Studies on the analytical curves of diatomic molecules using algebraic and energy-consistent method

被引:4
|
作者
Yuan Li [1 ]
Fan Qun-Chao [1 ]
Sun Wei-Guo [1 ,2 ]
Fan Zhi-Xiang [1 ]
Feng Hao [1 ]
机构
[1] Xihua Univ, Sch Phys & Chem, Res Ctr Adv Computat, Chengdu 610039, Peoples R China
[2] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Peoples R China
基金
中国国家自然科学基金;
关键词
algebraic method; energy consistent method; potential energy function; diatomic molecule; GROUND-STATE; EXCITED-STATES; POTENTIALS; SPECTROSCOPY; FORM; NALI;
D O I
10.7498/aps.63.043102
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The analytical potential energy curves of stable diatomic electronic states are investigated based on the algebraic method (AM) and energy consistent method (ECM). The AM-ECM method is applied to 4 electronic states of Li-7(2) -2(3) Sigma(+)(g), KH-X-1 Sigma(+), NaLi-X-1 Sigma(+) and NaLi-A(1) Sigma(+). The results show that the AM-ECM potentials are superior to some other analytical potentials, and can generate accurate analytical potential expressions of these electronic states in the molecular asymptotic and dissociation region.
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页数:6
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