Volume 49 (2006)

ANHARMONIC REDUCTION FACTOR FOR OCTAHEDRAL SYSTEM WITH E(x)e COUPLING
Pages 180-187
Gh. E. Drăgănescu, N. M. Avram, CN. Avram, M. G. Brik

Abstract
Following the Öpik and Price method for harmonic vibration of a physical system (molecule, crystal), in this paper we calculate the new equilibrium position of the system due to anharmonic vibronic interaction. We consider a system with ochaedral symmetry for which double degenerate electronic state are coupled to double degenerate anharmonic vibrations of the nuclei. For such system we studied the quenches. of the orbital angular momentum and Jahm Teller interaction using for vibrations the clasical Morse wave function and also anharmonic coherent states. The liniar approximation of the vibronic coupling were used to obtain orbital reduction factor for the considered system.

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