Theoretical study of potential energy curves,spectroscopic constants,and radiative lifetimes of low-lying states in an SeO molecule |
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| Authors: | Li Ruiab Lian Ke-Yana Li Qi-Nanb Miao Feng-Juanc Yan Binga and Jin Ming-Xing |
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| Affiliation: | [1]Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China; [2]Department of Physics, College of Science, Qiqihar University, Qiqihar 161006, China; [3]College of Communications and Electronics Engineering, Qiqihar University, Qiqihar 161006, China |
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| Abstract: | The low-lying potential energy curves of the SeO molecule are computed by means of an ab initio multireference configuration interaction technique,taking into account relativistic(scalar plus spin-orbit coupling) effects.The spectroscopic constants ofΩstates for X~3∑~-,a~1△,b~1∑~+,A~3Π,A′~3△,and A″~3∑~+ states are obtained,and they are in good accordance with available experimental values.The Franck-Condon factors and transition dipole moments to the ground state are computed,and the natural radiative lifetimes of low-lyingΩstates are theoretically obtained. Comparisons of the natural lifetimes ofΩstates with previous experimental results and those of isovalent TeO molecule are made. |
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| Keywords: | potential energy curves spin-orbit coupling lifetime SeO molecule |
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