Quenching by Oxygen of the Lowest Singlet and Triplet States of Pyrene and the Efficiency of the Formation of Singlet Oxygen in Liquid Solution under High Pressure

Quenching by oxygen of the lowest singlet (S1) and triplet (T1) states of pyrene at pressures up to 400 MPa in liquid solution was investigated. The rate constant of the S1 state, k q S, decreased significantly with increasing pressure, while that of the T1 state, k q T, was nearly independent of pr...

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Published in:The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2002-04, Vol.106 (15), p.3982-3990
Main Authors: Okamoto, Masami, Tanaka, Fujio
Format: Article
Language:English
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Summary:Quenching by oxygen of the lowest singlet (S1) and triplet (T1) states of pyrene at pressures up to 400 MPa in liquid solution was investigated. The rate constant of the S1 state, k q S, decreased significantly with increasing pressure, while that of the T1 state, k q T, was nearly independent of pressure at the lower pressure region (
ISSN:1089-5639
1520-5215
DOI:10.1021/jp013675c