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Development and study of new pyroelectric / ferroelectric molecular materials based on intramolecular electron transfer

Research Project

Project/Area Number 21K05086
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 34010:Inorganic/coordination chemistry-related
Research InstitutionKyushu University

Principal Investigator

Kanegawa Shinji  九州大学, 先導物質化学研究所, 助教 (20516463)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords極性結晶 / キラリティ / 分子磁性 / 焦電特性 / 光応答性 / 複核錯体分子 / 外場応答性 / 非対称複核錯体 / 光誘起焦電流 / 光応答焦電性 / 分子誘電性
Outline of Research at the Start

本研究では、分子内電子移動を起源とする新機構焦電・強誘電特性の開発と特性解明を目指す。我々は外場応答性磁性分子において、分子内電子移動に基づく新機構の焦電電流が観測されることを見出している。このような分子系を対象として、合成手法を駆使した系統的な分子化学的アプローチを駆使することで、その機構の詳細を解明すると共に、外場に応答する磁性体(スピン)から新奇誘電材料(電荷)への展開を視野に研究を推進する。

Outline of Final Research Achievements

We synthesized a series of compounds with novel electronic pyroelectric properties using a synthesis strategy for heteronuclear dinuclear complexes that utilizes molecular chirality. Two significant achievements can be highlighted:- The discovery of a wide temperature range pyroelectric effect in the [FeCo] complex due to electronic redistribution.- The demonstration of light-responsive pyroelectric properties in the [CoGa] complex and the proposal of a new mechanism for light-electric energy conversion.Additionally, we successfully synthesized new ligands, expanding the possibilities for molecular design.

Academic Significance and Societal Importance of the Research Achievements

本研究において, これまでに例のない新奇な焦電物性を示す物質群の発見は, 電子構造と物性の関係を解明する上で重要な進展といえる。これらの成果は, 新規物質の設計指針を提供し, 磁性―誘電性複合物性研究分野の新たなフロンティアを開拓したといえる。
社会的意義としては, これらの新規焦電材料が環境・エネルギー問題の解決に貢献する可能性があげられる。特に, 光―電気エネルギー変換の新しい機構の提案は, 次世代のエネルギーハーベスティング技術の発展に寄与すると期待している。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (8 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 8 results,  Open Access: 2 results) Presentation (3 results)

  • [Int'l Joint Research] Yangzhou University(中国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Polar Crystals Using Molecular Chirality: Pseudosymmetric Crystallization toward Polarization Switching Materials2024

    • Author(s)
      Kanegawa Shinji、Wu Shu-Qi、Zhou Ziqi、Shiota Yoshihito、Nakanishi Takumi、Yoshizawa Kazunari、Sato Osamu
    • Journal Title

      Journal of the American Chemical Society

      Volume: -

    • DOI

      10.1021/jacs.4c02882

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photo-induced valence tautomerism and polarization switching in mononuclear cobalt complexes with an enantiopure chiral ligand2024

    • Author(s)
      Xu Wen-Huang、Huang Yu-Bo、Zheng Wen-Wei、Su Sheng-Qun、Kanegawa Shinji、Wu Shu-Qi、Sato Osamu
    • Journal Title

      Dalton Transactions

      Volume: 53 Issue: 6 Pages: 2512-2516

    • DOI

      10.1039/d3dt03915c

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Electrically Detectable Photoinduced Polarization Switching in a Molecular Prussian Blue Analogue2023

    • Author(s)
      Huang Yu-Bo、Li Jun-Qiu、Xu Wen-Huang、Zheng Wenwei、Zhang Xiaopeng、Gao Kai-Ge、Ji Tianchi、Ikeda Taisuke、Nakanishi Takumi、Kanegawa Shinji、Wu Shu-Qi、Su Sheng-Qun、Sato Osamu
    • Journal Title

      Journal of the American Chemical Society

      Volume: 146 Issue: 1 Pages: 201-209

    • DOI

      10.1021/jacs.3c07545

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Magnetoelectricity Enhanced by Electron Redistribution in a Spin Crossover [FeCo] Complex2023

    • Author(s)
      Zhang Xiaopeng、Xu Wen-Huang、Zheng Wenwei、Su Sheng-Qun、Huang Yu-Bo、Shui Qirui、Ji Tianchi、Uematsu Mikoto、Chen Qian、Tokunaga Masashi、Gao Kaige、Okazawa Atsushi、Kanegawa Shinji、Wu Shu-Qi、Sato Osamu
    • Journal Title

      Journal of the American Chemical Society

      Volume: 145 Issue: 29 Pages: 15647-15651

    • DOI

      10.1021/jacs.3c02977

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Energy conversion and storage via photoinduced polarization change in non-ferroelectric molecular [CoGa] crystals2023

    • Author(s)
      Sadhukhan Pritam、Wu Shu-Qi、Kanegawa Shinji、Su Sheng-Qun、Zhang Xiaopeng、Nakanishi Takumi、Long Jeremy Ian、Gao Kaige、Shimada Rintaro、Okajima Hajime、Sakamoto Akira、Chiappella Joy G.、Huzan Myron S.、Kroll Thomas、Sokaras Dimosthenis、Baker Michael L.、Sato Osamu
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 3394-3394

    • DOI

      10.1038/s41467-023-39127-8

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Photoinduced Persistent Polarization Change in a Spin Transition Crystal2022

    • Author(s)
      Su Sheng‐Qun、Wu Shu‐Qi、Huang Yu‐Bo、Xu Wen‐Huang、Gao Kai‐Ge、Okazawa Atsushi、Okajima Hajime、Sakamoto Akira、Kanegawa Shinji、Sato Osamu
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 61 Issue: 39

    • DOI

      10.1002/anie.202208771

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Macroscopic Polarization Change of Mononuclear Valence Tautomeric Cobalt Complexes Through the Use of Enantiopure Ligand2022

    • Author(s)
      Cheng Feng、Wu Shuqi、Zheng Wenwei、Su Shengqun、Nakanishi Takumi、Xu Wenhuang、Sadhukhan Pritam、Sejima Hibiki、Ikenaga Shimon、Yamamoto Kaoru、Gao Kaige、Kanegawa Shinji、Sato Osamu
    • Journal Title

      Chemistry ? A European Journal

      Volume: 28 Issue: 59

    • DOI

      10.1002/chem.202202161

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Manipulating electron redistribution to achieve electronic pyroelectricity in molecular [FeCo] crystals2021

    • Author(s)
      Pritam Sadhukhan, Shu-Qi Wu, Jeremy Ian Long, Takumi Nakanishi, Shinji Kanegawa, Kaige Gao, Kaoru Yamamoto, Hajime Okajima, Akira Sakamoto, Michael L. Baker, Thomas Kroll, Dimosthenis Sokaras, Atsushi Okazawa, Norimichi Kojima, Yoshihito Shiota, Kazunari Yoshizawa, and Osamu Sato
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 4836-4836

    • DOI

      10.1038/s41467-021-25041-4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 原子価互変異性を示す複核錯体分子結晶の磁気及び電気物性2023

    • Author(s)
      金川 慎治,プリタム サドゥカーン,佐藤 治
    • Organizer
      第17回分子科学討論会2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 非対称構造を持つ新規[CrCo]複核錯体の合成と動的電子物性2022

    • Author(s)
      前田朱里、金川慎治、佐藤 治
    • Organizer
      第59回化学関連支部合同九州大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Molecular Pyroelectricity via Directional Electron Transfer in Polar Crystals2021

    • Author(s)
      Pritam, S.; Sato, O; Kanegwa, S.; Wu, SQ.
    • Organizer
      第71回 錯体化学討論会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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