Preferential Solvation of Silver (I) Cryptand 2,2,2 Perchlorate Complex in Water-Pyridine and Water-Dmso Mixtures
- 1 February 1999
- journal article
- research article
- Published by Taylor & Francis in Physics and Chemistry of Liquids
- Vol. 37 (2) , 175-184
- https://doi.org/10.1080/00319109908045124
Abstract
The preferential solvation of silver (I) cryptand 2,2,2 perchlorate complex has been studied in water-dimethylsulphoxide and water-pyridine mixtures by Gibbs transfer energy and solvent transport number measurements. While the Gibbs transfer energy of silver (I) cryptand 2,2,2 cation continuously decreases, that of the perchlorate ion increases with the addition of organic component in both solvent mixtures. the solvent transport number of the salt passes through a maximum, ΔPy = 10.4 and ΔDMSO = 2.5 at X Py = 0.35 and XΔDMSO = 0.45 respectively. These results indicate a heteroselective solvation of the salt with the complex cation being selectively solvated by the organic component and the perchlorate ion by water.Keywords
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