Chem. J. Chinese Universities ›› 2002, Vol. 23 ›› Issue (11): 2129.

• Articles • Previous Articles     Next Articles

The Reaction Mechanism Between ClONO2 and H

SUN Ren-An1,2, TAO Zhan-Liang1, SUN Yan-Bo2, JIN Fei1, HAN Ke-Li3   

  1. 1. Department of Chemistry, Liaoning Normal University, Dalian 116029, China;
    2. State Key Lab of Theoretical and Computational Chemistry, Jilin University, Changchun 130023, China;
    3. State Key Lab of Molecular Reaction Dyanmics, Dalian Institute of Chemical Physics, CAS, Dalian 116023, China
  • Received:2002-06-20 Online:2002-11-24 Published:2002-11-24

Abstract: The reaction mechanisms of reactions ClONO2+H→HONO2+Cl(a), ClONO2+H→OH+ClONO (cis) (b) and ClONO 2+H→OH+ClONO (trans) (c) have been studied with Gaussian 98 program and B3LYP/6-31G* method. The transition states of various possible reaction pathways were obtained and were verified by internal reaction coordinate (IRC) analysis. The results show that the activation energy of the three reactions are almost the same and are 19.5, 20.0 and 23.2 kJ·mol-1 respectively. In the dynamic way, considering the activation energy, we conclude that the three reactions can occur simultaneously. Reaction (a) gives so more energy than reaction (b) and (c) that it is more likely to occur.

Key words: ClONO2, Density functional theory, Reaction mechanism, Transition state

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