Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (12): 2224.

• Articles • Previous Articles     Next Articles

On the Theoretical Study of the Potential Energy Surface for the C2H+NO2Reaction

WEI Zhi-Gang, HUANG Xu-Ri, SUN Yan-Bo, SUN Chia-Chung   

  1. State Key Laboratory of Theoretical and Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, China
  • Received:2003-07-16 Online:2003-12-24 Published:2003-12-24

Abstract: Asinglet potential energy surface for the reaction of C2H radical with molecular NO2is studied at the CCSD(T)/6-311G(d,p)//B3LYP/6-311G(d,p)+ZPE level to give three products P1(HCCO+NO), P2(HCNO+CO) and P3(HCN+CO2). The RRKM calculations are performed to estimate the total and individual rate constants. It is shown that the total rate for the reaction C2H+NO2can be expressed as 1.427×10-12×T0.556×exp(190.547/T) cm·molecule·s-1, and the major products P1 is more than 96% and the minor products P2 and P3 are less than 4%.

Key words: Ethynyl radical, Nitrogen dioxide, Potential energy surface of reaction, Rate constant

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