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V. L. Ivanov, S. Yu. Lyashkevich
Effect of oxygen on the chain reaction of sulfo group substitution for
bromine in l-bromo-2-hydroxynaphthalene photosensitized by
tris(2,2'-bipyridyl)ruthenium(II)
Abstract
The influence of oxygen on the proceeding of the radical-ion chain
reaction of sulfo group substitution for bromine in
l-bromo-2-hydroxynaphthaIene in an aqueous sodium sulphite solution upon
complex tris(2,2'-bipyridyl)ruthenium(H)-sensitized photolysis was
investigated. It was found that at the presence of oxygen the increase of
quantum yield of the photosensitized substitution reaction was observed. The
mechanism of influence of oxygen on photoinitiation step is discussed. The
length of chain of substitution reaction was estimated.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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