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THE PHOTOSENSITIZED OXIDATION OF SULPHIDES
Author(s) -
Laver H. S.,
MacCallum J. R.
Publication year - 1978
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1978.tb06934.x
Subject(s) - chemistry , methanol , photochemistry , reaction rate constant , reaction mechanism , polar , inorganic chemistry , organic chemistry , catalysis , kinetics , physics , quantum mechanics , astronomy
Abstract— The rates of photosensitized oxidation of a number of sulphides were determined under standard conditions in 1, 1, 2,2‐tetrachloroethane and in methanol. It was found that the ratio of the rates of reaction in the two solvents was not constant for different sulphides and that t ‐butyl sulphide does not react in methanol. It is inferred that the presence of an H atom in the α position is essential for reaction in polar solvents and an appropriate mechanism is suggested. The results indicate that reaction in chlorinated solvents may take place by a different mechanism which possibly involves H‐abstraction by triplet sensitizer.