| 光谱学与光谱分析 |
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| Studies on the Q-Branch Spectral Lines of High-Lying Rovibrational Transitions of Diatomic System |
| FU Jia1, SUN Wei-guo2, 3*, LI Hui-dong3, FAN Qun-chao2, ZHANG Yi1, FENG Hao2 |
1. School of Physics, Sichuan University, Chengdu 610065, China
2. Research Center for Advanced Computation, School of Physics and Chemistry, Xihua University, Chengdu 610039, China
3. Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China |
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Abstract An analytical formula was proposed recently to predict the accurate P-branch spectral lines of rovibrational transitions for diatomic systems by taking multiple spectral differences. A similar analytical expression was suggested here to predict the Q-branch spectral lines of rovibrational transitions. This formula was applied to study the high-lying Q-branch emission spectra of the (4,1) and (3,1) bands of the A1Π—X1Σ+ system of IrN molecule using fifteen known accurate experimental transition data. The results show that not only the known experimental transition lines were reproduced but also the correct values of the unknown spectral lines were predicted.
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Received: 2011-07-06
Accepted: 2011-10-28
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Corresponding Authors:
SUN Wei-guo
E-mail: swg@mail.xhu.edu.cn
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