In the framework of hydrodynamic approach dynamical properties of ions are studied taking into account solvation. Density profile near the ion is described by the model potential which depends on the distance from the centre of ion. Amplitude of the potential is considered to be a fluctuating quantity. Together with random location of ions these amplitude fluctuations lead to additional disordering of a viscous liquid. For a solvated ion the linearized hydrodynamical problem is solved. For the model two-parameter potential, expressions for the dissipation function and diffusion coefficient are found. Obtained theoretical Mossbauer spectrum has the asymptotics which is typical for highly viscous liquids.Comments: Refs. 15, Tabs. 0, Figs. 0.
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