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  Multi-faceted spectroscopic mapping of ultrafast nonadiabatic dynamics near conical intersections: A computational study

Sun, K., Xie, W., Chen, L., Domcke, W., & Gelin, M. F. (2020). Multi-faceted spectroscopic mapping of ultrafast nonadiabatic dynamics near conical intersections: A computational study. The Journal of Chemical Physics, 153(17):. doi:10.1063/5.0024148.

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アイテムのパーマリンク: https://hdl.handle.net/21.11116/0000-0007-F5E5-2 版のパーマリンク: https://hdl.handle.net/21.11116/0000-0009-CE7C-5
資料種別: 学術論文

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 作成者:
Sun, Kewei1, 著者
Xie, Weiwei1, 著者
Chen, Lipeng2, 著者           
Domcke, Wolfgang1, 著者
Gelin, Maxim F.1, 著者
所属:
1external, ou_persistent22              
2Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              

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 MPIPKS: Light-matter interaction
 要旨: We studied spectroscopic signatures of the nonadiabatic dynamics at conical intersections formed by the lowest excited singlet states in pyrazine. We considered two ab initio models of conical intersections in the excited states of pyrazine developed by Sala et al. [Phys. Chem. Chem. Phys. 16, 15957 (2014)]: a two-state (B-2u and B-3u), five-mode model and a three-state (B-2u, B-3u, and A(u)), nine-mode model. We simulated the signals of three widely used techniques: time- and frequency-resolved fluorescence spectroscopy, transient absorption pump-probe spectroscopy, and electronic two-dimensional spectroscopy. The signals were calculated through third-order response functions, which, in turn, were evaluated with the numerically accurate multiple Davydov ansatz. We establish spectroscopic signatures of the optically dark A(u) state and demonstrate that the key features of the photoinduced dynamics, such as electronic/nuclear populations, electronic/nuclear coherences, and electronic/nuclear energy transfer processes, are imprinted in the spectroscopic signals. We show that a fairly complete picture of the nonadiabatic dynamics at conical intersections can be obtained when several spectroscopic techniques are combined. Provided that the time resolution is sufficient, time- and frequency-resolved fluorescence may provide the best visualization of the nonadiabatic dynamics near conical intersections.

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 日付: 2020-11-052020-11-07
 出版の状態: 出版
 ページ: -
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 目次: -
 査読: -
 識別子(DOI, ISBNなど): ISI: 000591701900002
DOI: 10.1063/5.0024148
 学位: -

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出版物 1

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出版物名: The Journal of Chemical Physics
  省略形 : J. Chem. Phys.
種別: 学術雑誌
 著者・編者:
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出版社, 出版地: Woodbury, N.Y. : American Institute of Physics
ページ: - 巻号: 153 (17) 通巻号: 174111 開始・終了ページ: - 識別子(ISBN, ISSN, DOIなど): ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226