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Reactant–solute encounters in aqueous solutions studied by kinetic methods: hydration cosphere overlap and camouflage effects
Author(s) -
Engberts Jan B. F. N.,
Blandamer Michael J.
Publication year - 1998
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/(sici)1099-1395(199812)11:12<841::aid-poc100>3.0.co;2-o
Subject(s) - chemistry , aqueous solution , camouflage , molecule , kinetic energy , computational chemistry , organic chemistry , zoology , physics , quantum mechanics , biology
Rates of chemical reactions in aqueous solutions are often sensitive to low concentrations of added solutes such as ureas, alcohols, α‐amino acids and carbohydrates. In this work, several simple chemical reactions were used to probe this sensitivity, which arises from interactions between added solute and the reacting solute. It was found that derived interaction parameters provide a novel insight into interactions between solute molecules in aqueous solution. For example, it was possible to identify two interesting effects, which are termed (i) ‘destructive overlap’ of hydration cospheres and (ii) ‘camouflage effects’ by water–solute interactions. Copyright © 1998 John Wiley & Sons, Ltd.