The different roles of reagent vibrational excitation for endothermic and exothermic reactions

E. Pollak*, R. D. Levine

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

The surprisal analysis of trajectory generated rate constants of three endoergic reactions is employed to compare the actual effect of reagent vibrational excitation to that expected on purely energetic grounds. It is shown that the enhancement of the reaction rate is not a function of the potential energy surface alone. Rather, reagent vibrational energy has an opposite effect (as compared to the statistical limit) in the endothermic and exothermic regimes of a given endoergic reaction.

Original languageEnglish
Pages (from-to)199-204
Number of pages6
JournalChemical Physics Letters
Volume39
Issue number2
DOIs
StatePublished - 15 Apr 1976

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