原子与分子物理学报2012，Vol.29Issue(4)：597-602,6.DOI:10.3969/j.issn.1000-0364.2012.04.007
79BrF和81BrF基态X1∑+光谱性质同位素效应对结构性质的影响
The influences ofmolecule structure fromthe spectrum isotopic effect between 79BrFand 81BrF in the X1Σ+
摘要
Abstract
The dissociation limit of BrF in the X1 Σ+ ground state are analysed with Atomic and Molecular Reaction Statics. The spectrum isotopic effect between "BrF and 81BrF in the X1 Σ+ are analysed with Herzberg's isotopic theory. Based on the analysis, the isotopic influence for the vibration energy levels and the molecular potential energy function as Murrell-Sorbie potential (MS potential) are discussed. The results show that the spectrum isotopic effect between "BrF and "BrF in the X1 Σ+ is a kind of weak effect and are agreement with Herzberg's isotope theory, the deviation of low vibration level between experiment and Herzberg's isotope theory are small, for higher-order force constant f4 and higher-order spread coefficient a3, theoretical and experimental results have clearer differences, but the effect for the potential energy function is not obvious as the spread coefficient a3 is much smaller than ax and a2, the overall impact on the potential energy function is not remarkable.关键词
离解极限/光谱数据的同位素效应/振动能级/分子势能函数Key words
dissociation limit, spectrum isotopic effect, vibration energy levels, molecular potential energy function分类
数理科学引用本文复制引用
刘国跃,韩彩霞..79BrF和81BrF基态X1∑+光谱性质同位素效应对结构性质的影响[J].原子与分子物理学报,2012,29(4):597-602,6.基金项目
四川省教育厅重点科研项目(10ZA062) （10ZA062）
绵阳师范学院重点科研项目(Mnu2009009) （Mnu2009009）
