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Mechanical characterization of metal complexes showing mechanochromic luminescence using laser-induced shock waves

Research Project

Project/Area Number 19K15577
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Fujii Sho  北海道大学, 理学研究院, 助教 (90725425)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsメカノクロミック発光 / レーザー誘起衝撃波 / 自己修復 / メカノクロミック発光現象 / パルスレーザー衝撃波 / パルスレーザー / 衝撃波 / 金属錯体 / メカノクロミズム
Outline of Research at the Start

力学的な外部刺激による発光変化(メカノクロミック発光)を示す金属錯体が多く報告されているが,作用させる力の定量は困難である.すなわち,『どの程度の力を,どの程度の時間作用させると現象が起こるか?』が不明である.
本研究では,パルスレーザー光を固体基板表面へ照射した時に発生する衝撃波を力学的刺激として用いる.この衝撃波は熱の影響を最小限に留め,パルスレーザー光強度で力の強度を制御でき,力の作用時間は基板の種類に依存する.衝撃波と顕微分光法を駆使して金属錯体におけるメカノクロミック現象の時間分解計測・定量化を行い,力学的刺激と分子間相互作用や分子内結合変化に関わる現象の学理を明らかにする.

Outline of Final Research Achievements

Laser-induced shock waves as a mechanical stimulus were applied to metal complexes showing mechanochromic luminescence caused by mechanical grinding. The shock waves provided two types of mechanisms for the mechanochromic phenomenon reported by the grinding: frictional force and heat. Dependence of the laser fluence relating to strength of the shock waves leads to quantitative evaluation of the stimulus force. Furthermore, we found an intermediate state showing self-healing for previously reported Au(I) complex. Thus, by using the laser-induced shock waves, we have obtained new findings on the phenomenon of mechanochromic luminescence.

Academic Significance and Societal Importance of the Research Achievements

近年,弱い機械刺激に応答して構造変化や相転移を起こす物質群の研究が展開されており,力学的刺激による発光変化(メカノクロミック発光)を示す金属錯体が多く報告されている.しかしながら,従来のすりつぶしによる機械刺激においては局所的な熱や力が発生するため,現象を支配する要因の決定は難しく,メカノクロミック現象の力学的理解は限られていた.本研究においてレーザー誘起衝撃波を力学的刺激として用いた結果,既報の物質群において摩擦熱に起因する群と摩擦力に起因する群があることを明らかにした.また,作用する力学的刺激を定量評価する実験系を提案できたことから,メカノクロミック現象の理解と発展に貢献しうる成果である.

Report

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

    (14 results)

All 2021 2020 2019

All Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 2 results,  Invited: 3 results)

  • [Journal Article] Construction of ultra-thin layer-by-layer films of oligothiophene derivatives on an electrode2021

    • Author(s)
      H. Urino, A. Kodaira, H. Takahashi, C. Pac, S. Fujii, K. Kanaizuka, H. Moriyama
    • Journal Title

      Langmuir

      Volume: 37 Issue: 2 Pages: 978-982

    • DOI

      10.1021/acs.langmuir.0c03549

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A 195Pt NMR study on zero-magnetic-field splitting and the phosphorescence properties in the excited triplet states of cyclometalated platinum(ii) complexes2020

    • Author(s)
      Akagi Soichiro、Fujii Sho、Kitamura Noboru
    • Journal Title

      Dalton Transactions

      Volume: 49 Issue: 19 Pages: 6363-6367

    • DOI

      10.1039/d0dt00532k

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synthesis, Structures, and Photoluminescent Properties of Tricyanidonitridorhenium(V) Complexes with Bipyridine-Type Ligands2020

    • Author(s)
      Nagata Kojiro、Otsuji Naoko、Akagi Soichiro、Fujii Sho、Kitamura Noboru、Yoshimura Takashi
    • Journal Title

      Inorganic Chemistry

      Volume: 59 Issue: 8 Pages: 5497-5508

    • DOI

      10.1021/acs.inorgchem.0c00125

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Proton-Switched Emission Behavior of Hexanuclear Molyb-denum(II) Clusters Bearing Terminal Pyridine Carboxylate Ligands2020

    • Author(s)
      Fujii Sho、Tanioka Erina、Sasaki Kohei、Horiguchi Taishiro、Akagi Soichiro、Kitamura Noboru
    • Journal Title

      European Journal of Inorganic Chemistry

      Volume: 2020 Issue: 31 Pages: 2983-2989

    • DOI

      10.1002/ejic.202000440

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Liquid-liquid interface-promoted formation of a porous molecular crystal based on a luminescent platinum(ii) complex2020

    • Author(s)
      Kimura Mari、Yoshida Masaki、Fujii Sho、Miura Atsushi、Ueno Kosei、Shigeta Yasuhiro、Kobayashi Atsushi、Kato Masako
    • Journal Title

      Chemical Communications

      Volume: 56 Issue: 85 Pages: 12989-12992

    • DOI

      10.1039/d0cc04164e

    • NAID

      120007168164

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermo-Plasmonic Trapping of Living Cyanobacteria on a Gold Nanopyramidal Dimer Array: Implications for Plasmonic Biochips2020

    • Author(s)
      Naka Shota、Shoji Tatsuya、Fujii Sho、Ueno Kosei、Wakisaka Yumi、Murakoshi Kei、Mizoguchi Tadashi、Tamiaki Hitoshi、Tsuboi Yasuyuki
    • Journal Title

      ACS Applied Nano Materials

      Volume: 3 Issue: 10 Pages: 10067-10072

    • DOI

      10.1021/acsanm.0c02071

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dumbbell‐Shaped 2,2’‐Bipyridines: Controlled Metal Monochelation and Application to Ni‐Catalyzed Cross‐Couplings2020

    • Author(s)
      Kim Yongjoon、Iwai Tomohiro、Fujii Sho、Ueno Kosei、Sawamura Masaya
    • Journal Title

      Chemistry ? A European Journal

      Volume: 27 Issue: 7 Pages: 2289-2293

    • DOI

      10.1002/chem.202004053

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Further enhancement of the near-field on Au nanogap dimers using quasi-dark plasmon modes2020

    • Author(s)
      Shibata Kizuku、Fujii Sho、Sun Quan、Miura Atsushi、Ueno Kosei
    • Journal Title

      The Journal of Chemical Physics

      Volume: 152 Issue: 10 Pages: 104706-104706

    • DOI

      10.1063/1.5142569

    • NAID

      120006994859

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Syntheses and characterization of ruthenium complexes bearing 2-(2-Pyridyl)-1H-imidazole[4,5-b]pyridine ligand2020

    • Author(s)
      S. Fujii, E. Tanioka, A. Miura, K. Ueno
    • Organizer
      日本化学会第100春季年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Laser-induced microbubbles applied to chemical reactions2020

    • Author(s)
      S. Fujii
    • Organizer
      6th International Mini-symposium on Surface Forces
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular assembly on surface by photothermally-generated interface: towards sustainable manufacturing2020

    • Author(s)
      S. Fujii
    • Organizer
      International Symposium on Materials Chemistry for Sustainable Energy in Chuo University
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] レーザー誘起衝撃波を用いたメカノクロミック発光現象の解析2019

    • Author(s)
      北村侑子, 藤井翔, 三浦篤志, 上野貢生, 喜多村曻
    • Organizer
      2019年光化学討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] プロトン共役多電子還元反応を示す新規ルテニウム錯体の合成と反応解析2019

    • Author(s)
      谷岡恵利奈, 藤井翔, 三浦篤志, 上野貢生
    • Organizer
      CSJ化学フェスタ
    • Related Report
      2019 Research-status Report
  • [Presentation] レーザー誘起マイクロバブルにおける界面化学の探究2019

    • Author(s)
      藤井翔
    • Organizer
      第37回九州分析化学若手の会 夏季セミナー
    • Related Report
      2019 Research-status Report
    • Invited

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Published: 2019-04-18   Modified: 2022-01-27  

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