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Development of Photo-functional Materials Based on Interactions between Chelete and Nonchelate Ligands of Typical Element Complexes

Research Project

Project/Area Number 21K14673
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 35010:Polymer chemistry-related
Research InstitutionKyoto University

Principal Investigator

Ito Shunichiro  京都大学, 地球環境学堂, 助教 (30875711)

Project Period (FY) 2021-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords典型元素錯体 / 発光 / 合成化学 / 錯体化学 / 高分子化学 / 光電子物性 / 配位子間相互作用 / 高分子合成 / 13族元素 / リン光 / 共役系高分子 / 光物性
Outline of Research at the Start

典型元素錯体は光吸収・発光特性などの優れた光・電子的性質をもち、これらの性質の効果的な制御手法の確立が求められている。典型元素錯体は、典型元素のイオンと配位子という有機骨格から構成されている。これまで異種の配位子の間にはたらく電子的相互作用は物性制御に使われてこなかった。本研究は、典型金属錯体の中に観測される、配位子間の電子的相互作用という新しい現象に着目し、錯体の光・電子物性を制御することを目的とする。これにより、固体発光性の付与や室温リン光性、近赤外発光特性、鋭敏な刺激応答性など、高性能光電子素子や次世代イメージング材料の開発のために有用な分子設計指針の構築につながる。

Outline of Final Research Achievements

Luminescent complexes composed of typical elements and organic moieties exhibit superb functional properties such as phosphorescence and stimuli responsiveness. Their luminescence properties have been tuned by modulating their chelate ligands of organic pi-electron systems. In contrast, it has not been clarified how to adjust their properties by altering the non-chelate ligands on the central element. Herein, this work has focused on developing new strategies for functionalizing complexes based on electronic interactions between chelate and non-chelate ligands. It has been demonstrated that the energy gap between these ligands, stereoelectronic effects, and the bonding nature between ligands and a metal atom should play a key role in modulating the photophysical properties of complexes.

Academic Significance and Societal Importance of the Research Achievements

本研究では、従来用いられてこなかった錯体の物性制御手法である、非キレート配位子に着目し、これとキレート配位子との相互作用を精密に調整することで錯体の物性を制御できることを明らかとした。これは、本研究で中心的な対象とした光機能性のみならず、触媒機能や電気電子物性の制御などにも広く応用展開できる手法であり、物質探索の可能性を広く拡張するという点で、学術的にも産業的にも意義深いものである。

Report

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

    (20 results)

All 2023 2022 2021

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (14 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Book (2 results)

  • [Journal Article] Effects of Regioregularity of <i>π</i> ‐Conjugated Polymers Composed of Boron <i>β</i> ‐Diketiminate on Their Stimuli‐Responsive Luminescence2022

    • Author(s)
      Ito Shunichiro、Fukuyama Misuzu、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Macromolecular Chemistry and Physics

      Volume: - Issue: 9 Pages: 2100504-2100504

    • DOI

      10.1002/macp.202100504

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Near-infrared-emissive π-conjugated polymers based on five-coordinated silicon formazanate complexes2022

    • Author(s)
      Ito Shunichiro、Ito Yoshinori、Kazuo Tanaka、Chujo Yoshiki
    • Journal Title

      Polymer

      Volume: 239 Pages: 124463-124463

    • DOI

      10.1016/j.polymer.2021.124463

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Reversible Vapochromic Luminescence Accompanied by Planar Half‐Chair Conformational Change of a Propeller‐Shaped Boron β‐Diketiminate Complex2021

    • Author(s)
      Ito Shunichiro、Yaegashi Misao、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Chemistry ? A European Journal

      Volume: 27 Issue: 36 Pages: 9302-9312

    • DOI

      10.1002/chem.202101107

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] π-Conjugated Copolymers Composed of Boron Formazanate and Their Application for a Wavelength Converter to Near-Infrared Light2021

    • Author(s)
      Kawano Yuki、Ito Yoshinori、Ito Shunichiro、Tanaka Kazuo、Chujo Yoshiki
    • Journal Title

      Macromolecules

      Volume: 54 Issue: 4 Pages: 1934-1942

    • DOI

      10.1021/acs.macromol.0c02315

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Photoluminescence and Stimuli Responsiveness of Group 13 Element Complexes and Their Conjugated Polymers2023

    • Author(s)
      Shunichiro Ito, Kazuo Tanaka, Yoshiki Chujo
    • Organizer
      The 13th SPSJ International Polymer Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ジアルジミンホウ素錯体からなる共役系ホモポリマーの合成と疎溶媒効果による発光強度変化2023

    • Author(s)
      伊藤 峻一郎, 田中 一生, 中條 善樹
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Substituents on Boron of Organoboron Complexes Modulates Luminescent Properties via Excited Triplet States2023

    • Author(s)
      Shunichiro Ito, Keisuke Suwa, Kazuo Tanaka, Yoshiki Chujo
    • Organizer
      第103回日本化学会春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Functional Solid-State Luminescent Materials Based on Diiminate Complexes of Group 13 Elements and Their π-Conjugated Polymers2022

    • Author(s)
      Shunichiro Ito
    • Organizer
      Japan-US Workshop on Organic/Inorganic Hybrid Materials
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 共役系高分子化によるジイミンホウ素錯体の刺激応答性発現2022

    • Author(s)
      伊藤 峻一郎, 田中 一生, 中條 善樹
    • Organizer
      第41回無機高分子研究討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 13 族元素β-ジイミン錯体の配位子構造変換による項間交差プロセスの 制御2022

    • Author(s)
      伊藤 峻一郎, 諏訪 圭亮, 田中 一生, 中條 善樹
    • Organizer
      2022年光化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ホウ素錯体からなる発光性元素ブロックの設計と高分子化による機能創出2022

    • Author(s)
      伊藤 峻一郎, 田中 一生, 中條 善樹
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] N2 型リガンドを用いた典型元素錯体の共役系高分子化と機能性発光材料の創出2022

    • Author(s)
      伊藤 峻一郎, 田中 一生, 中條 善樹
    • Organizer
      第71回高分子年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Synthesis and Functionalities of Luminescent Conjugated Polymers Based on Dialdiminate Boron Complexes2022

    • Author(s)
      Shunichiro Ito, Yuki Sakai, Miyako Hashizume, Kazuo Tanaka, Yoshiki Chujo
    • Organizer
      第102回日本化学会春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ジイミンホウ素錯体の一次構造制御による固体発光性共役系高分子の創成2021

    • Author(s)
      伊藤 峻一郎, 橋詰 都, 田中 一生, 中條 善樹
    • Organizer
      第70回高分子学会年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 典型元素錯体の配位子のエネルギー準位に着目した共役系高分子の光物性制御2021

    • Author(s)
      伊藤 峻一郎, 伊藤 嘉孝, 田中 一生, 中條 善樹
    • Organizer
      第70回高分子討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] 13族元素錯体を基軸とした刺激応答性発光材料の創出と応答性発現メカニズムの探究2021

    • Author(s)
      伊藤 峻一郎, 田中 一生, 中條 善樹
    • Organizer
      第40回無機高分子研究討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] 13族元素β-ジイミン錯体を基盤とした機能性発光材料2021

    • Author(s)
      伊藤 峻一郎, 田中 一生, 中條 善樹
    • Organizer
      環太平洋国際化学会議 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ジアルジミンホウ素錯体を基盤とした発光性共役系高分子の開発と機能創出2021

    • Author(s)
      伊藤峻一郎, 酒井優希, 橋詰都, 田中一生, 中條善樹
    • Organizer
      日本化学会第102春季年会
    • Related Report
      2021 Research-status Report
  • [Book] Aggregation-Induced Emission (AIE): A Practical Guide (Materials Today)2022

    • Author(s)
      Shunichiro Ito, Masayuki Gon, Kazuo Tanaka, Yoshiki Chujo
    • Total Pages
      696
    • Publisher
      Elsevier
    • Related Report
      2022 Annual Research Report 2021 Research-status Report
  • [Book] Handbook of Aggregation-Induced Emission, Volume 2: Typical AIEgens Design (Handbook of Aggregation-induced Emission, 2)2022

    • Author(s)
      Kazuo Tanaka, Masayuki Gon, Shunichiro Ito, Yoshiki Chujo
    • Total Pages
      624
    • Publisher
      Wiley
    • Related Report
      2022 Annual Research Report 2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2024-01-30  

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