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The influence of the collision strength on the short time behavior for orientational correlation functions of nonspherical molecules.

✍ Scribed by A.P. Blokhin; M.F. Gelin

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
184 KB
Volume
93
Category
Article
ISSN
0167-7322

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✦ Synopsis

The first five terms are analytically calculated for the Taylor expansion of symmetric and asymmetric top orientational correlation functions (OCFs) in the Keilson-Storer (KS) model. The three stages of the orientationai relaxation (OR) are established: (a) the free rotor stage, Ca) the stage which is governed by the angular momentum relaxation frequency, and (e) the stage which is determined by the collision strength. It is suggested that this last stage determines not only the rate of the short time decay of OCFs, but also their long time properties. The time development of logarithmic OCFs is also studied.

πŸ“œ SIMILAR VOLUMES

A consideration of orientational correla
A consideration of orientational correlation functions, time-dependent distribution functions and pictorial representations of the orientational motions of molecules.
✍ Martin S. Beevers; Graham Williams πŸ“‚ Article πŸ“… 1980 πŸ› Elsevier Science βš– 967 KB

The relationships between experimental quantities which arise due to the dynamics of molecules and the underlying time-correlation functions and timedependent distribution functions are considered, with special emphasis being given to reorientational motions as detected by dielectric and closely rel