Accession Number : AD0737987

Title :   Optical Model for Vibrational Relaxation in Reactive Systems.

Descriptive Note : Technical rept.,

Corporate Author : PURDUE UNIV LAFAYETTE IND PROJECT SQUID HEADQUARTERS

Personal Author(s) : Poulsen,Lise Lotte ; Ross,John ; Steinfeld,Jeffery I.

Report Date : FEB 1972

Pagination or Media Count : 24

Abstract : The probabilities for vibrational transitions in the presence of open reactive channels are calculated with an optical model. A linear collision of an atom and a diatomic molecule is considered. The Distorted Wave Born Series is derived and an analytic expression is given for the first order result for an exponential repulsive potential. A semiclassical analysis is also presented. The results are applied to an electronically excited I2 molecule colliding with an inert atom. The vibrational transition probabilities are found to be appreciably affected only in the few cases where the predissociation probability is very high, that is larger than about 0.3. (Author)

Descriptors :   (*DIATOMIC MOLECULES, CHEMICAL REACTIONS), (*CHEMICAL REACTIONS, *MOLECULAR ENERGY LEVELS), MOLECULAR ENERGY LEVELS, EXCITATION, IODINE, DISSOCIATION, WAVE FUNCTIONS, REACTION KINETICS, OPTICAL PROPERTIES

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE