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Creation of Novel Functional Systems based on Open-shell Porphyrinoids

Research Project

Project/Area Number 16J05512
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Functional solid state chemistry
Research InstitutionKyoto University

Principal Investigator

清水 大貴  京都大学, 理学研究科, 特別研究員(DC1)

Project Period (FY) 2016-04-22 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2018: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2017: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2016: ¥900,000 (Direct Cost: ¥900,000)
Keywordsポルフィリン / 安定ラジカル / 電子スピン共鳴 / 超伝導量子干渉計 / ナイトレニウムイオン / ESR / SQUID / 高スピン / スピンフラストレーション / 磁性 / 有機ラジカル / ポルフィリノイド / サブポルフィリン / 錯体
Outline of Annual Research Achievements

有機ラジカルは、それが持つ不対電子に由来した磁性や酸化還元特性、光化学特性など特異な物性を有することから機能性材料としての応用が期待される分子群である。しかしながら、一般的に不安定な有機ラジカルを安定化できる骨格は限られており、さらなる発展が求められている。申請者らは前年度に引き続き、ポルフィリノイドの高いラジカル安定化能力に注目して、様々な機能性分子の構築に取り組んでいる。
本年度は前年度に見出した基底高スピンかつ安定なポルフィリン縮環ベンゼン1,3,5-トリアミニルラジカルの研究をまとめ、論文および学会にて発表した。その後、ポルフィリンのラジカル安定化能力
を他の不安定化学種の安定化に応用できないかと着想し、ナイトレニウムイオンの安定化を目指した研究を行った。
ナイトレニウムイオンはカルベンの窒素等電子体であり、生化学や合成化学の重要な反応中間体である。形式的に窒素原子がオクテット則を満たさない電子不足化学種であり反応性が高いことから、その安定化には窒素中心に直接電子供与性のアミノ基を結合させる方法のみが知られていた。本研究では安定なジポルフィリニルアミニルラジカルを一電子酸化したところ、対応するナイトレニウムイオン種が良好な収率で得られた。このナイトレニウムイオンはシリカゲルでの精製が可能であるほか、高温条件やメタノール中でも安定であることを明らかにした。これらは窒素中心に直接アミノ基が結合していないナイトレニウムイオンを初めて単離・構造決定した例である。また、アミニルラジカルのプロトン化によりナイトレニウムイオンが生じるなど興味深い現象も明らかになった。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (34 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (5 results) Journal Article (17 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 17 results,  Open Access: 10 results,  Acknowledgement Compliant: 3 results) Presentation (11 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] 延世大学校(韓国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 湖南師範大学(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Yonsei University(韓国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Christian-Albrechts-Universitaet zu Kiel(ドイツ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Yonsei University(韓国)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Stable (BIII-Subporphyrin-5-yl)dicyanomethyl Radicals2019

    • Author(s)
      Adinarayana Bellamkonda、Shimizu Daiki、Osuka Atsuhiro
    • Journal Title

      Chemistry - A European Journal

      Volume: 25 Issue: 7 Pages: 1706-1710

    • DOI

      10.1002/chem.201805601

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Selective Formation of Helical Tetrapyrrin‐fused Porphyrins by Oxidation of beta‐to‐beta Linked meso‐Aminoporphyrin Dimers2019

    • Author(s)
      Osuka Atsuhiro、Fujimoto Keisuke、Shimizu Daiki、Mori Tadashi、Li Yuanyuan、Zhou Mingbo、Song Jianxin
    • Journal Title

      Chemistry - A European Journal

      Volume: 25 Issue: 7 Pages: 1711-1715

    • DOI

      10.1002/chem.201805659

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Coordination-Induced Spin-State Switching of an Aminyl-Radical-Bridged Nickel(II) Porphyrin Dimer between Doublet and Sextet States2019

    • Author(s)
      Shimizu Daiki、Ide Yuki、Ikeue Takahisa、Osuka Atsuhiro
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 58 Issue: 15 Pages: 5023-5027

    • DOI

      10.1002/anie.201900792

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Octaphyrin bis-Silicon Complexes with 38π-, 37π-, and 36π Conjugated Systems: Aromaticity Switch and Stable Radical Cation2018

    • Author(s)
      Shin-ichiro Ishida, Jinseok Kim, Daiki Shimizu, Dongho Kim, Atsuhiro Osuka
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 印刷中 Issue: 20 Pages: 5876-5880

    • DOI

      10.1002/anie.201801986

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] “B(III)-5-Arylsubporphyrins and B(III)-subporphine”2018

    • Author(s)
      K. Kise, K. Yoshida, R. Kotani, D. Shimizu, and A. Osuka
    • Journal Title

      Chem. Eur. J.,

      Volume: 91 Issue: 72 Pages: 19136-19140

    • DOI

      10.1002/chem.201801491

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] “Diarylamine-fused Subporphyrins: Proof of Twisted Intramolecu-lar Charge Transfer (TICT) Mechanism”2018

    • Author(s)
      K. Kise, Y. Hong, N. Fukui, D. Shimizu, D. Kim, and A. Osuka
    • Journal Title

      Chem. Eur. J.

      Volume: 24 Issue: 33 Pages: 8306-8310

    • DOI

      10.1002/chem.201801576

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Stable Diporphyrinylaminyl Radical and Nitrenium Ion2018

    • Author(s)
      Shimizu Daiki、Fujimoto Keisuke、Osuka Atsuhiro
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 57 Issue: 30 Pages: 9434-9438

    • DOI

      10.1002/anie.201805385

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] “meso-Functionalizations of B(III) Subporphyrin with B(III) meso-Lithiosubporphyrin”2018

    • Author(s)
      Y. Bekki, D. Shimizu, K. Fujimoto, and A. Osuka
    • Journal Title

      Chem. Eur. J.

      Volume: 24 Issue: 48 Pages: 1-9

    • DOI

      10.1002/chem.201802339

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] “Stable Face-to-Face Singlet Diradicaloids: Doubly u-Hydroxo-Bridged Triply-Linked Corrole Dimer Ga(III) Complexes”2018

    • Author(s)
      S. Ooi, D. Shimizu, K. Furukawa, T. Tanaka, and A. Osuka
    • Journal Title

      Angew. Chem. Int. Ed

      Volume: 57 Issue: 45 Pages: 14916-14920

    • DOI

      10.1002/anie.201810200

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Porphyrin‐Stabilized Nitrenium Dication2018

    • Author(s)
      Fujimoto Keisuke、Shimizu Daiki、Osuka Atsuhiro
    • Journal Title

      Chemistry - A European Journal

      Volume: 25 Issue: 2 Pages: 521-525

    • DOI

      10.1002/chem.201805491

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Benzene-1,3,5-Triaminyl Radical Fused with ZnII-Porphyrins: Remarkable Stability and a High-Spin Quartet Ground State2018

    • Author(s)
      Shimizu Daiki、Osuka Atsuhiro
    • Journal Title

      Angew. Chem. Int. Ed.

      Volume: ー Issue: 14 Pages: 3733-3736

    • DOI

      10.1002/anie.201801080

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Porphyrinoids as a platform of stable radicals2018

    • Author(s)
      Daiki Shimizu and Atsuhiro Osuka
    • Journal Title

      Chemical Science

      Volume: 0 Issue: 6 Pages: 1408-1423

    • DOI

      10.1039/c7sc05210c

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Highly planar diarylamine-fused porphyrins and their remarkably stable radical cations2017

    • Author(s)
      Norihito Fukui, Wonhee Cha, Daiki Shimizu, Juwon Oh, Ko Furukawa, Hideki Yorimitsu, Dongho Kim, Atsuhiro Osuka
    • Journal Title

      Chem. Sci.

      Volume: 8 Issue: 1 Pages: 189-199

    • DOI

      10.1039/c6sc02721k

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Thienylquinonoidal Porphyrins and Hexaphyrins with Singlet Diradical Ground States2017

    • Author(s)
      Koji Naoda, Daiki Shimizu, Jun Oh Kim, Ko Furukawa, Dongho Kim, and Atsuhiro Osuka
    • Journal Title

      Chemistry - A European Journal

      Volume: 23 Issue: 37 Pages: 8969-8979

    • DOI

      10.1002/chem.201701355

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stable Subporphyrin meso-Aminyl Radicals without Resonance Stabilization by a Neighboring Heteroatom2017

    • Author(s)
      Shimizu Daiki、Furukawa Ko、Osuka Atsuhiro
    • Journal Title

      Angew. Chem. Int. Ed

      Volume: 56 Issue: 26 Pages: 7435-7439

    • DOI

      10.1002/anie.201703097

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Stable NiII Porphyrin meso-Oxy Radical with a Quartet Ground State2017

    • Author(s)
      Cosima Staehler, Daiki Shimizu, Kota Yoshida, Ko Furukawa, Rainer Herges, and Atsuhiro Osuka
    • Journal Title

      Chemistry - A European Journal

      Volume: 23 Issue: 30 Pages: 7217-7220

    • DOI

      10.1002/chem.201701354

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] meso-Nitro- and meso-Aminosubporphyrinatoboron(III)s and meso-to-meso Azosubporphyrinatoboron(III)s2016

    • Author(s)
      Daiki Shimizu, Seung-Kyu Lee, Dongho Kim, and Atsuhiro Osuka
    • Journal Title

      Chemistry - An Asian Journal

      Volume: 11 Issue: 20 Pages: 2946-2952

    • DOI

      10.1002/asia.201601019

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] ジポルフィリニルアミニルラジカル-ニッケル二核錯体とその配位誘起スピンクロスオーバー挙動2019

    • Author(s)
      清水大貴・大須賀篤弘
    • Organizer
      日本化学会第99春季年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ポルフィリンによって安定化されたアミニルラジカルの合成と物性2018

    • Author(s)
      清水大貴・大須賀篤弘
    • Organizer
      第29回基礎有機化学討論会
    • Related Report
      2018 Annual Research Report
  • [Presentation] A Benzene-1,3,5-Triaminyl Radical Fused with Zn(II)-Porphyrins: Remarkable Stability and High Spin Quartet Ground State2018

    • Author(s)
      Daiki Shimizu, Atsuhiro Osuka
    • Organizer
      ICPP10
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Benzene-1,3,5-Triaminyl Radical Fused with Zn(II)-Porphyrins: Remarkable Stability and High Spin Quartet Ground State2018

    • Author(s)
      Daiki Shimizu, Atsuhiro Osuka
    • Organizer
      SICC10
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 安定ラジカルの基盤としてのポルフィリン類縁体2018

    • Author(s)
      清水大貴
    • Organizer
      2018 年度 高分子・ハイブリッド材料研究センター(PHyM)若手フォーラム
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] ポルフィリンによって安定化されたアミニルラジカル及びナイトレニウムイオンの合成と物性2018

    • Author(s)
      清水大貴、大須賀篤弘
    • Organizer
      日本化学会第98春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Stable Aminyl Radicals of a Triaminobenzene-fused Porphyrin Trimer2017

    • Author(s)
      Daiki Shimizu, Atsuhiro Osuka
    • Organizer
      日本化学会第97春季年会
    • Place of Presentation
      慶應義塾大学
    • Year and Date
      2017-03-16
    • Related Report
      2016 Annual Research Report
  • [Presentation] Stable meso-Aminyl Radicals stabilized by Porphyrinoids2017

    • Author(s)
      Daiki Shimizu and Atsuhiro Osuka
    • Organizer
      International Symposium on Macrocyclic and Supramolecular Chemistry (ISMSC) in conjunction with ISACS: Challenges in Organic Materials & Supramolecular Chemistry
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ポルフィリノイドによって安定化されたアミニルラジカルの合成と物性2016

    • Author(s)
      清水大貴・古川貢・大須賀篤弘
    • Organizer
      第27回基礎有機化学討論会
    • Place of Presentation
      広島国際会議場
    • Year and Date
      2016-09-01
    • Related Report
      2016 Annual Research Report
  • [Presentation] Triarylporphyrin meso-Oxy Radical: Remarkable Stabilities, Properties, and Oxidation to Oxophlorin π-Cations2016

    • Author(s)
      Daiki Shimizu, Atsuhiro Osuka
    • Organizer
      International Conference on Porphyrins and Phthalocyanines (ICPP-9)
    • Place of Presentation
      Nanjing, China
    • Year and Date
      2016-07-03
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 化学的に安定なポルフィリンメゾオキシラジカルの合成と物性2016

    • Author(s)
      清水大貴・大須賀篤弘
    • Organizer
      第36回有機合成若手セミナー
    • Place of Presentation
      京都薬科大学
    • Related Report
      2016 Annual Research Report
  • [Remarks] ORCiD

    • URL

      https://orcid.org/0000-0002-2053-3483

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2016-05-17   Modified: 2024-03-26  

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