Vibronic coupling and intramolecular dynamics of pyrene as revealed by the S0→S2 excitation spectrum in a supersonic jet

Nobuhiro Ohta*, Hiroaki Baba, Giancarlo Marconi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

The fluorescence excitation spectrum of pyrene obtained in a supersonic jet for the S0→S2 transition shows a complicated structure due to the interaction of discrete levels of S2 with the quasi-continuous levels belonging to S1. The intensity distribution pattern in this region has been evaluated from quantum-mechanically calculated quantities, such as the vibronic coupling integrals, and Franck-Condon factors deduced from independent experiments. The dynamics in pyrene following excitation into S2 are discussed.

Original languageEnglish
Pages (from-to)222-229
Number of pages8
JournalChemical Physics Letters
Volume133
Issue number3
DOIs
StatePublished - 16 Jan 1987

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