The relations between the stochastic and transition-state theories are reconsidered on the basis of a harmonic oscillator model. It is shown from the physical point of view that both theories are not equivalent.
On the equivalence between the microscopic frictional theory and transition-state theory
โ Scribed by Masataka Nagaoka; Naoto Yoshida; Tokio Yamabe
- Publisher
- John Wiley and Sons
- Year
- 1996
- Tongue
- English
- Weight
- 618 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0020-7608
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โฆ Synopsis
The generalized Langevin equations are presented by considering such microscopic motions of molecules described by the microscopic Hamiltonian whose potential function is quadratic and internal degree of freedom is multidimensional. Considering the long time behavior of the reactive mode, the Grote-Hynes equation has been derived from the generalized Langevin equations. Furthermore, we have proved that solving the Grote-Hynes equation is equivalent to solving the eigenvalue problem for the whole system, and then the Grote-Hynes treatment coincides with the transition-state theory for the whole system. 0
๐ SIMILAR VOLUMES
For thermal reactants, it is shown that classical transition state theory and collision theory yield the very same explicit expression for the steric factor in terms of the 3N-7 internal coordinates dependence of the barrier to reaction. Various special cases are worked out for an atom-diatom exchan