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M. P. Zhilenko, A. P. Rudenko, A. V. Sivtseva
The nonadditivity
of contributions of parallel reactions of sulphide-anion and cysteine oxydation
with molecular oxygen to summary velocity of the catalytic process.
Abstract
The
nonadditivity of contributions of parallel reactions of sulphide-anion and
cysteine oxydation in aqueous solutions in the presence of Cu(II)-containing
polyacrylamide hydrogel has been achived. It was shown that the effect of
nonadditivity depends on the ration of substrates concentrations in mixture,
experiment continuance, presence of the catalyst and it may be positive,
negative and variable. The appearance of this effect was related to
system-dynamic properties of open catalytic system. These properties are the
result of components interaction forming the system and parallel reactions
substrates may be such components. Positive values of the nonadditivity effect
and their increase in the beginning of the process connect with catalyst
development and the appearance of cysteine oxydation semi-products having own
catalytic activity in this process.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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