Solvent effects on the thermodynamics of aquocobalamin chloride and model compounds in dioxane-water mixtures

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Abstract

The solubilities of aquocobalamin chloride and eight other cobalt(III) complexes have been measured in dioxane–water mixtures. For aquocobalamin chloride, aquanitrocobaloxime and aquamethylcobaloxime solubilities have also been measured as a function of temperature. The transfer thermodynamic functions mG°, mH° and mS° have been calculated. The results may be accounted for in terms of the cavity energy and specific interactions. A difference has been found between the transfer functions of the aquocobalamin cation in dioxane–water mixtures and those in acetonitrile–water mixtures.
Original languageEnglish
Pages (from-to)3331-3341
JournalJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
Volume82
Issue number11
DOIs
Publication statusPublished - 1986

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