Comportement photochimique de cétones α,β-insaturées sous excitation directe
- 1 July 1976
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 54 (13) , 2127-2134
- https://doi.org/10.1139/v76-305
Abstract
The initial quantum yields of the primary photochemical processes which occur with five α,β-unsaturated ketones were measured under conditions of monochromatic excitation. The quantum yields of EZ isomerization and possibly of transposition (deconjugation) lead to a quantitative interpretation of the nonradiative deactivation of the S1 (nπ) and S2(ππ) excited states of these ketones. These substances show a remarkable photostability even in the presence of dissolved oxygen. [Journal translation]Keywords
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