Model analysis of branching photoreactions with conformationally flexible intermediate

The principal model of multistage branching photoreaction with conformationally flexible intermediate is analyzed. The consideration is restricted to the case of ground-state conformational control. A violation of the reciprocity low as applied to the reactions with alternating photo and dark proces...

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Bibliographic Details
Published in:Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 1996-05, Vol.96 (1), p.7-12
Main Authors: Dmitrenko, Olga G., Serikov, Alexander A., Terenetskaya, Irina P.
Format: Article
Language:English
Subjects:
Chemistry
Conformational equilibrium
Conformational flexibility
Exact sciences and technology
General and physical chemistry
Intensity effect
Photochemistry
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
Provitamin D photosynthesis
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Summary:The principal model of multistage branching photoreaction with conformationally flexible intermediate is analyzed. The consideration is restricted to the case of ground-state conformational control. A violation of the reciprocity low as applied to the reactions with alternating photo and dark processes is emphasized. Applications to the reactions of monomolecular photoisomerization of abundant compounds with triene chromophore are discussed. In the specific case of the previtamin D photosynthesis the ways of purposeful influence on the pathway and the products yield of the reaction are exposed. In particular, opportunities connected with an influence on the conformational equilibrium and with the use of high intensity laser irradiation, as well as the possibilities of the temperature control are considered.
ISSN:1010-6030
1873-2666
DOI:10.1016/1010-6030(95)04277-6