Chemistry:Variational transition-state theory

From HandWiki
Revision as of 03:06, 6 February 2024 by WikiGary (talk | contribs) (correction)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Variational transition-state theory[1] is a refinement of transition-state theory. When using transition-state theory to estimate a chemical reaction rate, the dividing surface is taken to be a surface that intersects a first-order saddle point and is also perpendicular to the reaction coordinate in all other dimensions. When using variational transition-state theory, the position of the dividing surface between reactant and product regions is variationally optimized to minimize the reaction rate. This minimizes the effects of recrossing, and gives a much more accurate result.

References