Transition state theory for photoisomerization rates of t r a n s-stilbene in the gas and liquid phases
- 1 April 1987
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 86 (7), 3944-3949
- https://doi.org/10.1063/1.451903
Abstract
Recently measured isomerization rates of t r a n s‐stilbene and diphenylbutadiene over a very large pressure range indicate that a medium can seemingly increase the rate beyond the gas phase high pressure limit. A model based on a generalized Langevin equation is proposed and solved using transition state theory. Rates obtained are in good agreement with experiment. The model incorporates a solvent shift which lowers the barrier to reaction. The model is based on the unification of two different approaches to the description of a dissipative harmonic bath.Keywords
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