Time-resolved photoelectron imaging of S2 → S1 internal conversion in benzene and toluene

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

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Ultrafast internal conversion of benzene and toluene from the S2 states was studied by time-resolved photoelectron imaging with a time resolution of 22 fs. Time-energy maps of the photoelectron intensity and the angular anisotropy were generated from a series of photoelectron images. The photoelectron kinetic energy distribution exhibits a rapid energy shift and intensity revival, which indicates nuclear motion on the S2 adiabatic surface, while the ultrafast evolution of the angular anisotropy revealed a change in the electronic character of the S2 adiabatic surface. From their decay profiles of the total photoelectron intensity, the time constants of 48 ± 4 and 62 ± 4 fs were determined for the population decay from the S2 states in benzene and toluene, respectively.

Original languageEnglish
Article number184313
JournalJournal of Chemical Physics
Volume134
Issue number18
DOIs
Publication statusPublished - May 14 2011
Externally publishedYes

Fingerprint

internal conversion
Toluene
Photoelectrons
Benzene
toluene
photoelectrons
benzene
Imaging techniques
Anisotropy
anisotropy
decay
Kinetic energy
time constant
energy distribution
kinetic energy
energy
shift
profiles
electronics

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Time-resolved photoelectron imaging of S2 → S1 internal conversion in benzene and toluene. / Suzuki, Yoshi Ichi; Horio, Takuya; Fuji, Takao; Suzuki, Toshinori.

In: Journal of Chemical Physics, Vol. 134, No. 18, 184313, 14.05.2011.

Research output: Contribution to journalArticle

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