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Kinetics of thermal gas-phase decomposition of 2-bromopropene using static system

✍ Scribed by Jan Nisar; Iftikhar A. Awan

Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
197 KB
Volume
39
Category
Article
ISSN
0538-8066

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✦ Synopsis

Abstract

The gas phase elimination kinetics of 2‐bromopropene was studied over the temperature range of 571–654 K and pressure range of 12–46 Torr using the seasoned static reaction system. Propyne was the only olefinic product formed and accounted for >98% of the reaction. This product was formed by homogeneous, unimolecular pathways with high‐pressure first‐order rate constant k~∞~ given by the equation k~∞~ = 10^13.47 ± 0.6^ exp^−208.2 ± 6.7^ (kJ mol^−1^)/RT. The error limits are 95% certainty limits. The observed Arrhenius parameters are consistent with the four centered activated complex. The presence of methyl group on α‐carbon lowers the activation energy by 41 kJ mol^−1^. © 2006 Wiley Periodicals, Inc. Int J Chem Kinet 39: 1–5, 2007

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