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Chin. Phys. B, 2012, Vol. 21(10): 103301    DOI: 10.1088/1674-1056/21/10/103301
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Vibrational spectra and intramolecular vibrational redistribution in methane and its isotopomers

Hou Xi-Wena, Wan Ming-Fangb, Ma Zhong-Qic
a Department of Physics, Huazhong Normal University, Wuhan 430079, China;
b School of Natural Science, Wuhan University of Technology, Wuhan 430079, China;
c Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Abstract  An improved U(2) algebraic model is introduced to study the stretching and bending vibrational spectra of methane and its isotopomers. The algebraic model with fewer parameters reproduces the experimental spectra with good precision. Moreover, the obtained parameters describe well the correct behavior of isotopic substitution. It is shown that the Fermi resonance leads to a very fast intramolecular vibrational redistribution among stretches and bends.
Keywords:  algebraic methods      vibrational spectra      intramolecular vibrational redistribution     
Received:  24 January 2012      Published:  01 September 2012
PACS:  33.20.Tp (Vibrational analysis)  
  34.30.+h  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11174099).
Corresponding Authors:  Hou Xi-Wen     E-mail:  xwhou@phy.ccnu.edu.cn

Cite this article: 

Hou Xi-Wen, Wan Ming-Fang, Ma Zhong-Qi Vibrational spectra and intramolecular vibrational redistribution in methane and its isotopomers 2012 Chin. Phys. B 21 103301

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