Accurate ab initio calculations on the rate constants of the hydrogen abstraction reaction C2H3+H2→H+C2H4

2004 ◽  
Vol 668 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Qian Shu Li ◽  
Rui Hua Lü ◽  
Chao Yang Wang
2003 ◽  
Vol 664-665 ◽  
pp. 229-236 ◽  
Author(s):  
M Bahri ◽  
Y Tarchouna ◽  
N Jaı̈dane ◽  
Z Ben Lakhdar ◽  
J.P Flament

Author(s):  
Nguyen Trong Nghia

C2H5OH has been using as an alternative fuel for decades; HO2 also plays a pivotal role in the combustion. The kinetics and mechanism for the reaction between C2H5OH and HO2 radical has been investigated using the molecular parameters for the reactants, transition states and products predicted at the CCSD(T)//B3LYP/6-311++G(3df,2p) level of theory. There are ten pair products have been found including C2H5O + H2O2 (PR1), CH3CHOH + H2O2 (PR2), CH2CH2OH + H2O2 (PR3), CH3CH2OOOH + H (PR4), C2H5 + HOOOH (PR5), CH3CH2OOH + OH (PR6), CH3CH(OH)OOH + H (PR7), HOCH2CH2OH + H (PR8), HOOCH3 + CH2OH (PR9), and CH3 + HOOCH2OH (PR10) in which the second and third ones are the major channels. The rate constants and branching ratios for all H-abstraction reactions have been calculated using the conventional transition state theory with asymmetric Eckart tunneling corrections for the temperature ranging from 298 to 2000 K.


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