高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (7): 1274.

• 论文 • 上一篇    下一篇

D+HCN反应的SVRT含时波包理论研究

马万勇1,2, 杨光辉2, 周建华1, 韩克利2   

  1. 1. 山东轻工业学院化工系, 济南 250100;
    2. 中国科学院大连化学物理研究所分子反应动力学国家重点实验室计算化学中心, 大连 116023
  • 收稿日期:2002-09-10 出版日期:2003-07-24 发布日期:2003-07-24
  • 通讯作者: 马万勇(1965年出生),男,博士,教授,从事分子反应动力学研究.E-mail:mawy@jn-public.sd.cninfo.net E-mail:mawy@jn-public.sd.cninfo.net
  • 基金资助:

    山东省自然科学基金(批准号:Q99B10和Q2002B03)资助

Time-dependent Wave Packet Theoretical Study for D+HCN Reaction with SVRT Model

MA Wan-Yong1,2, YANG Guang-Hui2, ZHOU Jian-Hua1, HAN Ke-Li2   

  1. 1. Department of Chemical Engineering, Shandong Institute of Light Industry, Jinan 250100, China;
    2. Center for Computational Chemistry, State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
  • Received:2002-09-10 Online:2003-07-24 Published:2003-07-24

摘要: 基于Horst的势能面,用SVRT(SemirigidVibratingRotorTarget)方法对D+HCN反应进行了含时波包动力学研究,计算得到了不同初始振转态的总反应几率和积分反应截面,采用UniformJ-shifting方法得到该反应的热速率常数.计算结果与H+HCN反应进行了比和讨论.

关键词: 反应截面, 速率常数, 反应散射, 波包动力学

Abstract: Time-dependent wave packet calculation for the D+HCN reaction is carried out of employing potential energy surface with the semirigid vibrating rotor target(SVRT) model. We calculated the total reaction probabilities from the initial ground rotational-vibrational state for various values of total angular momentum J. The rate constants are obtained by using Uniform J-shifting approach. The results show that the SVRT model is a valid and reasonable model for the quantum dynamics calculations of polyatomic molecule systems. The reaction cross sections and rate constants are compared with the previous results for the isotopic reaction H+HCN on the same potential energy surface.

Key words: Reaction cross section, Rate constant, Reaction scattering, Wave packet dynamics

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