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Fabrication of mixed-valance molecular devices based on switching charge configurations

Research Project

Project/Area Number 18K04890
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 28030:Nanomaterials-related
Research InstitutionUniversity of Hyogo

Principal Investigator

Keishiro Tahara  兵庫県立大学, 物質理学研究科, 助教 (50622297)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords混合原子価 / 分子デバイス / レドックス活性 / 外部刺激応答性 / 原子価間電荷移動 / 非イノセント配位子 / カテコール / フェロセン / 電荷分離 / 光励起 / トリアリールアミン / 分子内電荷移動 / 超分子
Outline of Final Research Achievements

In this study, we have developed new molecular mixed-valence compounds that can respond to external stimuli toward fabrication of molecular devices. We have explored synthetical methods for introducing external charges in close proximity to mixed-valence molecules such as dimers of triarylamine and ferrocene and triarylamine. A bulky boron-substituent was covalently introduced into ferrocene and triarylamine dimers, generating new mixed-valence states accompanied with charge separation and zwitterionization, respectively. It was found that positive charge distributions were biased in the dimer through electrostatic abstraction with negatively charged guest anions in the ground state and through reconstructing electronic structures in the excited state.

Academic Significance and Societal Importance of the Research Achievements

コンピューティングを省エネルギー化する革新的デバイスとして、量子セルオートマトンが提案されており、分子性の混合原子価化合物が候補として注目されている。混合原子価分子の電荷分布の制御に関する知見とセルオートマトン動作との関連性を明らかにした点で、学術的/社会的意義が大きいと考えられる。当初、分子デバイスは、既存のエレクトロニクスの延長線上の最小デバイスとして考案されていたが、本研究成果は、それだけに留まらず、新しい仕組みのデバイス創成のための基礎学理の確立に貢献すると考えられる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (15 results)

All 2020 2019 2018 Other

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Stimuli-responsive Mixed-valence Architectures: Synthetic Design and Interplay between Mobile and Introduced Charges2020

    • Author(s)
      Tahara Keishiro、Abe Masaaki
    • Journal Title

      Chemistry Letters

      Volume: 49 Issue: 5 Pages: 485-492

    • DOI

      10.1246/cl.200069

    • NAID

      130007840198

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Charge-Separated Mixed Valency in an Unsymmetrical Acceptor?Donor?Donor Triad Based on Diarylboryl and Triarylamine Units2019

    • Author(s)
      Tahara Keishiro、Koyama Haruya、Fujitsuka Mamoru、Tokunaga Ken、Lei Xu、Majima Tetsuro、Kikuchi Jun-Ichi、Ozawa Yoshiki、Abe Masaaki
    • Journal Title

      The Journal of Organic Chemistry

      Volume: 84 Issue: 14 Pages: 8910-8920

    • DOI

      10.1021/acs.joc.9b00836

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Zwitterionic Mixed Valence: Internalizing Counteranions into a?Biferrocenium Framework toward Molecular Expression of Half‐Cells in Quantum Cellular Automata2019

    • Author(s)
      Tahara Keishiro、Terashita Nazuna、Tokunaga Ken、Yabumoto Shiomi、Kikuchi Jun‐ichi、Ozawa Yoshiki、Abe Masaaki
    • Journal Title

      Chemistry - A European Journal

      Volume: 25 Issue: 60 Pages: 13728-13738

    • DOI

      10.1002/chem.201902840

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Small anion-assisted electrochemical potential splitting in a new series of bistriarylamine derivatives: organic mixed valency across a urea bridge and zwitterionization2019

    • Author(s)
      Tahara Keishiro、Nakakita Tetsufumi、Starikova Alyona A、Ikeda Takashi、Abe Masaaki、Kikuchi Jun-ichi
    • Journal Title

      Beilstein Journal of Organic Chemistry

      Volume: 15 Pages: 2277-2286

    • DOI

      10.3762/bjoc.15.220

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New pai-extended catecholato complexes of Pt(II) and Pd(II) containing a benzothienobenzothiophene (BTBT) moiety: synthesis, electrochemical behavior and charge transfer properties2019

    • Author(s)
      K. Tahara, Y. Ashihara, T. Higashino, Y. Ozawa, T. Kadoya, K. Sugimoto, A. Ueda, H. Mori and M. Abe
    • Journal Title

      Dalton Transactions

      Volume: 印刷中 Issue: 21 Pages: 7367-7377

    • DOI

      10.1039/c8dt05057k

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Synthesis and characterization of a new series of binuclear Pd(II) biscatecholato complexes: non-innocent ligand-based approach to a wide range of variation in near-infrared absorptions of mixed-valence complexes2018

    • Author(s)
      K. Tahara, T. Kadowaki, J. Kikuchi, Y. Ozawa, S. Yoshimoto and M. Abe
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 91 Issue: 11 Pages: 1630-1639

    • DOI

      10.1246/bcsj.20180187

    • NAID

      130007511400

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 有機半導体骨格を組み込んだカテコラトパラジウム及び白金錯体の合成と電荷移動特性2019

    • Author(s)
      芦原優也, 田原圭志朗, 角屋智史, 池田貴志, 小澤芳樹, 阿部正明
    • Organizer
      錯体化学会第69回討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] フェロセン部位を有する自己組織化単分子膜の作製と有機トランジスタの電荷捕獲層としての応用2019

    • Author(s)
      池田貴志, 田原圭志朗, 角屋智史, 芦原優也, 小澤芳樹, 阿部正明
    • Organizer
      錯体化学会第69回討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] Generation of Photo-Induced Mixed-Valence Subspecies with Charge-Separated Characters2019

    • Author(s)
      Keishiro Tahara, Yoshiki Ozawa, Masaaki Abe
    • Organizer
      4th FZU-OPU Joint International Symposium on Photocatalysis, Photofunctional Materials and Nano-Science & Technology
    • Related Report
      2019 Research-status Report
  • [Presentation] Construction of ferrocene self-assembled monolayers for nonvolatile organic field effect transistor memory devices2019

    • Author(s)
      Takashi Ikeda, Keishiro Tahara, Tomofumi Kadoya, Yoshiki Ozawa, Masaaki Abe
    • Organizer
      4th FZU-OPU Joint International Symposium on Photocatalysis, Photofunctional Materials and Nano-Science & Technology
    • Related Report
      2019 Research-status Report
  • [Presentation] 新規π拡張白金カテコラト錯体の合成と電気化学特性の評価2018

    • Author(s)
      芦原優也, 田原圭志朗, 東野寿樹, 角屋智史, 上田顕, 森初果, 小澤芳樹, 阿部正明
    • Organizer
      錯体化学会第68回討論会
    • Related Report
      2018 Research-status Report
  • [Presentation] Fabrication of external charge-responsive biferrocenium toward half-cells for quantum cellular automata2018

    • Author(s)
      Fabrication of external charge-responsive biferrocenium toward half-cells for quantum cellular automata
    • Organizer
      Internatinal Conference on Coordination Chemistry (ICCC2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 化学工業2018

    • Author(s)
      田原圭志朗、阿部正明
    • Total Pages
      6
    • Publisher
      化学工業
    • Related Report
      2018 Research-status Report
  • [Remarks] Researchmap

    • URL

      https://researchmap.jp/tahara297

    • Related Report
      2020 Annual Research Report
  • [Remarks] research map

    • URL

      https://researchmap.jp/tahara297

    • Related Report
      2019 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

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