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Photoisomerization of azoethane in hydrocarbon glasses at 77 K. Effect of the “matrix memory”

✍ Scribed by V.I. Pergushov; O.N. Bormot'ko; V.S. Gurman

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
376 KB
Volume
51
Category
Article
ISSN
0009-2614

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✦ Synopsis

The trans+cis and cis-trans photoisomerization of azoethane induced with light of A = 3 13-390 nm has been studied in hydrocarbon glasses at 77 K. The quantum yields of isomerization have been shown to be about 0.3. The yields increase slightly with growing fret volume of the matrix and do not depend on the wavelength. The quantum yield of isomerization increases up to 0.7 when the matrix Dvours isomerbation. A model has been suggested of local heating and "memory" of the matrix which accounts for the experimental results.

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