Behaviour of molecules of ion solvate shell in alternating electric field

Behaviour of nearest to ion solvent molecules in the absence and at asymmetric atternating electric field superposition is illustrated by an example of alkali metal ions. The ion diffusion rate in the solvent is shown to correlate with mobility of the nearest molecules of the solvent. This effect is interpreted as a consequence of a double character of ion migration in the solvent - displacements together with solvating ion molecules and displacements without a solvant shell. The last should lead to difference in diffusion coefficients of isotopic ions. The isotopic effect in ion diffusion in the electrolyte solvent can be potentiated by alternating electric field superposition