Table of Contents
Laser Chemistry
Volume 14, Issue 1-3, Pages 143-154

Singlet And Triplet n,π Transitions of Jet-Cooled p-Benzoquinone

1Department of Industrial Chemistry, College of Engineering, Nihon University, Koriyama 963, Japan
2Institute for Molecular Science, Myodaiji, Okazaki 444, Japan
3Department of Chemical Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060, Japan

Received 14 May 1993

Copyright © 1994 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The fluorescence/phosphorescence excitation spectra, the dispersed fluorescence/phosphorescence spectra and the sensitized phosphorescence excitation spectrum have been measured for jet-cooled p-benzoquinone. The assignments of vibronic bands in the 1B1g(n-,π) ← 1Ag and 1Au(n+,π) ← 1Ag transitions have been definitely established. The phosphorescence spectra from vibronic levels of 3Au exhibit a feature of single vibronic level emission. The 3Au1Ag transition was also vibrationally analyzed.