Solvation Effect of Li+ on the Voltammetric Properties of [PMo12O40]3−. Part 2: Comparative Studies on the Preferential Solvation in Acetonitrile+S and Acetone+S Mixtures

摘要: For [PMo12O40]3−, the presence of Li+ produced a two-electron wave at nearly same potential as first one-electron in acetonitrile or acetone. The voltammetric behavior [PMo12O40]3− binary mixture and solvent S was compared with those acetone S. When donor number (DN) S>20, converted into waves such mixtures. conversion occurred lower mole fractions an acetonitrile+S than acetone+S mixture. 7Li NMR results showed that preferential solvating ability greater former A linear relationship found between iso-solvation point xiso(S) reciprocal difference DNs acetonitrile, which gave basis to explain anomalies observed for H2O.