Abstract
23 Na n.m.r. chemical shifts and iodide ion CTTS band maxima have been used as probes for ion–ion and ion–solvent interactions for NaI in ethylene glycol (EG)–acetonitrile (AN) and propylene glycol (PG)–acetonitrile mixtures. Since EG–AN mixtures are approximately isodielectric, changes in ion–solvent interactions on transfer from the pure solvents to EG–AN mixtures can be attributed to changes in the short-range, ‘chemical’ interactions. In combination with a stepwise thermodynamic model for solvation in a binary solvent taking into account non-ideal solvent behaviour, quantitative evidence for preferential solvation by the glycol component was obtained.
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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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