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Proceedings Paper

Theory and simulation of energy transfer dynamics in van der Waals clusters
Author(s): Craig C. Martens; Zhiming Li; Angela Borrmann
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Paper Abstract

An overview of our recent work on the theory and simulation of the vibrational predissociation dynamics of I2(B,v)-Ar13 clusters is given. The decay of the intact cluster induced by vibrational relaxation of the excited impurity exhibits unusual nonexponential behavior, characterized by an instantaneous rate that increases with time. A hybrid statistical model is described, which explicitly takes into account the slow relaxation of the impurity while assuming rapid redistribution of energy among the low frequency cluster modes. This model provides a good description of the statistical dissociation dynamics. A direct mechanism for rapid and selective ejection of rare gas atoms from the system is identified, and understood in terms of correlated binary collisions between molecule and `solvent' atoms facilitated by a nonlinear resonance phenomenon.

Paper Details

Date Published: 22 April 1993
PDF: 12 pages
Proc. SPIE 1858, Laser Techniques for State-Selected and State-to-State Chemistry, (22 April 1993); doi: 10.1117/12.143098
Show Author Affiliations
Craig C. Martens, Univ. of California/Irvine (United States)
Zhiming Li, Univ. of California/Irvine (United States)
Angela Borrmann, Univ. of California/Irvine (United States)

Published in SPIE Proceedings Vol. 1858:
Laser Techniques for State-Selected and State-to-State Chemistry
Cheuk Yiu Ng, Editor(s)

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