Interaction between oxygen and aromatic molecules
- 1 January 1974
- 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. 70, 1143-1152
- https://doi.org/10.1039/f29747001143
Abstract
The quenching of electronically excited aromatic molecules is discussed, employing a “golden rule” formalism for the quenching. Attention is focussed on the electronic matrix elements for the charge-transfer and electron exchange mechanisms. Singlet quenching is shown to be diffusion controlled in solution and to yield preferentially higher excited triplet states. Relaxation to a charge-transfer state is shown to be unimportant. Triplet quenching is shown to yield almost exclusively 1Δg excited oxygen. Induced absorption is considered and a comparison with experimental data is made. A short discussion of the effect of NO as a perturbing molecule is presented.Keywords
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