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On the reaction between ethylene and cyclopentene, a radical mechanism
Author(s) -
Benson Sidney W.
Publication year - 1980
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550121008
Subject(s) - chemistry , cyclopentene , disproportionation , reaction rate constant , yield (engineering) , radical , ethylene , activation energy , rate equation , reaction mechanism , photochemistry , thermodynamics , computational chemistry , kinetics , organic chemistry , quantum mechanics , catalysis , physics
The bimolecular reactionis shown to proceed via a simple, nonchain, radical mechanism:with the net reaction the same as (1). Rate constants are estimated for each step and for each possible competing reaction and shown to yield minor or negligible side reactions in agreement with the observations of Lalonde and Back. Estimated and observed rate constants (1) and (1′) are in excellent agreement with the assumption that k' ‐1 is a typical radical disproportionation with zero activation energy. From the reported data a best value for k′ 1 is\documentclass{article}\pagestyle{empty}\begin{document}$$ \log k'_1 [l./mol\,\sec ] = 10.3 - 44.3/\theta $$\end{document}where θ = 2.303 RT kcal/mol.