Preferential solvation of silver(I), copper(I) and copper(II) ions in aqueous acetonitrile

Abstract

The preferential solvation of Ag⁺, Cu⁺ and Cu²⁺ ions in the mixed solvent water + acetonitrile has been examined on the basis of spectroscopic and other relevant data from the literature and calculated according to the quasi-lattice quasi-chemical method. This study confirms that the monovalent ions are strongly preferentially solvated by the acetonitrile component of the mixtures, whereas the divalent ion is strongly preferentially solvated by the water component.