Quantum mechanical and kinetic studies of the reaction of methyl radicals with chlorine molecules
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Authors
Drougas, E.
Papayannis, D. K.
Kosmas, A. M.
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American Chemical Society
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peer reviewed
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Journal of Physical Chemistry A
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Description
Quantum mechanical electronic structure calculations were carried out to determine equilibrium geometries, energetics, and normal-mode frequencies for stationary points along the minimum energy reaction path for the reaction of methyl radicals with chlorine molecules. The results are used to calculate the rate coefficient, employing both extended RRKM theory and quasi-classical trajectory techniques. The results of both methods agree well with each other and with the experimental measurements. The reactivity is investigated and is shown to be greatly enhanced by increasing the initial translational energy of the reactants. A large part of the total available energy is shown to be directed into product vibration, in good consistency with the experimental observations.
Description
Keywords
potential-energy surface, negative activation-energies, absolute rate constants, ab-initio calculations, transition-state, dynamics, br-2, cl-2, scattering, i-c3h7
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<Go to ISI>://000176592700016
http://pubs.acs.org/doi/pdfplus/10.1021/jp013094n
http://pubs.acs.org/doi/pdfplus/10.1021/jp013094n
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en
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Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών