Details of the Researcher

PHOTO

Yuichi Kitamoto
Section
Graduate School of Engineering
Job title
Assistant Professor
Degree

  • 博士（工学）（東北大学）

  • 修士（学術）（東北大学）

Research History 5

  • 2019/04 - Present
    Tohoku University

  • 2017/10 - 2019/03
    Chiba University

  • 2017/04 - 2017/09
    コニカミノルタ株式会社　要素技術開発センター

  • 2015/04 - 2017/03
    Tohoku University　New Industry Creation Hatchery Center

  • 2014/04 - 2015/03
    Tohoku University　Environment Conservation Center

Education 3

  • 東北大学大学院　工学研究科　バイオ工学専攻 博士課程後期

    2011/04 - 2014/03

  • 東北大学大学院　環境科学研究科　環境科学専攻 博士課程前期

    2009/04 - 2011/03

  • Tohoku University　Faculty of Engineering

    2005/04 - 2009/03

Committee Memberships 6

  • The Tohoku Branch of the Chemical Society of Japan　Auditor

    2024/03 - 2025/02

  • The Tohoku Branch of the Chemical Society of Japan　Branch Secretary-General of the Tohoku Branch

    2023/03 - 2024/02

  • International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan (2023 Joint Meeing of the Tohoku Area Chemistry Societies)　Branch Secretary-General of the Tohoku Branch

    2023/03 - 2023/12

  • 日本化学会東北支部　幹事

    2022/04 - 2023/03

  • 第33回万有仙台シンポジウム事務局

    2021/11 - 2022/11

  • 有機合成化学協会東北支部　常任幹事

    2020/04 - 2022/03

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Professional Memberships 3

  • 基礎有機化学会

  • THE SOCIETY OF SYNTHETIC ORGANIC CHEMISTRY, JAPAN

  • THE CHEMICAL SOCIETY OF JAPAN

Research Interests 6

  • 超分子ポリマー

  • 機能性有機ホウ素化合物

  • 超分子化学

  • キラルテクノロジー

  • 熱活性化遅延蛍光材料

  • 有機合成化学

Research Areas 3

  • Nanotechnology/Materials / Functional solid-state chemistry /

  • Nanotechnology/Materials / Synthetic organic chemistry /

  • Nanotechnology/Materials / Structural/physical organic chemistry /

Awards 9

  1. Poster award

    2024/09　Preparation of solid-state electrolytes from lithium and boroxine compounds and evaluation of their lithium-ion conductivities

  2. IPC2023 Poster Award: ACS Polymers Au Award - sponsored by American Chemical Society

    2023/07　The 13th SPSJ International Polymer Conference (IPC2023)　Control over Supramolecular Chirality through Photo-regulated Heterogeneity during Nucleation Process

  3. 若手奨励賞

    2022/12　応用物理学会 極限的励起状態の形成および量子エネルギー変換研究グループ 第8回研究会（兼 第24回次世代先端光科学研究会）　熱活性化遅延蛍光分子添加プラスチックシンチレータのエネルギー収率の解析

  4. Poster award

    2021/10　N,O-hybrid-bridge-type planar triphenylboranes: Synthesis and effects of the bridging atoms on their photophysical properties and Lewis acidity

  5. 奨励賞

    2019/11　Inversion of Supramolecular Chirality by Photoisomerization

  6. Poster award

    2019/09　Photoinduced Inversion of Supramolecular Chirality

  7. Poster award

    2018/05　Inversion of Supramolecular Chirality by Photoinduced Pathway Selection in Self-Assembly Process

  8. Best poster award

    2014/06　Photoracemization of 4,4′-dimethoxy-2,2′-biphenanthrene-1,1′- diol and its stereoselective inhibition

  9. Poster award

    2014/06　Enantioselective inclusion of amino acids with molecular crystal of α-cyclodextrin

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Papers 25

  1. Molecular Design and Synthesis of Narrowband Near‐Ultraviolet and Pure Deep‐Blue Thermally Activated Delayed Fluorescence Materials by an Ether Group Strategy International-journal Peer-reviewed

    Yuichi Kitamoto, Atsuya Ogawa, Masaya Inakawa, Yutaka Fujimoto, Masanori Koshimizu, Kazuma Oda, Hideo Taka, Hiroshi Kita, Tetsutaro Hattori

    Angewandte Chemie International Edition　2025/06/16

    Publisher: Wiley

    DOI： 10.1002/anie.202510891 　

    ISSN： 1433-7851

    eISSN： 1521-3773

    More details Close

    Abstract Boron‐containing polycyclic aromatic hydrocarbons are promising materials for the development of displays due to their multiple‐resonance thermally activated delayed fluorescence (MR‐TADF) with narrowband emission. However, except for electrophilic aromatic borylation reactions, synthetic strategies for the generation of boron‐containing MR‐TADF molecules remain virtually unexplored. In particular, the synthesis of MR‐TADF emitters that exhibit narrow near‐ultraviolet and pure deep‐blue emission constitutes a challenging task. Here, we present a directed tri‐ortho‐lithiation–borylation approach that provides a new family of N,N‐bridge‐type triphenylboranes that bear phenylimino groups instead of the methylene groups at the 8‐ and 14‐positions and ether groups instead of the hydrogen atoms at the 3‐ and 19‐positions of 1‐borapentacyclohenicosanonaene. The effects of the electron‐donating resonance of the oxygen atoms of the ether groups and the incorporation of oxygen atoms in the six‐membered cycle allow the precise tuning of the HOMO–LUMO energy gaps, resulting in narrowband near‐ultraviolet and pure deep‐blue TADF with Commission‐International‐de‐l’Éclairage coordinates (CIEx,y) of (0.142–0.160, 0.029–0.063) for the photoluminescence (PL) and (0.146–0.160, 0.026–0.053) for the electroluminescence (EL). The CIEx,y for the EL meet the BT.2020 requirement for the blue primary of ultrahigh‐definition displays.

  2. Inversion of supramolecular chirality by photo-enhanced secondary nucleation International-journal Peer-reviewed

    Takuho Saito, Daisuke Inoue, Yuichi Kitamoto, Hiroki Hanayama, Takatoshi Fujita, Yuki Watanabe, Masayuki Suda, Takashi Hirose, Takashi Kajitani, Shiki Yagai

    Nature Nanotechnology　2025/04/11

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41565-025-01882-8 　

    ISSN： 1748-3387

    eISSN： 1748-3395

    More details Close

    These authors contributed equally: Takuho Saito, Daisuke Inoue, Yuichi Kitamoto.

  3. Synthesis of Azadioxa-Planar Triphenylboranes Bridged by Aryl- and Alkylimino Groups and Their Photophysical Properties International-journal Peer-reviewed

    Yuichi Kitamoto, Kazuma Oda, Hiroshi Kita, Tetsutaro Hattori, Shuichi Oi

    The Journal of Organic Chemistry　2023/04/21

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.joc.3c00275 　

    ISSN： 0022-3263

    eISSN： 1520-6904

  4. Synthesis of an azadioxa-planar triphenylborane and investigation of its structural and photophysical properties International-journal Peer-reviewed

    Yuichi Kitamoto, Kazuma Oda, Kohei Ogino, Kunimasa Hiyama, Hiroshi Kita, Tetsutaro Hattori, Shuichi Oi

    Chemical Communications　57　(18)　2297-2300　2021/01

    Publisher: Royal Society of Chemistry (RSC)

    DOI： 10.1039/d0cc08331c 　

    ISSN： 1359-7345

    eISSN： 1364-548X

    More details Close

    <p>An azadioxa-planar triphenylborane was synthesized for the first time and it was found that bridging groups have a critical role in changing its molecular properties.</p>

  5. Self-assembled poly-catenanes from supramolecular toroidal building blocks International-journal International-coauthorship Peer-reviewed

    Sougata Datta, Yasuki Kato, Seiya Higashiharaguchi, Keisuke Aratsu, Atsushi Isobe, Takuho Saito, Deepak D. Prabhu, Yuichi Kitamoto, Martin J. Hollamby, Andrew J. Smith, Robert Dalgliesh, Najet Mahmoudi, Luca Pesce, Claudio Perego, Giovanni M. Pavan, Shiki Yagai

    Nature　583　(7816)　400-405　2020/07/16

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41586-020-2445-z 　

    ISSN： 0028-0836

    eISSN： 1476-4687

  6. Enantioselective inclusion of pyrene-1-sulfonate salts of α-amino acids with crystals of α-cyclodextrin International-journal

    Ikuko Miyoshi, Yuichi Kitamoto, Tetsuya Maeda, Naoya Morohashi, Tetsutaro Hattori

    Tetrahedron　76　(16)　2020/04/17

    Publisher: Elsevier Ltd

    DOI： 10.1016/j.tet.2020.131100 　

    ISSN： 1464-5416 0040-4020

  7. Supramolecular copolymerization driven by integrative self-sorting of hydrogen-bonded rosettes International-journal International-coauthorship Peer-reviewed

    Aratsu, K., Takeya, R., Pauw, B. R., Hollamby, M. J., Kitamoto, Y., Shimizu, N., Takagi, R., Haruki, R., Adachi, S., Yagai, S.

    Nat. Commun.　11　(1)　1623　2020/04/01

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41467-020-15422-6 　

    eISSN： 2041-1723

  8. Publisher Correction: Self-assembled poly-catenanes from supramolecular toroidal building blocks (Nature, (2020), 583, 7816, (400-405), 10.1038/s41586-020-2445-z)

    Datta, S., Kato, Y., Higashiharaguchi, S., Aratsu, K., Isobe, A., Saito, T., Prabhu, D.D., Kitamoto, Y., Hollamby, M.J., Smith, A.J., Dalgliesh, R., Mahmoudi, N., Pesce, L., Perego, C., Pavan, G.M., Yagai, S.

    Nature　588　(7839)　2020

    DOI： 10.1038/s41586-020-3012-3 　

    ISSN： 1476-4687 0028-0836

  9. Author Correction: Self-assembled poly-catenanes from supramolecular toroidal building blocks (Nature, (2020), 583, 7816, (400-405), 10.1038/s41586-020-2445-z) International-journal International-coauthorship

    Datta, S., Kato, Y., Higashiharaguchi, S., Aratsu, K., Isobe, A., Saito, T., Prabhu, D.D., Kitamoto, Y., Hollamby, M.J., Smith, A.J., Dalgliesh, R., Mahmoudi, N., Pesce, L., Perego, C., Pavan, G.M., Yagai, S.

    Nature　586　(7827)　2020

    DOI： 10.1038/s41586-020-2723-9 　

    ISSN： 1476-4687 0028-0836

  10. One-shot preparation of topologically chimeric nanofibers via a gradient supramolecular copolymerization International-journal Peer-reviewed

    Yuichi Kitamoto, Ziyan Pan, Deepak D. Prabhu, Atsushi Isobe, Tomonori Ohba, Nobutaka Shimizu, Hideaki Takagi, Rie Haruki, Shin-ichi Adachi, Shiki Yagai

    Nature Communications　10　(1)　4578　2019/10

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41467-019-12654-z 　

    eISSN： 2041-1723

  11. Supramolecular Polymers Capable of Controlling Their Topology International-journal International-coauthorship Invited Peer-reviewed

    Shiki Yagai, Yuichi Kitamoto, Sougata Datta, Bimalendu Adhikari

    Acconts of Chemical Research　52　(5)　1325-1335　2019/02

    Publisher: American Chemical Society (ACS)

    DOI： 10.1021/acs.accounts.8b00660 　

    ISSN： 0001-4842

    eISSN： 1520-4898

  12. Investigation of the Lewis acidic behaviour of an oxygen-bridged planarized triphenylborane toward amines and the properties of their Lewis acid–base adducts International-journal Peer-reviewed

    Yuichi Kitamoto, Fumiaki Kobayashi, Takatsugu Suzuki, Yasuo Miyata, Hiroshi Kita, Kenji Funaki, Shuichi Oi

    Dalton Transactions　48　2118-2127　2019/01

    DOI： 10.1039/c8dt00128f 　

  13. Light-regulated crystal growth of π-conjugated luminophores in an azobenzene matrix International-journal Peer-reviewed

    Takuji Kobayashi, Yuichi Kitamoto, Yu Hirai, Takashi Kajitani, Tomohiro Seki, Shiki Yagai

    Communications Chemistry　1　(1)　58　2018/09

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s42004-018-0061-8 　

    eISSN： 2399-3669

  14. Self-folding of supramolecular polymers into bioinspired topology International-journal International-coauthorship Peer-reviewed

    Deepak D. Prabhu, Keisuke Aratsu, Yuichi Kitamoto, Hayato Ouchi, Tomonori Ohba, Martin J. Hollamby, Nobutaka Shimizu, Hideaki Takagi, Rie Haruki, Shin-ichi Adachi, Shiki Yagai

    Science Advances　4　(9)　eaat8466-eaat8466　2018/09

    Publisher: American Association for the Advancement of Science (AAAS)

    DOI： 10.1126/sciadv.aat8466 　

    eISSN： 2375-2548

  15. Photoresponsive supramolecular polymers

    Kitamoto, Y., Aratsu, K., Yagai, S.

    Photoactive Functional Soft Materials: Preparation, Properties, and Applications　2018

    DOI： 10.1002/9783527816774.ch2 　

  16. Inclusion of Methylamines with the Crystal of p-tert-Butylthiacalix[4]arene: Inclusion Selectivity and Its Switching by Solvent Polarity International-journal Peer-reviewed

    Naoya Morohashi, Ozora Shibata, Ikuko Miyoshi, Yuichi Kitamoto, Kohei Ebata, Hiroko Nakayama, Tetsutaro Hattori

    CRYSTAL GROWTH & DESIGN　16　(8)　4671-4678　2016/08

    DOI： 10.1021/acs.cgd.6b00748 　

    ISSN： 1528-7483

    eISSN： 1528-7505

  17. Dimesitylarylborane-based luminescent emitters exhibiting highly-efficient thermally activated delayed fluorescence for organic light-emitting diodes International-journal Peer-reviewed

    Yuichi Kitamoto, Taketo Namikawa, Takatsugu Suzuki, Yasuo Miyata, Hiroshi Kita, Tetsuo Sato, Shuichi Oi

    ORGANIC ELECTRONICS　34　216-225　2016/07

    DOI： 10.1016/j.orgel.2016.04.030 　

    ISSN： 1566-1199

    eISSN： 1878-5530

  18. Design and synthesis of efficient blue thermally activated delayed fluorescence molecules bearing triarylborane and 10,10-dimethyl-5,10-dihydrophenazasiline moieties International-journal Peer-reviewed

    Yuichi Kitamoto, Taketo Namikawa, Takatsugu Suzuki, Yasuo Miyata, Hiroshi Kita, Tetsuo Sato, Shuichi Oi

    Tetrahedron Letters　57　(44)　4914-4917　2016

    Publisher: Elsevier Ltd

    DOI： 10.1016/j.tetlet.2016.09.072 　

    ISSN： 1873-3581 0040-4039

  19. The first synthesis and X-ray crystallographic analysis of an oxygen-bridged planarized triphenylborane International-journal Peer-reviewed

    Yuichi Kitamoto, Takatsugu Suzuki, Yasuo Miyata, Hiroshi Kita, Kenji Funaki, Shuichi Oi

    CHEMICAL COMMUNICATIONS　52　(44)　7098-7101　2016

    DOI： 10.1039/c6cc02440h 　

    ISSN： 1359-7345

    eISSN： 1364-548X

  20. Photoracemization of Blestriarene C and Its Analogs International-journal Peer-reviewed

    Koichi Natori, Taizo Iwayama, Osamu Yamabe, Yuichi Kitamoto, Hiroshi Ikeda, Kenkichi Sakamoto, Tetsutaro Hattori, Sotaro Miyano

    CHIRALITY　27　(8)　479-486　2015/08

    DOI： 10.1002/chir.22447 　

    ISSN： 0899-0042

    eISSN： 1520-636X

  21. Effect of Solvent Polarity on Enantioselectivity in Candida Antarctica Lipase B Catalyzed Kinetic Resolution of Primary and Secondary Alcohols International-journal Peer-reviewed

    Yuichi Kitamoto, Yosuke Kuruma, Kazumi Suzuki, Tetsutaro Hattori

    JOURNAL OF ORGANIC CHEMISTRY　80　(1)　521-527　2015/01

    DOI： 10.1021/jo502521e 　

    ISSN： 0022-3263

  22. Light blue and green thermally activated delayed fluorescence from 10H-phenoxaborin-derivatives and their application to organic light-emitting diodes International-journal Peer-reviewed

    Yuichi Kitamoto, Taketo Namikawa, Dai Ikemizu, Yasuo Miyata, Takatsugu Suzuki, Hiroshi Kita, Tetsuo Sato, Shuichi Oi

    JOURNAL OF MATERIALS CHEMISTRY C　3　(35)　9122-9130　2015

    DOI： 10.1039/c5tc01380a 　

    ISSN： 2050-7526

    eISSN： 2050-7534

  23. Unique inclusion behaviour of 5,11,17,23-tetra-tert-butyl-25,26,27,28- tetraaminothiacalix[4]- Arene towards small organic molecules International-journal Peer-reviewed

    Naoya Morohashi, Hiroshi Katagiri, Takanori Shimazaki, Yuichi Kitamoto, Shinya Tanaka, Chizuko Kabuto, Nobuhiko Iki, Tetsutaro Hattori, Sotaro Miyano

    Supramolecular Chemistry　25　(12)　812-818　2013/12/01

    DOI： 10.1080/10610278.2013.806808 　

    ISSN： 1061-0278 1029-0478

  24. Switching of the Diastereomer Deposited during the Crystallization of N-[(S)-1-Phenylethyl]-2 '-carbamoyl-1,1 '-binaphthalene-2-carboxylic Acid: Investigation of the Mechanism of Dielectrically Controlled Resolution International-journal Peer-reviewed

    Yuichi Kitamoto, Kazumi Suzuki, Naoya Morohashi, Kenichi Sakai, Tetsutaro Hattori

    JOURNAL OF ORGANIC CHEMISTRY　78　(2)　597-605　2013/01

    DOI： 10.1021/jo3024285 　

    ISSN： 0022-3263

  25. Crystallization-based optical resolution of 1,1 &apos;-binaphthalene-2,2 &apos;-dicarboxylic acid via 1-phenylethylamides: control by the molecular structure and dielectric property of solvent International-journal Peer-reviewed

    Yuki Kato, Yuichi Kitamoto, Naoya Morohashi, Yosuke Kuruma, Shuichi Oi, Kenichi Sakai, Tetsutaro Hattori

    TETRAHEDRON LETTERS　50　(17)　1998-2002　2009/04

    DOI： 10.1016/j.tetlet.2009.02.088 　

    ISSN： 0040-4039

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Misc. 9

  1. 過去・現在・未来を照らす熱活性化遅延蛍光材料－トリアリールボラン型分子の開発動向を例に Invited

    北本雄一

    化学と工業　77　(10)　682-683　2024/10

  2. 次世代有機デバイス(4)～有機光エレクトロニクス～ 有機光エレクトロニクス素子に関連する企業・研究機関の取組動向 Invited

    北本雄一

    Yano E plus　186　26-32　2023/09

  3. 日本化学会東北支部80周年記念国際会議 Invited

    北本雄一

    化学と工業　76　(4)　267-267　2023/04

  4. キメラ構造を有する超分子ポリマーの創製 Invited

    北本雄一, 潘梓妍, 矢貝史樹

    超分子研究会アニュアルレビュー　40　4-5　2020/03

  5. One-shot Preparation of Topologically Chimeric Supramolecular Copolymers with Segregated Secondary Structures Invited Peer-reviewed

    Y. Kitamoto, Z. Pan, D. D. Prabhu, A. Isobe, T. Ohba, N. Shimizu, H. Takagi, R. Haruki, S. Adachi, S. Yagai

    Photon Factory Highlights　30-31　2020

  6. Self-Foldable Supramolecular Polymers Invited Peer-reviewed

    D. D. Prabhu, K. Aratsu, Y. Kitamoto, H. Ouchi, T. Ohba, M. J. Hollamby, N. Shimizu, H. Takagi, R. Haruki, S. Adachi, S. Yagai

    Photon Factory Highlights　36-37　2019

  7. 光による集合経路の制御を利用した超分子キラリティの反転

    北本雄一, 井上大輔, 矢貝史樹, 矢貝史樹

    シンポジウム「モレキュラー・キラリティー」講演要旨集　2018　201 (JA),200 (EN)　2018/05/11

    ISSN： 1881-0861

  8. 誘電率制御分割（DCR）法の可能性を探る

    北本雄一, 服部徹太郎

    化学工業　61　(11)　840-845　2010/11/01

    Publisher: 化学工業社

    ISSN： 0451-2014

  9. 溶媒の誘電率によるキラル識別の制御－誘電率制御分割法の原理と有用性

    北本雄一, 服部徹太郎

    化学　64　(4)　68-69　2009/04

    Publisher: 化学同人

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Books and Other Publications 3

  1. Photoactive Functional Soft Materials: Preparation, Properties, and Applications

    Yuichi Kitamoto, Keisuke Aratsu, Shiki Yagai

    Edited by Quan Li, Wiley-VCH　2019/05

    ISBN: 3527344829

  2. 次世代のポリマー・高分子開発、新しい用途展開と将来展望－生分解、自己修復、生物模倣、刺激応答、超分子、医療用途など

    矢貝史樹, 小林拓司, 北本雄一

    2019

  3. 刺激応答性高分子ハンドブック

    北本雄一, 矢貝史樹

    エヌ・ティー・エス　2018/12

Presentations 87

  1. Complexation of heteroatom-bridge-type planar triphenylborane with Lewis bases and their lithium conducting properties International-presentation

    Y. Kitamoto, T. Daiki, S. Yamamoto, T. Hattori

    The 19th International Symposium on Macrocyclic and Supramolecular Chemistry 2025 (ISMS2025)　2025/05/27

  2. Rhodium porphyrin-catalyzed borylation of alkenes

    2025/05/10

  3. Rhodium porphyrin-catalyzed C–H borylation of alkenes with low-loading amount of hydrogen acceptors

    2025/03/28

  4. Synthesis of N,N-bridge-type triarylboranes having carbazolyl unit and evaluation of its delayed fluorescence properties

    2025/03/27

  5. 熱活性化遅延蛍光を利用したシンチレータの高性能化

    金成太陽, 渥美舞彩, 北本雄一, 大井秀一, 服部徹太郎, 藤本裕, 浅井圭介, 越水正典

    極限的励起状態の形成と量子エネルギー変換研究グループ 第17回研究会（兼 第33回次世代先端光科学研究会）　2024/12/02

  6. Utilization of Thermally Stimulated Delayed Fluorescence in Organic Scintillators International-presentation Invited

    M. Koshimizu, Y. Kitamoto, T. Kanenari, A. Sato, T. Hattori, S. Oi, T. Yanagida, Y. Fujimoto, K. Asai

    The 16th Asian Conference on Organic electronics (A-COE 2024)　2024/11/20

  7. Preparation of solid-state electrolytes from lithium and boroxine compounds and evaluation of their lithium-ion conductivities

    Yohei Kitani, Yuichi Kitamoto, Shunsuke Yamamoto, Tetsutaro Hattori

    2024/09/15

  8. Highly fluorescent nanoparticles of triaryl borane-based intramolecular charge transfer-type emitters

    Maya Atsumi, Yuichi Kitamoto, Tetsutaro Hattori

    2024/09/15

  9. Complexation of heteroatom-bridge-type planar tyiphenylboranes with various anions and application as lithium solid electrolytes

    2024/09/12

  10. Scintillation originating from triplet excited states in plastic scintillators containing fluorescent molecules exhibiting thermally activated delayed fluorescence (TADF) International-presentation

    10th International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA 2024)　2024/06/24

  11. Synthesis of N,S-bridge-type planar tryphenylboranes exhibiting narrowband bluish-violet and deep-blue delayed fluorescence

    2024/05/18

  12. O,O-Bridge-type triphenylboranes exhibiting narrowband delayed fluorescence: enhancement of reverse intersystem crossing by changing the substituents at the 3 - and 19-positions

    2024/03/19

  13. Photoracemization of axially chiral 4,4ʹ-dimethoxy-1,1ʹ-biphenanthrene-2,2ʹ-diol: Inhibitory effect of its analogs and additives on racemization

    2024/03/20

  14. Preparation of planar triphenylborane nanoparticles and their application to boron neutron capture therapy

    2024/03/21

  15. 多機能な含ホウ素（多環）芳香族炭化水素の開発：合成＋分子物性＋α Invited

    北本雄一

    分子集合体化学研究発表会　2024/03/10

  16. Synthesis of N,N-bridge-type triphenylboranes with blue narrowband TADF emission via directed-lithiation/borylation

    2023/09/14

  17. Borylation of alkenes catalyzed by rhodium(III) tetraphenylporphyrin (TPP): Controlling the competition between β-hydride elimination and reductive elimination International-presentation

    Y. Mizusawa, T. Koyama, Y. Kitamoto, S. Tanaka, T. Hattori

    International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan (2023 Joint Meeting of the Tohoku Area Chemistry Societies)　2023/09/10

  18. Photoracemization of 4,4'-dimethoxy-2,2'-biphenanthrene-1,1'-diol : Effect of their analogs on the racemization behavior International-presentation

    K. Maruyama, Y. Ishiyama, D. Kanai, Y. Kitamoto, T. Hattori

    International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan (2023 Joint Meeting of the Tohoku Area Chemistry Societies)　2023/09/10

  19. Preparation of nanoparticles from triphenylboranes bridged by oxo and phenylimino groups and evaluation of their photophysical properties and cell viability International-presentation

    I. Koyama, Y. Kitamoto, Y. Koseki, A. Mizutani, H. Kasai, T. Hattori

    International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan (2023 Joint Meeting of the Tohoku Area Chemistry Societies)　2023/09/10

  20. Heteroatom-bridge-type planar triphenylboranes: synthesis and exploiting Lewis acid–base complexes and photophysical properties for functions International-presentation Invited

    Yuichi Kitamoto

    International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan (2023 Joint Meeting of the Tohoku Area Chemistry Societies)　2023/09/08

    More details Close

    Requested Lecture

  21. Carbazole-embedded N,N-bridge-type triphenylboranes: Synthesis and evaluation of delayed fluorescence International-presentation

    N. Sakaida, Y. Kitamoto, T. Hattori

    International Symposium for the 80th Anniversary of the Tohoku Branch of the Chemical Society of Japan (2023 Joint Meeting of the Tohoku Area Chemistry Societies)　2023/09/08

  22. Control over Supramolecular Chirality through Photo-regulated Heterogeneity during Nucleation Process International-presentation

    T. Saito, D. Inoue, Y. Kitamoto, S. Yagai

    The 13th SPSJ International Polymer Conference (IPC2023)　2023/07/21

  23. Borylation of alkenes catalyzed by a rhodium porphyrin complex: Inhibition of intramolecular reductive elimination by constraining the coordination field

    2023/04/22

  24. 架橋型トリアリールボランからなる熱活性化遅延蛍光材料の開発 Invited

    北本雄一, 小川敦也, 稲川雅也, 髙秀雄, 北弘志, 服部徹太郎

    応用物理学会 極限的励起状態の形成と量子エネルギー変換研究グループ 第10回研究会（兼 第26回次世代先端光化学研究会）　2023/04/07

  25. Complexation of oxygen-bridged planar triphenylborane with various anions and application as solid electrolytes

    2023/03/25

  26. ヘテロ元素架橋型トリフェニルボラン類の合成と機能性材料への展開 Invited

    北本雄一

    令和4年度東北地区先端高分子セミナー　2023/03/07

  27. 熱活性化遅延蛍光分子添加プラスチックシンチレータのエネルギー収率の解析

    佐藤敦史, 越水正典, 北本雄一, 渡邊晶斗, 渡辺賢一, 柳田健之, 服部徹太郎, 大井秀一, 藤本裕, 浅井圭介

    極限的励起状態の形成および量子エネルギー変換研究グループ 第8回研究会（兼 第24回次世代先端光科学研究会）　2022/12/19

  28. Harvesting triplet excited states in plastic scintillators using thermally activated delayed fluorescence International-presentation

    A. Sato, M. Koshimizu, Y. Kitamoto, A. Watanabe, K. Watanabe, T. Yanagida, T. Hattori, S. Oi, Y. Fujimoto, K. Asai

    IRaP 2022 (The Ionizing Radiation and Polymers symposium 2022)　2022/09/29

  29. Development of plastic scintillators doped with thermally activated delayed fluorescence molecules for light yield improvement

    2022/09/23

  30. O,O-, N,O-, N,N-架橋型トリフェニボラン類の合成と蛍光特性の評価

    北本雄一, 小川敦也, 稲川雅也, 小田一磨, 髙秀雄, 檜山邦雄, 北弘志, 大井秀一, 服部徹太郎

    第32回基礎有機化学討論会　2022/09/22

  31. Synthesis of N,O-bridge-type triphenylboranes and evaluation of delayed fluorescence properties

    2022/09/18

  32. 光による超分子キラリティの反転を示すアゾベンゼンダイアドの自己集合における二次核形成の役割

    齋藤卓穂, 北本雄一, 井上大輔, 矢貝史樹

    第71回高分子討論会　2022/09/07

  33. 高色純度遅延蛍光を示すN,N-架橋型トリフェニルボラン類の合成

    稲川雅也, 小川敦也, 北本雄一, 小田一磨, 一杉俊平, 髙秀雄, 檜山邦雄, 北弘志, 大井秀一, 服部徹太郎

    第33回万有仙台シンポジウム　2022/05/21

  34. Photo-induced Reversal of Supramolecular Chirality

    T. Saito, D. Inoue, Y. Kitamoto, S. Yagai

    2022/03/26

  35. Borylation of alkenes catalyzed by rhodium porphyrin complexes

    2022/03/23

  36. N,N-Bridge-type triphenylboranes: Synthesis and evaluation of delayed fluorescence properties with high color purity

    2022/03/25

  37. Light-Controlled Nucleation Process Leading to Inversion of Supramolecular Chirality International-presentation

    T. Saito, Y. Kitamoto, S. Yagai

    Pacifichem 2021 (PACIFIC BASIN SOCIETIES 2021)　2021/12/20

  38. Synthesis and properties of heteroatom-bridged planar triphenylboranes and related compounds Invited

    Y. Kitamoto

    2021/10/03

  39. N,O-hybrid-bridge-type planar triphenylboranes: Synthesis and effects of the bridging atoms on their photophysical properties and Lewis acidity

    2021/10/03

  40. N,O-Hybrid-bridge-type planar triphenylboranes: Synthesis and effects of the hybrid bridges on their optical properties

    2021/03/20

  41. Synthesis and optical and Lewis acidic properties of planar triphenylborane with the phenyl groups bridged by oxo and phenylimino groups

  42. Investigation of Lewis acidic character of oxygen-bridged planarized triphenylborane and the properties of their Lewis acid–base adducts

    2020/03/22

  43. 光異性化を利用した超分子キラリティの反転

    齋藤卓穂, 井上大輔, 北本雄一, 矢貝史樹

    WCCU第7回シンポジウム　2020/01/24

  44. Inversion of Supramolecular Chirality by Photoisomerization

    T. Saito, D. Inoue, Y. Kitamoto, S. Yagai

    2019/11/27

  45. 光を利用した超分子キラリティの反転

    齋藤卓穂, 井上大輔, 北本雄一, 矢貝史樹

    第9回CSJ化学フェスタ2019　2019/10/15

  46. Photoinduced Inversion of Supramolecular Chirality

    2019/09/27

  47. 光照射により導かれるV字型アゾベンゼンダイアドの特異的応答

    齋藤卓穂, 井上大輔, 北本雄一, 矢貝史樹

    第40回光化学若手の会　2019/06/15

  48. 光異性化による超分子キラリティの制御

    齋藤卓穂, 井上大輔, 北本雄一, 矢貝史樹

    千葉大学分子キラリティー研究センターMCRCポスター発表会　2019/05/16

  49. Enantioselective inclusion of sulfonate salts of amino acids with the crystal of α-cyclodextrin

    2019/03/19

  50. Supramolecular copolymers realized by inhomogeneous monomer composition along main chains

    Y. Kitamoto, Z. Pan, D. D. Prabhu, S. Yagai

    2019/03/18

  51. Inversion of supramolecular chirality: Impact of nucleation process and photo-induced self-assembly International-presentation

    Y. Kitamoto, D. Inoue, S. Yagai

    Conjugated Molecular Bricolage for Functional Materials: Extended Electron Conjugation beyond π-Systems　2018/11/24

  52. 超分子ディスク中間体によって実現する超分子ブロック共重合体のワンポット調製

    潘梓妍, 北本雄一, D. D. Prabhu, 矢貝史樹

    第8回CSJ化学フェスタ2018　2018/10/25

  53. 光を利用した核形成プロセス制御による超分子キラリティの反転

    矢貝史樹, 北本雄一, 井上大輔

    第67回高分子討論会　2018/09/13

  54. 超分子ディスク中間体によって実現する超分子ブロック共重合体のワンポット調製

    潘梓妍, 北本雄一, D. D. Prabhu, 矢貝史樹

    第67回高分子討論会　2018/09/13

  55. Inversion of Supramolecular Chirality by Photoinduced Pathway Selection in Self-Assembly Process

    2018/05/12

  56. Tuning the topology of one dimensional supramolecular polymers by modification of π-conjugated moiety

    Y. Kitamoto, Z. Pan, D. D. Prabhu, S. Yagai

    2018/03/20

  57. Control of the topology of one dimensional supramolecular polymers by modification of π-conjugated moiety International-presentation

    Y. Kitamoto, P. Ziyan, D. D. Prabhu, S. Yagai

    The Second Symposium of Chiral Molecular Science and Technology in Chiba University ‒Advanced Materials Science, Biology & Nanophotonics in Chiba‒　2018/01/10

  58. Synthesis and properties of an oxygen-bridged planarized triphenylborane

    2017/03/19

  59. Thermally activated delayed fluorescence molecules bearing a 10H-phenoxaboryl group as an acceptor and their application to highly efficient organic light-emitting diodes

    2016/09/11

  60. カリックスアレーン分子結晶を用いた有機分子包接におけるゲスト選択性制御

    諸橋直弥, 三好幾子, 外崎綾乃, 大杉加寿左, 北本雄一, 服部徹太郎

    第13回ホスト・ゲスト化学シンポジウム　2015/07/06

  61. α-シクロデキストリン分子結晶によるアミノ酸の不斉選択的包接

    三好幾子, 北本雄一, 諸橋直弥, 服部徹太郎

    第13回ホスト・ゲスト化学シンポジウム　2015/07/06

  62. CIDT of an α-amino lactam in a liquid phase formed at the crystal interface by contact with vapor

    2016/06/13

  63. Photoracemization of 4,4′-dimethoxy-2,2′-biphenanthrene-1,1′-diol and its stereoselective inhibition

    2016/06/07

  64. Enantioselective inclusion of amino acids with molecular crystal of α-cyclodextrin

    2016/06/06

  65. チアカリックスアレーン結晶を用いた有機小分子捕集における選択性制御

    諸橋直弥, 三好幾子, 大杉加寿左, 北本雄一, 田中信也, 服部徹太郎

    日本化学会第94回春季年会　2014/03/28

  66. 不斉分子認識の誘電率制御に関する研究

    北本雄一, 三好幾子, 諸橋直弥, 服部徹太郎

    28th有機合成化学若手研究者の仙台セミナー　2013/12/07

  67. チアカリックス[4] アレーン結晶によるアミンの包接と選択性制御

    諸橋直弥, 柴田大空, 三好幾子, 北本雄一, 服部徹太郎

    第22回有機結晶シンポジウム　2013/10/30

  68. Selective inclusion of methylamines with crystals of thiacalix[4]arene and its control by solvent permittivity International-presentation

    I. Miyoshi, Y. Kitamoto, O. Shibata, N. Morohashi, T. Hattori

    International Symposium for the 70th Anniversary of the Tohoku Branch of the Chemical Society of Japan　2013/09/28

  69. Control of Selectivity by Solvent Permittivity in Inclusion of Methylamines with Crystals of Thiacalix[4]arene International-presentation

    I. Miyoshi, Y. Kitamoto, O. Shibata, N. Morohashi, T. Hattori

    International Symposium of Chemical-Environmental-Biomedical Technology 2013　2013/09/09

  70. Control of chiral molecular recognition by making use of the effect of solvent permittivity on solid-liquid two phase partition: Optical resolution with an enzyme and host crystals

    2013/05/10

  71. Control of stereoselectivity by solvent permittivity in lipase-catalyzed kinetic resolution and its molecular mechanism International-presentation

    Y. Kitamoto, T. Hattori

    4th UK/Japan Conference in Catalytic Asymmetric Synthesis　2013/04/19

  72. Optical resolution of 1,1'-binaphthalene-2,2'-dicarboxylic acid by the diastereomer method: Control of deposited diastereomer by solvent permittivity and study of its molecular mechanism

    2013/03/24

  73. Field Control of Asymmetric Molecular Recognition: Control of Stereoselectivity by the Permittivity of Solvent in Lipase-catalyzed Kinetic Resolution

    2013/03/22

  74. Field Control of Chiral Discrimination: Dependence of Enantioselectivity on Solvent Permittivity in Lipase-Catalyzed Kinetic Resolution International-presentation

    Y. Kitamoto, T. Hattori, S. Miyano

    The 7th International Forum on Chemistry of Function Organic Chemicals　2012/11/19

  75. Control of Asymmetric Molecular Recognition by the Dielectric Constant of Solvent: Lipase-catalyzed Kinetic Resolution of Alcohols International-presentation

    Y. Kitamoto, T. Hattori

    Campus Asia Program Summer School 2012　2012/08/21

  76. Control of Stereoselectivity by the Dielectric Constant of Solvent in Lipase-Catalyzed Kinetic Resolution International-presentation

    Y. Kitamoto, N. Morohashi, T. Hattori

    Symposium on Molecular Chirality Asia 2012　2012/05/17

  77. Dependence of stereoselectivity on the dielectric constant of solvent in enzyme-catalyzed kinetic resolution of 1-(2-naphthyl)ethano

    2012/03/26

  78. 溶媒の誘電率による不斉分子認識の制御－1,1'-ビナフタレン-2,2'-ジカルボン酸の誘電率制御分割

    北本雄一, 諸橋直弥, 服部徹太郎

    第8回8大学博士交流フォーラム　2011/11/25

  79. 酵素による速度分割における立体選択性の誘電率依存性

    北本雄一, 諸橋直弥, 服部徹太郎

    平成23年度化学系学協会東北大会　2011/09/17

  80. 溶媒の誘電率による不斉分子認識の制御－酵素による1-(2-ナフチル)エタノールの速度論的光学分割

    北本雄一, 諸橋直弥, 服部徹太郎

    第28回有機合成化学セミナー　2011/09/01

  81. Crystallization-based resolution of 1,1'-binaphthalene-2,2'-dicarboxylic acid via 1-phenylethylamides: Controlled by the dielectric property of solvent International-presentation

    Y. Kitamoto, K. Yamane, N. Morohashi, T. Hattori

    Summer School of Global Center of Excellence Program 2011　2011/08/18

  82. Crystallization-based resolution of 1,1'-binaphthalene-2,2'-dicarboxylic acid via 1-phenylethylamide: Control by molecular structure and dielectric property of solvent International-presentation

    Y. Kitamoto

    5th International Symposium on Chemical-Environmental-Biomedical Technology for Young Researchers　2010/09/06

  83. Crystallization based optical resolution of 1,1'-binaphthalene-2,2'-dicarboxylic acid via 1-phenylethyl amides: Control by the dielectric property of solvent and crystallization temperature International-presentation

    Y. Kitamoto, K. Yamane, N. Morohashi, T. Hattori

    22nd International Symposium on Chirality　2010/07/13

  84. 1,1'-ビナフタレン-2,2'-ジカルボン酸のジアステレオマー法による光学分割－再結晶溶媒の誘電率と温度による晶析ジアステレオマーの制御

    北本雄一, 山根一晃, 諸橋直弥, 服部徹太郎

    第21回万有仙台シンポジウム　2010/06/05

  85. 誘電率制御分割（DCR）法の共有結合性ジアステレオマーへの適用と機構解明

    北本雄一, 鈴木かずみ, 加藤佑樹, 諸橋直弥, 服部徹太郎

    第96回有機合成シンポジウム　2009/11/05

  86. Extension of Dielectrically Controlled Resolution (DCR) Method to Covalent Diastereomer-Based Resolution

    2009/05/12

  87. 1,1'-ビナフタレン-2,2'-ジカルボン酸の誘電率制御光学分割

    北本雄一, 鈴木かずみ, 加藤佑樹, 諸橋直弥, 服部徹太郎

    平成21年度化学系学協会東北大会　2008/10/12

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Industrial Property Rights 7

  1. TRIARYLBORON COMOUND, ORGANIC ELECTROLUMINESCENCE ELEMENT, DISPLAY DEVICE, AND LIGHTING DEVICE

    Kohei Ogino, Kazuma Oda, Shuichi Oi, Yuichi Kitamoto, Testutaro Hattori

    Property Type: Patent

  2. ORGANIC BORANE COMPLEX , COMPOSITION CONTAINING ORGANIC BORANE , AND ORGANIC ELECTROLUMINESCENT ELEMENT

    Takatsugu Suzuki, Hiroshi Kita, Yuichi Kitamoto, Shuichi Oi

    特許US 2021/0292342 A1

    Property Type: Patent

  3. -Conjugated boron compound, electronic device, and methods respectively for producing triarylborane and intermediate thereof

    Hiroshi Kita, Takayuki Iijima, Shuichi Oi, Yuichi Kitamoto

    Property Type: Patent

  4. I - CONJUGATED BORON COMPOUND , ELECTRONIC DEVICE , AND METHODS RESPECTIVELY FOR PRODUCING TRIARYLBORANE AND INTERMEDIATE THEREOF

    Hiroshi Kita, Takayuki Iijima, Shuichi Oi, Yuichi Kitamoto

    特許US 11,476,427 B2

    Property Type: Patent

  5. π共役系化合物の製造方法

    飯島孝之, 大井秀一, 北本雄一

    Property Type: Patent

  6. 有機エレクトロルミネッセンス素子，照明装置，及びπ共役系化合物

    並川威人, 大井秀一, 北本雄一

    Property Type: Patent

  7. Organic borane complex, composition containing organic borane, and organic electroluminescent element

    Takatsugu Suzuki, Hiroshi Kita, Yuichi Kitamoto, Shuichi Oi

    特許WO 2018/074167 A1

    Property Type: Patent

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Research Projects 6

  1. 連続的金属－ホウ素交換反応が実現する高色純度遅延蛍光性トリアリールボラン類の創出

    北本 雄一

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業 基盤研究(C)

    Category: 基盤研究(C)

    Institution: 東北大学

    2023/04 - 2026/03

  2. 種々の元素で架橋したプラナーボラン類の創製とプラナーボラン二量体ホストの機能開発

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists

    Category: Grant-in-Aid for Early-Career Scientists

    Institution: Tohoku University

    2020/04 - 2023/03

  3. Exploration of photocontrollable pathway complexity

    Yagai Shiki, INOUE Daisuke, KITAMOTO Yuichi

    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: Chiba University

    2016/04 - 2019/03

    More details Close

    A supramolecular chirality emerging through the self-assembly of chiral molecules has been controlled by molecular geometry change of photochromic molecules. It has been demonstrated that the supramolecular chirality are very sensitive to the nucleation mechanism of molecules. The nucleation mechanism can be more easily controlled by the direct molecular geometry change of photochromic molecules, rather than the indirect control of molecular self-assembly by temperature control that definitely involves gradient.

  4. Multicomponent pi-Assembly Figuration

    Yagai Shiki, YAMAUCHI Mitsuaki, ARATSU Keisuke, OUCHI Hayato, ADHIKARI Bimalendu, PRABHU Deepak D., KITAMOTO Yuichi

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

    Institution: Chiba University

    2014/07 - 2019/03

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    In this study, based on two self-assembly motifs, i.e., "stackable nanorings" and "discrete nanorings", we examined the introduction of photoresponsive sites and the mixing of different molecules, and succeeded in constructing various complex self-assembly systems. By collaborating with many researchers in the pi-figuration, we were able to perform structural analyses that were previously inaccesible. Supramolecular polymers obtained by further developing discrete nanorings containing intrinsic curvatures not only have higher order structures reminiscent of proteins, but also are innovative nanomaterials that exhibit external stimulation or spontaneous unfolding/folding phenomena. In the future, further development of this system is expected as unprecedented “topological supramolecular polymers” .

  5. 熱活性化遅延蛍光を利用したプラスチックシンチレータの高性能化

    越水正典(代表),藤本裕(研究協力者),北本雄一(研究協力者)

    Offer Organization: 小笠原敏晶記念財団

    System: 一般研究助成

  6. 高色純度青色熱活性化遅延蛍光を示すヘテロ元素架橋型トリフェニルボランの開発

    北本雄一

    Offer Organization: 公益財団法人 天野工業技術研究所

    System: 研究助成

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Teaching Experience 10

  1. 創造工学研修 Undergraduate (liberal arts)

  2. 応用生命化学特論（分担：2021年、2023年、2025年）（東北大学） Postgraduate

  3. 環境分子化学（分担）（東北大学）

  4. 化学・バイオ工学実験A（分担）（東北大学） Undergraduate (specialized)

  5. 化学・バイオ工学演習B（分担）（東北大学） Undergraduate (specialized)

  6. 化学・バイオ工学セミナー（東北大学） Undergraduate (specialized)

  7. 化学・バイオ工学研修（東北大学） Undergraduate (specialized)

  8. 化学・バイオ工学卒業研修A・B（東北大学） Undergraduate (specialized)

  9. バイオ工学修士研修（東北大学） Postgraduate

  10. 化学・バイオ工学Ⅱ（分担）（東北大学） Undergraduate (specialized)

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Social Activities 1

  1. 宮城県仙台第三高等学校－東北大学工学部研修

    2022/07/11 -

Media Coverage 1

  1. 異なる“かたち”が共存するキメラ型超分子コポリマーを造る

    Chem-Station

    2020/04

    Type: Internet