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Faraday Discuss., 1997, 108, 255269 Lattice dynamics from the "eyes of the chromophore

Summary: Faraday Discuss., 1997, 108, 255╚269
Lattice dynamics from the "eyes¤ of the chromophore
Real-time studies of isolated in rare gas matricesI
R. Zadoyan, J. Almy and V. A. Apkarian*
Department of Chemistry, University of California, Irvine, CA 92697-2025, USA
Molecular iodine isolated in rare gas solids is used as a model system to
develop the framework for interpretation of condensed phase pump╚probe
observables, specializing in information content regarding multi-body
dynamics. The principles are illustrated through a series of examples, where,
beside the molecular vibronic coherence, the cage motions can be directly
dissected. The large variety of behaviors which can be staged in this system
include: elastic cage recoil, highly non-linear and dissipative cage response,
long-lived cage coherence driven through guest╚host resonances, nearly
decoupled guest╚host dynamics, and cage induced dynamical solvation of
electronic surfaces. Although the underlying dynamics can be understood in
great depth when aided by simulations, we attempt a clear distinction
between direct experimental observables and inferences based on simula-
1 Introduction


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


Collections: Chemistry