K_2分子部分电子态的高阶振动能级和离解能的精确研究  

Studies on the high-lying vibrational energies and molecular dissociation energies for some electronic states of K_2 molecule

作　　者：刘艳[1] 任维义[1] 王阿署[1] 刘松红[1] 

机构地区：[1]西华师范大学理论物理研究所,南充637002

出　　处：《物理学报》2008年第3期1599-1607,共9页Acta Physica Sinica

基　　金：四川省教育厅重点项目(批准号:2006A080);西华师范大学科研启动基金(批准号:05B016)资助的课题~~

摘　　要：鉴于K2分子电子态的振动能谱和分子离解能De在实际研究和应用中的重要性,应用Sun,Ren等人提出的基于微扰理论的代数方法(AM)和基于AM的代数能量方法(AEM)研究了K2分子的X1Σg+,a3Σu+,0g-,B1Πu和33Πg电子态的振动光谱常数和包括高激发振动态的完全振动能谱{Eυ},并且获得了这些电子态的正确理论离解能,从而为需要这些难以从实验中获得的K2分子的精确振动光谱和离解能的科学研究提供必要的物理数据.In view of the importance of the full vibrational spectrum and the molecular dissociation energies of K2 molecule to many studies and applications, this paper uses the SUN and REN＇s algebraic method （AM） which is based on perturbation theory and the algebraic energy method （AEM） based on the AM to study the vibrational spectroscopic constants, and the full vibrational spectra （Ev） including the excited high-lying vibrational energies of electronic statesX^1Σg^＋,a^3Σu^＋,0g^-,B^1Πu and 3^3^Πg of K2 molecule, and obtain the accurate theoretical values of dissociation energies（De） of these states. The full vibrational spectra, especially the high-lying vibrational energies and dissociation energies, are difficult to determine experimentally, so this study can provides physical data for scientific research.

关 键 词：K2分子 代数方法 高阶振动能级 离解能 电子态 

分 类 号：O561.4[理学—原子与分子物理]