Abstract

Copper(I) solvation in mixed solvent systems containing acetonitrile (AN) and co-solvents water (W), methanol (ME), dimethylformamide (DMF), trimethyl phosphate (TMPA), trimethyl phosphite (TMP) or pyridine (PY) have been studied using 63Cu, 65Cu and 31P NMR. Evidence for preferential solvation by AN is given for the first four systems whereas the latter two are characterized by strong preferential solvation of the copper(I) ion by the co-solvent. From the linewidths of the 63Cu and 65Cu signals the rotational correlation times τR of the solvates Cu(AN)+4 and Cu(PY)+4 have been determined.

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