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物理学报. 2009, 58(5): 3538-3542.
doi: 10.7498/aps.58.3538.
CS2在Ｃ6H6中的弱费米共振特性及对Bertran公式修正
- 收稿日期: 2008-07-24
- 修回日期: 2008-11-24
- 刊出日期: 2009-05-20
English Abstract
Amendment to bertran equation and the weak Fermi resonance characteristic of CS2 in C6H6
- Received Date:
24 July 2008
- Accepted Date:
24 November 2008
- Published Online:
20 May 2009
Abstract: The Raman spectra of CS2 in C6H6 is messured and the Fermi resonance of v1—2v2 in solution and in pure CS2 is obvionsly different.The characteristic parameters are calculated by Berttern equation.It was found that with the concentration of CS2 declining,the ratio of the spectral intensity （R=Ｉ655/I796） decreases and the coupling coefficient （Ｗ） raises, and the other parameters also change correspondingly. The analysis shows that dissipation coefficient of v01 of CS2 is affected by the concentration of C6H6. Asymmetric frequency shift of v01 and 2v02 are observed in experiment,which is explained by amending the Bertran theory. This report has reference value for the molecule spectrum certification and the understanding and use of Fermi resonance theory.
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Keywords:
- Raman spectrum /
- Fermi resonance /
- solvent effect /
- carbon disulfide
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