Issue 10, 1996

Photoinduced electron transfer between triethylamine and aromatic carbonyl compounds: the role of the nature of the lowest triplet state

Abstract

The rate constants of quenching of the triplet state T1 of four aromatic ketones by triethylamine in acetonitrile show no correlation with the Gibbs energy of the reaction, but depend on the nature of T1, i.e. nπ*, ππ* or charge transfer (CT) type. For example, the ratio of rate constants between two systems of nπ* and CT type, with the same driving force, is over 108. It is concluded that these reactions are kinetically controlled, the decisive factor for the activation energy being the electrostatic charge distribution of the carbonyl group in the triplet state.

Article information

Article type
Paper

J. Chem. Soc., Faraday Trans., 1996,92, 1689-1691

Photoinduced electron transfer between triethylamine and aromatic carbonyl compounds: the role of the nature of the lowest triplet state

P. Aspari, N. Ghoneim, E. Haselbach, M. von Raumer, P. Suppan and E. Vauthey, J. Chem. Soc., Faraday Trans., 1996, 92, 1689 DOI: 10.1039/FT9969201689

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