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O2分子激发态a1Δg和b1Σ+g态的分析势能函数
引用本文:黄多辉,王藩侯.O2分子激发态a1Δg和b1Σ+g态的分析势能函数[J].物理学报,2009,58(9):6091-6095.
作者姓名:黄多辉  王藩侯
作者单位:(1)宜宾学院计算物理重点实验室,宜宾 644007; (2)宜宾学院计算物理重点实验室,宜宾 644007;宜宾学院物理与电子工程系,宜宾 644007
基金项目:四川省青年科技基金(批准号:03ZQ026-061),四川省教育厅重点实验室专项(批准号:2006ZD051),四川省青年项目(批准号:07ZB104),宜宾学院青年基金(批准号:2008Z10和2007Q05)资助的课题.
摘    要:以aug-cc-pVQZ,cc-pV5Z,6-311++g(d,p)和6-311++g(3df,3pd)等为基函数,采用多组态相互作用(MRCI)方法对O2分子最低的两个激发态1Δg1Σ+g的平衡结构、谐振频率和势能曲线进行了计算.并选用Murrell-Sorbie势能函数对曲线进行拟合,利用拟合的参数值计算出了力常数和光谱数据.结果表明计算值与实验值符合较好. 关键词: MRCI 势能函数 力常数 光谱数据

关 键 词:MRCI  势能函数  力常数  光谱数据
收稿时间:1/7/2009 12:00:00 AM

The potential energy function for a1Δg and b1Σ+g states of O2 molecule
Huang Duo-Hui and Wang Fan-Hou.The potential energy function for a1Δg and b1Σ+g states of O2 molecule[J].Acta Physica Sinica,2009,58(9):6091-6095.
Authors:Huang Duo-Hui and Wang Fan-Hou
Abstract:The equilibrium structure, harmonic frequency and potential energy curves for two of the excited states a1Δg and b1Σ+g of O2 molecule were calculated by using MRCI method with aug-cc-pVQZ, cc-pV5Z, 6-311++g(d,p)and 6-311++g(3df,3pd) basis sets. The analytical potential energy functions for a1Δg and b1Σ+g of O2 was fitted by Murrell-Sorbie theory . The force constants and spectrum data were obtained according to fitted parameters. Results show that our results are good agreed with the experimental value.
Keywords:MRCI  potential energy function  force constants  spectrum data
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