Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33071
Title: Ab initio kinetics for the decomposition of hydroxybutyl and butoxy radicals of n-butanol
Authors: Zhang, P 
Klippenstein, SJ
Law, CK
Issue Date: 2013
Publisher: American Chemical Society
Source: Journal of physical chemistry A, 2013, v. 117, no. 9, p. 1890-1906 How to cite?
Journal: Journal of physical chemistry A 
Abstract: The decomposition kinetics of the hydroxybutyl and butoxy radicals (C 4H9O) arising via H abstraction from n-butanol were studied theoretically with ab initio transition-state-theory-based master equation analyses. Stationary points on the C4H9O potential energy surface were calculated at either the RQCISD(T)/CBS//B3LYP/6- 311++G(d,p) level or the RQCISD(T)/CBS//CASPT2/aug-cc-pVDZ level. Unimolecular pressure- and temperature-dependent rate coefficients were calculated over broad ranges of temperature (300-2500 K) and pressure (1.3 × 10-3 to 102 atm) by solving the time-dependent multiple-well master equation. The "well merging" phenomenon was observed and analyzed for its influence on the branching ratios and rate coefficients. The theoretical predictions were compared with the available experimental and theoretical data and any discrepancies were analyzed. The predicted rate coefficients are represented with forms that may readily be used in combustion modeling of n-butanol.
URI: http://hdl.handle.net/10397/33071
ISSN: 1089-5639
DOI: 10.1021/jp400155z
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