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Establishment of a method for designing dimerization behavior of dynamic covalent radicals

Research Project

Project/Area Number 20H02726
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 33010:Structural organic chemistry and physical organic chemistry-related
Research InstitutionOsaka Metropolitan University (2022-2023)
Osaka Prefecture University (2020-2021)

Principal Investigator

Sakamaki Daisuke  大阪公立大学, 大学院理学研究科, 准教授 (60722741)

Co-Investigator(Kenkyū-buntansha) 藤原 秀紀  大阪公立大学, 大学院理学研究科, 教授 (70290898)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Keywords有機ラジカル / 動的共有結合 / 二量化 / 配位結合 / 芳香族アミン / フェロセン / 電子ドナー / 自己組織化 / 安定ラジカル / ジシアノメチルラジカル / アザアセン / πダイマー
Outline of Research at the Start

可逆な二量化―解離反応に基づいた動的共有結合性ラジカルユニットの開発をおこなう。ラジカルスピンの非局在化度合いをコントロールすることによって、σ結合による二量体の結合強度の幅広いレンジでの変調と、その極限として二量化様式をσ二量化からπ二量化へと変化させる分子設計指針の構築を目指す。また、σ二量化、π二量化それぞれの二量化様式を駆動力とする自己組織化集合体を構築し特異な機能・物性の発現を目指す。

Outline of Final Research Achievements

Covalent bonds, in which bond formation and cleavage are reversibly repeated, are called dynamic covalent bonds and are expected to be applied to the construction of molecular self-assembling systems and self-healing materials. Among them, the reversible dimerization-cleavage reaction of radicals has recently attracted much attention as the simplest motif of dynamic covalent bonding because it does not involve catalysts or by-products. We have demonstrated that linking an electron-donating substituent, such as an amine, to a dicyanomethyl radical leads to highly reversible dynamic covalent bonding. In this study, we extended this knowledge to the development of dynamically covalent radicals with redox and coordination bonding abilities.

Academic Significance and Societal Importance of the Research Achievements

これまでに動的共有結合性を示すラジカルは数多く知られていたが、配位結合や水素結合などの共有結合とは別種の相互作用を、可逆的な共有結合形成-開裂と同時に示すラジカルは知られていなかった。本研究で我々は、ピリジルアミノ基と共役したジシアノメチルが、パラジウムイオンへの配位結合と動的な共有結合の両方を示すことを実証した。この結果から、ラジカルの可逆な結合開裂と金属イオンへの錯形成-解離が互いを邪魔せずに両立することが示され、新たな分子材料の開発指針となると考えられる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (24 results)

All 2024 2023 2022 2021 2020

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 1 results) Presentation (14 results)

  • [Journal Article] Synthesis, Structures, Electrochemical and Optical Properties of Vinyl‐Extended Tetrathiafulvalene Derivatives Functionalized with Two 2,6‐Dicyano‐<i>λ</i><sup>5</sup>‐Phosphinine Units2024

    • Author(s)
      Misaki Tomoya、Yoshimura Aya、Shirahata Takashi、Hayashi Minoru、Misaki Yohji、Sakamaki Daisuke、Fujiwara Hideki
    • Journal Title

      European Journal of Organic Chemistry

      Volume: 27 Issue: 13

    • DOI

      10.1002/ejoc.202400088

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Dicyanomethyl Radical Conjugated with a Pyridylamino Group: Combining Radical-based Dynamic Covalent Chemistry and Coordination Chemistry2023

    • Author(s)
      H. Hasegawa, D. Sakamaki, H. Fujiwara
    • Journal Title

      Angew. Chem. Int. Ed.

      Volume: 62 Issue: 26

    • DOI

      10.1002/anie.202302498

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Intramolecular Electron Transfer in Multi-Redox Systems Based on Cyclic [3]Spirobifluorenylene Compound2023

    • Author(s)
      T. Imai, D. Sakamaki, S. Aoyagi, T. Amaya
    • Journal Title

      Chem. Eur. J.

      Volume: 29 Issue: 70

    • DOI

      10.1002/chem.202302670

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis, structure, and electronic properties of a double hetero[4]helicene composed of two phenoselenazines2023

    • Author(s)
      Sakamaki Daisuke、Inoue Yuki、Shimomura Kouhei、Taura Daisuke、Yashima Eiji、Seki Shu
    • Journal Title

      Tetrahedron Letters

      Volume: 114 Pages: 154294-154294

    • DOI

      10.1016/j.tetlet.2022.154294

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unveiling a new aspect of oxocarbons: open-shell character of 4- and 5-membered oxocarbon derivatives showing near-infrared absorption2023

    • Author(s)
      Takeshi Maeda, Taishi Oka, Daisuke Sakamaki, Hideki, Fujiwara, Naoya Suzuki, Shigeyuki Yagi, Tatsuki Konishi, Kenji Kamada
    • Journal Title

      Chemical Science

      Volume: 14 Issue: 8 Pages: 1978-1985

    • DOI

      10.1039/d2sc06612b

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A double heterohelicene composed of two benzo[<i>b</i>]phenothiazine exhibiting intense room-temperature circularly polarized phosphorescence2023

    • Author(s)
      Tanaka Shunya、Sakamaki Daisuke、Haruta Naoki、Sato Tohru、Gon Masayuki、Tanaka Kazuo、Fujiwara Hideki
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 11 Issue: 14 Pages: 4846-4854

    • DOI

      10.1039/d3tc00871a

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A dicyanomethyl radical stabilized by ferrocene: a new building block for radical-based dynamic covalent chemistry with redox activity2022

    • Author(s)
      Ishimoto Misato、Sakamaki Daisuke、Fujiwara Hideki
    • Journal Title

      Chemical Communications

      Volume: 58 Issue: 21 Pages: 3553-3556

    • DOI

      10.1039/d1cc07253f

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Double Heterohelicenes Composed of Benzo[b]- and Dibenzo[b,i]phenoxazine: A Comprehensive Comparison of Their Electronic and Chiroptical Properties2021

    • Author(s)
      Sakamaki Daisuke、Tanaka Shunya、Tanaka Katsuki、Takino Mayu、Gon Masayuki、Tanaka Kazuo、Hirose Takashi、Hirobe Daichi、Yamamoto Hiroshi M.、Fujiwara Hideki
    • Journal Title

      The Journal of Physical Chemistry Letters

      Volume: 12 Issue: 38 Pages: 9283-9292

    • DOI

      10.1021/acs.jpclett.1c02896

    • NAID

      120007185774

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis and Electronic Properties of Directly Linked Dihydrodiazatetracene Dimers2021

    • Author(s)
      Tanaka Katsuki、Sakamaki Daisuke、Fujiwara Hideki
    • Journal Title

      Chemistry - A European Journal

      Volume: 27 Issue: 13 Pages: 4430-4438

    • DOI

      10.1002/chem.202005005

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tetrathiafulvalene‐Inserted Diphenoquinone: Synthesis, Structure, and Dynamic Redox Property2020

    • Author(s)
      Mitsuoka Misaki、Sakamaki Daisuke、Fujiwara Hideki
    • Journal Title

      Chemistry - A European Journal

      Volume: 26 Issue: 62 Pages: 14144-14151

    • DOI

      10.1002/chem.202002291

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] メカノケミカル反応によるヘテロヘリセン及びヘテロナノグラフェンの合成法の開発2022

    • Author(s)
      佐田帆香, *酒巻大輔, *藤原秀紀
    • Organizer
      第32回基礎有機化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 2.非対称ヘテロアセンを用いた軸性キラルD-A型分子の合成と電子的性質2022

    • Author(s)
      石川周平, *酒巻大輔, *藤原秀紀
    • Organizer
      第32回基礎有機化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ピリジル基を有するジシアノメチルラジカルの動的共有結合性および錯形成挙動2022

    • Author(s)
      長谷川大輝,*酒巻大輔,*藤原秀紀
    • Organizer
      第32回基礎有機化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 含窒素ダブルヘテロヘリセンラジカルカチオン塩の結晶構造と物性2022

    • Author(s)
      関口日和,*酒巻大輔,鈴木修一,*藤原秀紀
    • Organizer
      第32回基礎有機化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ピラー状π置換基を有するフタロシアニンの会合挙動の検討2022

    • Author(s)
      坪野洸輝,*酒巻大輔,*藤原秀紀
    • Organizer
      第32回基礎有機化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ジアザテトラセンが縮合した新規π拡張型TTFドナーの開発2022

    • Author(s)
      中井美裕,西村友樹,加藤華,北所幸奈,*酒巻大輔,*藤原秀紀
    • Organizer
      第32回基礎有機化学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 1つまたは2つのジシアノメチルラジカルを導入したフェロセン誘導体の合成と動的共有結合特性2021

    • Author(s)
      石本 実里・酒巻 大輔・藤原 秀紀
    • Organizer
      第31回基礎有機化学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 配位結合部位としてのピリジル基を有する動的共有結合性ラジカルの開発2021

    • Author(s)
      長谷川大輝・酒巻大輔・藤原秀紀
    • Organizer
      第31回基礎有機化学討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] フェノキシラジカルを導入した拡張TTF誘導体の開発2021

    • Author(s)
      服部 美鈴、酒巻 大輔、藤原 秀紀
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ジシアノメチルラジカルを導入したフェロセン誘導体の合成と動的共有結合特性2021

    • Author(s)
      石本 実里、酒巻 大輔、藤原 秀紀
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ジアザキノイド骨格を有する拡張型TTF分子の開発2021

    • Author(s)
      溝川 舜介、松田 瞳、酒巻 大輔、藤原 秀紀
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 1,3-ジチオール環を置換した新規スクアライン色素の合成と物性2021

    • Author(s)
      村田 司、酒巻 大輔、岡 大志、前田 壮志、八木 繁幸、藤原 秀紀
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] フラビリウム骨格とオキソカーボン酸残基からなる近赤外吸収色素の合成と物性2021

    • Author(s)
      大野 友彰、前田 壮志、酒巻 大輔、岡 大志、八木 繁幸、藤原 秀紀
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 含窒素ヘテロテトラセンの酸化的二量化によるダブルヘテロヘリセンの合成・構造・原始的性質2021

    • Author(s)
      田中 駿也、田中 克輝、瀧野 真由、酒巻 大輔、藤原 秀紀
    • Organizer
      日本化学会第101春季年会
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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