Gibbs Transfer Energies and Solvent Transport Numbers of Some Copper(II) Salts in Methanol-Dimethylformamide Mixtures

Varghese, A.V., Kalidas, C., Singh, P. and Hefter, G. (1995) Gibbs Transfer Energies and Solvent Transport Numbers of Some Copper(II) Salts in Methanol-Dimethylformamide Mixtures. Australian Journal of Chemistry, 48 (5). pp. 987-996.

Abstract

Standard Gibbs energies of transfer have been determined for copper(II) iodate, benzoate and formate at 30°C in methanol- dimethylformamide mixtures by solubility measurements. Single-ion transfer energies were obtained by using the negligible liquid junction potential assumption, along with relevant literature data, and are in excellent agreement with values estimated from the reference electrolyte ( tatb ) assumption. The results obtained indicate that all of these salts are heteroselectively solvated in these mixtures, with Cu2+ being preferentially solvated by dmf and the anions by MeOH. This model is consistent with calculations based on the quasi-lattice quasi-chemical theory of Marcus and with solvent transport numbers obtained from e.m.f . measurements.

Item Type:	Journal Article
Murdoch Affiliation(s):	School of Chemical and Mathematical Science
Publisher:	Commonwealth Scientific and Industrial Research Organization Publishing
Copyright:	(c) CSIRO
URI:	http://researchrepository.murdoch.edu.au/id/eprint/1528

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