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Shaoqing Jin, Meiling Guo, Fengtao Fan, Jingxiu Yang, Ying Zhang, Baokun Huang, Zhaochi Feng and Can Li Deep UV resonance Raman spectroscopic study of CnF2n+2 molecules: the excitation of C–C σ bond Journal of Raman Spectroscopy 44

Version of Record online: 26 OCT 2012 | DOI: 10.1002/jrs.4188

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The σ–σ* transition of C–C bond in CnF2n+2 molecules was studied by deep UV resonance Raman spectroscopy. The C–C σ bond is selectively excited by the deep UV laser at 177.3 nm, and the resonance Raman spectra of CnF2n+2 molecules were obtained on our home-assembled deep UV Raman spectrograph. The Raman bands at 1298, 1380 and 2584 cm−1 due to the C–C skeletal stretching modes are evidently enhanced owing to the resonance Raman effect. Based on the resonance Raman spectra and theoretical calculation results, the electronic geometry of CnF2n+2 molecules at the σσ* excited state was proposed.

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