Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (7): 2279.doi: 10.7503/cjcu20210198

• Article • Previous Articles     Next Articles

Effect of Collision Energy on the Stereodynamics of the Reaction K(2S)+HF(X1Σ+)→KF(X1Σ+)+H(2S)

CHEN Hailiang1, ZHANG Zhihong2, LYU Wencai1,3()   

  1. 1.College of Physics,Qingdao University,Qingdao 266071,China
    2.School of Physics and Optoelectronics Engineering,Ludong University,Yantai 264025,China
    3.Institute of Theoretical Chemistry,Jilin University,Changchun 130021,China
  • Received:2021-03-24 Online:2021-07-10 Published:2021-06-18
  • Contact: LYU Wencai E-mail:wencailu@jlu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21773132)

Abstract:

The stereodynamics of the atom-molecule reaction K(2S) +HF(X1+)→KF(X1+) +H(2S) was studied using quasi-classical trajectory method based on the potential energy surface constructed by Sayós et al. Four generalized polarization-dependent differential cross-sections[(2π)(dσ00/dωt), (2π)· (dσ20/dωt), (2π)(dσ22+/dωt), (2π)(dσ21-/dωt)], the distributions functionPθr)], the dihedral angle distribution function[P?r)] and the polar distriloution function[Pθr?r)]are studied in detail. The results show that the rotational angular momentum j′of the product KF is not only strongly aligned along the direction perpendicular to k, but also oriented along the negative direction of the y axis. The orientation of j′depends very sensitively on the collision energy.

Key words: Stereodynamics, Quasi-classical trajectory, Vector correlation, Collision energy effect

CLC Number: 

TrendMD: