Regularities of Solvation of Halide Ions in Protic and Aprotic Media

Resumo

Regularities of interaction of halide anions with molecules of protic and aprotic solvent in the near coordination sphere and their effect on solvation in solutions are considered. While the solvation energy in an aprotic solvent is mainly represented by the electric component, the solvation energy in protic media also contains in addition to the electric component the chemical one related to the hydrogen bond. A microscopic model of interaction between the anion and proton solvent molecule is suggested that simulates the hydrogen atom dynamics in the field of the proton donor and acceptor and allows explaining the mechanism of formation of the chemical solvation energy component.