The kinetics and mechanism for the unimolecular decomposition of acetophenone: Ab initio mo and VTST/RRKM calculations

S. P. Ju, H. T. Chen, Ming-Chang Lin, J. G. Chang, M. H. Weng

研究成果: Conference contribution同行評審

摘要

The kinetics and mechanism for the unimolecular dissociation of acetophenone have been studied at the G2M (RCC, MP2) level of theory and rate constant prediction with statistical theory (VTST/RRKM) calculations. Seven reaction channels are considered in this study and the growing string method developed by Quapp [J. Chem. Phys. 122, 174106 (2005)] is used to obtain the potential energy surface (PES) for each channel. Four primary decomposition channels of acetophenone have been found to produce C6H5CO + CH3 without a barrier with the formation enthalpy of 80.62 kcal/mol, C6H5 + CH3COwithout a barrier with the formation enthalpy of 95.92 kcal/mol, C6H6 + CH2CO with a barrier of 82.01 kcal/mol and C6H4CO + CH4 with a barrier of 84.71 kcal/mol. Based on the PES, we carried out VTST and RRKM calculations to predict the rate constants for these processes.

原文English
主出版物標題Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2007 "Chemical and Physical Processes in Combustion"
發行者Combustion Institute
頁面503-509
頁數7
ISBN(電子)9781604239454
出版狀態Published - 21 10月 2007
事件Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2007: Chemical and Physical Processes in Combustion - Charlottesville, United States
持續時間: 21 10月 200724 10月 2007

出版系列

名字Fall Technical Meeting of the Eastern States Section of the Combustion Institute 2007 "Chemical and Physical Processes in Combustion"

Conference

ConferenceFall Technical Meeting of the Eastern States Section of the Combustion Institute 2007: Chemical and Physical Processes in Combustion
國家/地區United States
城市Charlottesville
期間21/10/0724/10/07

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