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Chin. Phys. B, 2012, Vol. 21(2): 023301    DOI: 10.1088/1674-1056/21/2/023301
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P-branch emission spectra of the A1$\Pi$–X1Σ+ system of IrN

Fan Qun-Chao(樊群超)a), Sun Wei-Guo(孙卫国)a) b)†, Li Hui-Dong(李会东)b), and Feng Hao(冯灏)a)
a. School of Physics and Chemistry, Research Center for Advanced Computation, Xihua University, Chengdu 610039, China;
b. Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China
Abstract  The P-branch emission spectra of (4,1) and (3,1) bands of the A1$\Pi$-X1Σ+ system of IrN molecule are studied using an analytical formula which is derived from elementary expression of molecular total energy by taking multiple spectral differences. It not only reproduces the known experimental transition lines, but also predicts the unknown spectral lines up to J= 80 for each band by using a group of fifteen known experimental transition lines.
Keywords:  analytical formula      diatomic molecule      IrN      emission spectra  
Received:  28 July 2011      Revised:  16 September 2011      Accepted manuscript online: 
PACS:  33.15.Mt (Rotation, vibration, and vibration-rotation constants)  
  34.50.Ez (Rotational and vibrational energy transfer)  
  33.20.Sn (Rotational analysis)  
  33.20.Wr (Vibronic, rovibronic, and rotation-electron-spin interactions)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11074204), the Science Foundation of the Ministry of Education of China (Grant No. 20100181110085), the Research Fund of Key Disciplines of Atomic and Molecular Physics, and the Fund of Key Laboratory of Advanced Scientific Computation, Xihua University, China.
Corresponding Authors:  Sun Wei-Guo,     E-mail:

Cite this article: 

Fan Qun-Chao(樊群超), Sun Wei-Guo(孙卫国), Li Hui-Dong(李会东), and Feng Hao(冯灏) P-branch emission spectra of the A1$\Pi$–X1Σ+ system of IrN 2012 Chin. Phys. B 21 023301

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