Digitale Medien
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
98 (1993), S. 5486-5498
ISSN:
1089-7690
Quelle:
AIP Digital Archive
Thema:
Physik
,
Chemie und Pharmazie
Notizen:
Approximate version of the phase-space transport theory for vibrational predissociation of the van der Waals complexes with two degrees of freedom is proposed and tested. The theory uses the concept of phase-space bottlenecks which govern the phase-point stochastic diffusion. The global transport is treated as a sequence of the transitions across the bottlenecks within a kineticlike model. Simplified formulas for the transition probabilities across dissociation separatrix (intermolecular bottleneck) and Golden cantori (intramolecular bottlenecks) are obtained under the zeroth-order approximation. Applications to some model complexes indicate the ability of the model to reproduce correctly individual bottleneck parameters as well as the total predissociation rates. Some observations concerning the multibottleneck kinetic models are discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.464898
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