Effects of translational diffusion on dielectric friction in a dipolar liquid

Vijayadamodar, G. V. ; Chandra, A. ; Bagchi, B. (1989) Effects of translational diffusion on dielectric friction in a dipolar liquid Chemical Physics Letters, 161 (4-5). pp. 413-419. ISSN 0009-2614

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000926...

Related URL: http://dx.doi.org/10.1016/0009-2614(89)85108-5

Abstract

A microscopic theory of the effects of dipolar solvents dynamics on the dielectric friction of a rotating dipolar solute is presented. We predict that translational diffusion of solvent molecules can significantly reduce the value of the zero-frequency dielectric friction. We find that the orientational correlation function of the solute is non-exponential in general, but can be profoundly influenced by the translational diffusion.

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