化学討論会　2007

  70. “Visible Light Photochromism of Bis(ferrocenylethynyl)ethenes To Switch Electronic Communication Between Ferrocene Sites”

    Ryota Sakamoto, Shoko Kume, Hiroshi Nishihara

    Second International Symposium on Chemistry of Coordination Space - ISCCS 2006　2006/12

Show all Show first 5

Research Projects 5

  1. Exploration of unexplored areas of dipyrrin complexes: pursuit of photochemical and photofunctional properties

    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

    2024/04/01 - 2027/03/31

  2. Realization of "Exospheric Superceramics" by Molecular Nanosheets

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Transformative Research Areas (A)

    Institution: Tohoku University

    2023/04/01 - 2025/03/31

  3. Expression and analysis of dynamic excitons in dipyrrin nanoarrays

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Transformative Research Areas (A)

    Institution: Tohoku University

    2023/04/01 - 2025/03/31

  4. Creation of dipyrrin nanowires as molecular photonic wire candidates and efficient exciton migration thereof.

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Exploratory)

    Category: Grant-in-Aid for Challenging Research (Exploratory)

    Institution: Tohoku University

    2022/06/30 - 2024/03/31

  5. Synthesis of high-quality pi-coordination nanosheet using gaseous interface

    Nishihara Hiroshi, Sakamoto Ryota, Kusamoto Tetsuro, Nakazato Kazuo

    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: The University of Tokyo

    2015/04/01 - 2018/03/31

    More details Close

    In a ultrahigh vacuum chamber, hexakis(benzylthio)benzene and nickel(0) were co-deposited on a graphite surface and observed its structure using STM. The co-deposition formed a three-dimensional clusters, and sheet-like products were not observed. In the next experiment, Cu(111) surface, which is supposed to interact more strongly with molecules, was employed for the deposition of hexakis(benzylthio)benzene. Several ordered structures were observed on a whole surface by STM. The formation of clear large two-dimensional sheet-like structure has not been confirmed yet, but the ordered alignment of ligand-originated molecules and metal atoms was observed in a restricted area.

Media Coverage 1

  1. 東北大・東京理科大・京大・帝京科学大・分子科学研、光が流れるナノチェーンを開発し機構も解明

    日本経済新聞　https://www.nikkei.com/article/DGXZRSP686614_X00C25A2000000/

    2025/02

    Type: Newspaper, magazine