Abstract
Formulae are derived which describe the increase in the total proton magnetic relaxation rate relative to the intramolecular relaxation rate in a solvent mixture when solvent molecules of one kind are enriched in the solvation sphere of a dissolved ion. Experimental nuclear magnetic relaxation results regarding the application of these formulae for solutions of Mg(ClO4)2, KI and RbI in water + methanol mixtures are reported. It is shown that preferential solvation effects are present in these systems, they are ascribed to preferential hydration of the cations.
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Schedule a callMore From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
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