高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (4): 657.

• 研究简报 • 上一篇    下一篇

苯分子离子的理论研究

刘亚军, 邝平先, 黄明宝   

  1. 中国科技大学研究生院化学部, 北京 100039
  • 收稿日期:2000-02-29 出版日期:2001-04-24 发布日期:2001-04-24
  • 通讯作者: 刘亚军(1969年出生),男,博士研究生,从事量子化学研究.
  • 基金资助:

    国家自然科学基金(批准号:29892162)资助

Theoretical Study of the Benzene Cation

LIU Ya-Jun, KUANG Ping-Xian, HUANG Ming-Bao   

  1. Department of Chemistry, Graduate School, University of Science and Technology of China, Beijing 100039, China
  • Received:2000-02-29 Online:2001-04-24 Published:2001-04-24

关键词: 苯分子离子, Jahn-Teller效应, 从头算MPn方法, 超精细结构

Abstract: The Jahn-Teller distorted states, 2B2g and 2B1g of the benzene radical cation have been studied by using ab initio MPn and SDCImethods. The calculations indicate that 2B2g is the ground state of the benzene cation and that 2B1g is higher in energy than2 B 2g and represents a saddle point. The calculated isotropic and anisotropic hyperfine coupling constants for the 2B2g state are in excellent agreement with those obtained from the ESRexperiments. It is concluded that the benzene cation is in the 2B2g Jahn-Teller distorted state.

Key words: Benzene cation, Jahn-Teller effct, ab initio MPn, Hyperfine structure

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