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Theoretical investigation on ultrafast electronic relaxation dynamics in transition metal complexes

Research Project

Project/Area Number 17K05747
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Physical chemistry
Research InstitutionNagoya University

Principal Investigator

Iuchi Satoru  名古屋大学, 情報学研究科, 助教 (50535060)

Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords遷移金属錯体 / 励起状態ダイナミクス / モデルハミルトニアン / 分子シミュレーション / スピン軌道相互作用 / 項間交差 / 電子緩和
Outline of Final Research Achievements

We have developed a model electronic Hamiltonian to compute excited states of a prototypical tris(bipyridine)iron(II) complex in a computationally cheap fashion for the use in molecular dynamics simulations. Through nonadiabatic molecular dynamics simulations by using the developed model Hamiltonian, we have studied the electronic relaxation dynamics in detail and successfully provided the insight into relaxation pathways after photoexcitation.

Academic Significance and Societal Importance of the Research Achievements

遷移金属錯体の複雑な電子励起状態で起こる緩和ダイナミクスの解明は基礎科学ならびに光科学技術の基礎知見の両面の視点から重要である。緩和ダイナミクスの解明には、複雑な励起状態とそのダイナミクスを扱うための計算方法の発展が必要であり、本研究課題にて基本的な錯体を対象に実行した一連の計算は、その発展の一つに位置づけられる。また、本研究成果に基づき、種々の遷移金属錯体の緩和ダイナミクスを追跡する一つの計算方法に発展できる可能性があると考えている。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2022 2021 2019 2018

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

  • [Journal Article] A model electronic Hamiltonian to describe low-lying d-d and metal-to-ligand charge-transfer excited states of [Fe(bpy)3]2+2021

    • Author(s)
      S. Iuchi and N. Koga
    • Journal Title

      Journal of Computational Chemistry

      Volume: 42 Issue: 3 Pages: 166-179

    • DOI

      10.1002/jcc.26444

    • NAID

      120006959342

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] トリスビピリジン鉄(Ⅱ)錯体の励起状態ダイナミクスに関する分子動力学シミュレーション研究2022

    • Author(s)
      井内 哲、古賀 伸明
    • Organizer
      第16回分子科学討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Non-adiabatic molecular dynamics simulation of excited state dynamics of [Fe(bpy)3]2+ using a model electronic Hamiltonian2022

    • Author(s)
      Satoru Iuchi
    • Organizer
      The 8th Quantum Science Symposium in ICCMSE 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 動力学計算のための鉄(II)錯体の電荷移動励起状態とd-d励起状態を同時計算するモデルハミルトニアン2021

    • Author(s)
      井内 哲,古賀 伸明
    • Organizer
      第23回理論化学討論会
    • Related Report
      2021 Research-status Report
  • [Presentation] Molecular dynamics simulations of ultrafast electronic relaxation dynamics in an iron(II) complex2019

    • Author(s)
      Satoru Iuchi
    • Organizer
      15th International Workshop on Quantum Reactive Scattering
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] トリスビピリジン鉄(II)錯体の電荷移動励起状態とd-d励起状態を記述するモデルハミルトニアンの開発2018

    • Author(s)
      井内 哲,古賀 伸明
    • Organizer
      第12回分子科学討論会
    • Related Report
      2018 Research-status Report
  • [Presentation] Molecular dynamics simulations of light-induced spin crossover in an iron(II) complex: a model electronic Hamiltonian approach2018

    • Author(s)
      Satoru Iuchi
    • Organizer
      4th Computational Chemistry Symposium in ICCMSE2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2017-04-28   Modified: 2024-01-30  

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