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25 February 1994 ELSEVIER Chemical Physics Letters 218 (1994) 504-514
 

Summary: 25 February 1994
CHEMICAL
PHYSICS
LETTERS
ELSEVIER Chemical Physics Letters 218 (1994) 504-514
Femtosecond dynamics of coherent photodissociation-
recombination of I2 isolated in matrix Ar
R. Zadoyan, Z. Li, P. Ashjian, C.C. Martens, V.A. Apkarian
Department of Chemistry, University of California, Irvine, CA 92717-2025, USA
Received 20 October 1993; in final form 23 December 1993
Abstract
Pump-probe studies of I2 in matrix Ar, with a time resolution of 180 fs, are reported. The experiments are simulated using
classical molecular dynamics. Dissociative excitation of I,(A) results in coherent cage-induced recombination on the A/A'
surfaces. The recombinant molecule vibrates coherently even after extensive energy loss.
1. Introduction
Studies of the photodissociation of a diatomic
molecule allow the description of one of the most
fundamental processes in chemistry, namely, the
cleavage of the chemical bond. In condensed media,
the separation of photofragments is subject to hin-

  

Source: Apkarian, V. Ara - Department of Chemistry, University of California, Irvine

 

Collections: Chemistry