计算物理 ›› 2010, Vol. 27 ›› Issue (3): 457-462.

• 研究论文 • 上一篇    下一篇

OH分子基态和第一激发态的势能函数

黄多辉1, 张海英2, 王藩侯1, 朱正和3   

  1. 1. 计算物理四川省高校重点实验室, 四川 宜宾 644007;
    2. 宜宾学院化学与化工系, 四川 宜宾 644007;
    3. 四川大学原子分子物理研究所, 四川 成都 610065
  • 收稿日期:2009-02-08 修回日期:2009-07-02 出版日期:2010-05-25 发布日期:2010-05-25
  • 作者简介:黄多辉(1980-),男,四川广安,副教授,从事高压物理及分子势能函数研究.
  • 基金资助:
    四川省青年科技基金(03ZQ026-061);四川省青年项目(07ZB104)资助项目

Potential Energies of OH Ground State and the First Excited State

HUANG Duohui1, ZHANG Haiying2, WANG Fanhou1, ZHU Zhenghe3   

  1. 1. Key Laboratory of Computational Physics, Yibin University, Yibin 644007, China;
    2. Department of Chemistry and Chemical Engineering, Yibin University, Yibin 644007, China;
    3. Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
  • Received:2009-02-08 Revised:2009-07-02 Online:2010-05-25 Published:2010-05-25

摘要: 采用多参考组态作用(MRCI)方法和aug-cc-pVTZ,aug-cc-pVQZ,cc-pV5Z,6-311++g(d,p)和6-311++g(3df,3pd)几个不同基组对OH分子的基态(X2Π)和第一激发态(A2Σ+)的势能曲线进行计算.选用Murrell-Sorbie势能函数对曲线进行拟合,利用拟合的参数值计算出力常数和光谱数据.结果表明计算值与实验值吻合较好.

关键词: MRCI, OH, 势能函数, 光谱常数

Abstract: MRCI method with aug-cc-Pvtz,aug-cc-pVQZ,cc-pV5Z,6-311 ++ g(d,p) and 6-311 ++ g(3df,3pd) basis sets is used to calculate potential curves of OH ground state and the first excited state.Murrell-Sorbie potential functions are fitted.Force constants and spectroscopic data are obtained.Our results are in agreement with experimental values.

Key words: MRCI, OH, potential function, spectroscopic data

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