Theoretical study of potential energy curves,spectroscopic constants,and radiative lifetimes of low-lying states in SeO molecule |
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| Affiliation: | a Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;b Department of Physics, College of Science, Qiqihar University, Qiqihar 161006, China;c College of Communications and Electronics Engineering, Qiqihar University, Qiqihar 161006, China |
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| Abstract: | The low-lying potential energy curves of SeO molecule are computed by means of ab initio multireference configuration interaction technique, taking into account relativistic (scalar plus spin-orbit coupling) effects. The spectroscopic constants of Ω states for X3Σ-, a1Δ, b1Σ+, A3Π, A'3Δ, and A"3Σ+ 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-lying Ω states are theoretically obtained. Comparisons of the natural lifetimes of Ω states 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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