高等学校化学学报 ›› 2016, Vol. 37 ›› Issue (7): 1390.doi: 10.7503/cjcu20150992

• 物理化学 • 上一篇    下一篇

振动激发对O+DClOD+Cl反应动力学性质的影响

许雪松(), 李磊, 荆波, 杨鲲   

  1. 大连海事大学物理系, 大连 116026
  • 收稿日期:2015-12-30 出版日期:2016-07-10 发布日期:2016-06-14
  • 基金资助:
    国家自然科学基金(批准号: 11304028)资助

Effect of Vibrational Excitation on the Stereodynamics of Reaction O+DClOD+Cl

XU Xuesong*(), LI Lei, JING Bo, YANG Kun   

  1. Department of Physics, Dalian Maritime University, Dalian 116026, China
  • Received:2015-12-30 Online:2016-07-10 Published:2016-06-14
  • Contact: XU Xuesong E-mail:xuxuesong@dlmu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.11304028)

摘要:

采用准经典轨线方法讨论了反应物分子的振动激发对O+DCl?OD+Cl反应动力学性质的影响. 计算结果表明, 反应物分子的振动激发对(2π/σ)(dσ00/dωt), (2π/σ)(dσ20/dωt)和(2π/σ)(dσ22+/dωt)3个极化微分反应截面和产物分子转动角动量取向程度的影响比较显著. 变化规律反映出反应物分子的高振动激发使产物分子倾向于在平行于散射面的平面内转动.

关键词: O+DCl反应, 振动激发, 极化微分反应截面, 矢量相关

Abstract:

The effects of vibrational excitation of reagent molecules on the stereo-dynamical properties of O+DCl?OD+Cl reaction were discussed via the quasi-classical trajectory(QCT) method. The polarization-dependent differential cross sections(PDDCSs), the polar distributions of P(θr) and P(φr) were calculated. The results show that the initial vibrational excitation of the reagent molecules has considerable influences on stereodynamics of the title reaction. When the reagent molecules are excited to higher vibrational levels the rotations of product molecule prefer to parallel to the scattering plane, in other words, "in-plane" mechanism.

Key words: O+DCl reaction, Vibrational excitation, Polarization-dependent differential cross section, Vector correlation

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