Oxygen quenching of aromatic triplet states in solution. Part 2
- 1 January 1973
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 69, 721-726
- https://doi.org/10.1039/f29736900721
Abstract
Recent measurements of the quenching of aromatic triplet states by oxygen are discussed. The dependence of the quenching rate constant on triplet energy is analysed in terms of a nonradiative transition within the collision complex between a ground state oxygen and a triplet state aromatic molecule. The Franck-Condon factor and electronic matrix element for this transition are considered. It is shown that the data are consistent with symmetry restrictions in the formation of 1∑+ g oxygen. Quantum yields of 1∑+ g formation are calculated from the observed quenching rate constants and compared with experiment.Keywords
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