Probing ultrafast internal conversion through conical intersection via time-energy map of photoelectron angular anisotropy

Takuya Horio; Takao Fuji; Yoshi Ichi Suzuki; Toshinori Suzuki

doi:10.1021/ja904780b

Probing ultrafast internal conversion through conical intersection via time-energy map of photoelectron angular anisotropy

Takuya Horio, Takao Fuji, Yoshi Ichi Suzuki, Toshinori Suzuki

Research output: Contribution to journal › Article › peer-review

88 Citations (Scopus)

Abstract

(Figure Presented) The ultrafast S₂ → S₁ internal conversion of pyrazine through a conical intersection of the potential energy surfaces was clearly observed by ultrafast photoelectron imaging. The 2D time-energy map of the photoelectron angular anisotropy revealed a clear signature of the internal conversion (the color change of green-orange-green in the horizontal direction) at ∼0.9 eV. The orange color at ∼20 fs and 0.9 eV was found to correspond to the non-Koopmans ionization process from S ₂(π,π*) to D₀(n^-1).

Original language	English
Pages (from-to)	10392-10393
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	131
Issue number	30
DOIs	https://doi.org/10.1021/ja904780b
Publication status	Published - Aug 5 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)
Catalysis
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja904780b

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@article{276ad86bb4c14b6594736046044a31d4,

title = "Probing ultrafast internal conversion through conical intersection via time-energy map of photoelectron angular anisotropy",

abstract = "(Figure Presented) The ultrafast S2 → S1 internal conversion of pyrazine through a conical intersection of the potential energy surfaces was clearly observed by ultrafast photoelectron imaging. The 2D time-energy map of the photoelectron angular anisotropy revealed a clear signature of the internal conversion (the color change of green-orange-green in the horizontal direction) at ∼0.9 eV. The orange color at ∼20 fs and 0.9 eV was found to correspond to the non-Koopmans ionization process from S 2(π,π*) to D0(n-1).",

author = "Takuya Horio and Takao Fuji and Suzuki, {Yoshi Ichi} and Toshinori Suzuki",

year = "2009",

month = aug,

day = "5",

doi = "10.1021/ja904780b",

language = "English",

volume = "131",

pages = "10392--10393",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "30",

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TY - JOUR

T1 - Probing ultrafast internal conversion through conical intersection via time-energy map of photoelectron angular anisotropy

AU - Horio, Takuya

AU - Fuji, Takao

AU - Suzuki, Yoshi Ichi

AU - Suzuki, Toshinori

PY - 2009/8/5

Y1 - 2009/8/5

N2 - (Figure Presented) The ultrafast S2 → S1 internal conversion of pyrazine through a conical intersection of the potential energy surfaces was clearly observed by ultrafast photoelectron imaging. The 2D time-energy map of the photoelectron angular anisotropy revealed a clear signature of the internal conversion (the color change of green-orange-green in the horizontal direction) at ∼0.9 eV. The orange color at ∼20 fs and 0.9 eV was found to correspond to the non-Koopmans ionization process from S 2(π,π*) to D0(n-1).

AB - (Figure Presented) The ultrafast S2 → S1 internal conversion of pyrazine through a conical intersection of the potential energy surfaces was clearly observed by ultrafast photoelectron imaging. The 2D time-energy map of the photoelectron angular anisotropy revealed a clear signature of the internal conversion (the color change of green-orange-green in the horizontal direction) at ∼0.9 eV. The orange color at ∼20 fs and 0.9 eV was found to correspond to the non-Koopmans ionization process from S 2(π,π*) to D0(n-1).

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