A refinement of everyday thinking: The energetic span model for kinetic assessment of catalytic cycles

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195 Scopus citations

Abstract

The energetic span model is a bridge connecting the kinetic outcome of experimental and theoretical catalysis. It proves the utility of working with Gibbs energies (E-representation) instead of the rate constants (k-representation), in line with the assertion saying that 'there are no rate-determining steps, but rate-determining states'. With this model the turnover frequency (TOF), turnover number (TON) and the kinetic determining factors can be obtained from the reaction profile of a computed catalytic cycle. In this way, it is possible to examine, explain, and predict the efficiency of a catalyst. The effect of concentrations, different pathways, preactivation and deactivation, and the comparison of catalysts and reactants are analyzed with several examples from the literature. In addition, the AUTOF program (excel version) is presented, allowing the fast and simple analysis of theoretically calculated catalytic reactions.

Original languageEnglish
Pages (from-to)795-815
Number of pages21
JournalWiley Interdisciplinary Reviews: Computational Molecular Science
Volume2
Issue number5
DOIs
StatePublished - 1 Sep 2012
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Computational Mathematics
  • Materials Chemistry

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