ENTHALPIES OF TRANSFER OF ORGANIC ELECTROLYTE IONS IN PROTIC SOLVENTS

The enthalpies of ion transfer from methanol to water, formamide, etha nol, 1-propanol, and 2-propanol were determined on the basis of publis hed data on the enthalpies of transfer of Bu(4)NBr and Bu(4)NBPh(4) wi th account taken of universal ion solvation and ion-solvent specific i nteractions. The obtained values differ considerably from those determ ined on the Ph(4)As(+) - Ph(4)B(-) scale. Specific features of solvati on of Bu(4)N(+), Pr4N+ Ph(4)As(+), Ph(4)B(-), and Br- ions in the exam ined solvents are discussed. The use of cohesion energy density for li quids in multiple regression equations does not allow adequate estimat ion. of the contribution of cavity formation in an H-bonded solvent.