高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (9): 1253.

• 论文 • 上一篇    下一篇

考虑相关能效应的过渡态计算方法

贺黎明1, 倪敏1, 金乾元1, 刘洪霖2   

  1. 1. 华东化工学院物理系, 上海, 200237;
    2. 中国科学院上海治金研究所
  • 收稿日期:1991-09-30 出版日期:1992-09-24 发布日期:1992-09-24
  • 通讯作者: 贺黎明
  • 基金资助:

    国家自然科学基金

A Transitlon State Calculation Method with Electronic Correlation

HE Li-Ming1, NI Min1, JIN Qian-Yuan1, LIU Hong-Lin2   

  1. 1. Department of Physics, East China University of Chemical Technology, Shanghai, 200237;
    2. Shanghai Institute of Metallurgy, Academia Sinica
  • Received:1991-09-30 Online:1992-09-24 Published:1992-09-24

摘要: 提出了一种在X_a方法基础上,同时包含电子相关效应和考虑电子自相互作用的过渡态计算方法.由此计算的一系列原子电离势的结果表明,相关能对电离势的计算结果有很大影响,其数值为—0.41eV~0.94eV.引入相关能效应使计算结果明显趋于合理.此计算模型兼有简便和合理的特点,且能适用于分子体系的计算.

关键词: 相关能, 自相互作用, 过渡态, 电离势

Abstract: A new transition-state calculation method based on the X.theory is presented,which includes the correlation effect with electronic self-interaction correction.Ionization potentials of atoms were calculated.The numerical results from the calculations indicate that correlation energy has a great influence on the ionization potential and the values of which are from-0.41 eVto 0.94 eV,The calculated results combmig the correlation effect are quite good.This new scheme has the advantage of simplicity and reasonableness,and can be applied to molecular calculation.

Key words: Correlation energy, Self-interation, Transition-state, lonization potential

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