Acta Chimica Sinica ›› 1999, Vol. 57 ›› Issue (6): 590-595. Previous Articles     Next Articles

Original Articles

CH~4氢抽提反应的非绝热trapping型的动力学研究

殷淑霞;王艳;冯文林   

  1. 北京师范大学化学系.北京(100875)
  • 出版日期:1999-06-15 发布日期:1999-06-15

Studies on kinetics of nonadiabatic trapping models of the reaction CH~4+H=CH~3+H~2

Yin Shuxia;Wang Yan;Feng Wenlin   

  1. Beijing Normal Univ., Dept of Chem..Beijing(100875)
  • Online:1999-06-15 Published:1999-06-15

The kinetics of nonadabatic trapping models of CH~4+H=CH~3+H~2 was studied. On the basis of the Intrinsic Reaction Coordinate (IRC) and IRC information computed by the ab initio method at QCISD/6-311g^*^* level, the flux integrals for collinear system and thermal system of the title reaction were calculated, respectively. The results show that the collinear system of the title reaction is a nonadiabatic trapping model but the thermal reaction is not. Using unified statistical theory (UST) and microcanonical variational transition state theory, rate constants were calculated. The thermal rate constants from 300K to 1500K are in excellent agreement with the experiment results.

Key words: METHANE, HYDROGEN, IRC

CLC Number: