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The Raman Spectra of CH3CF3 and CCl2CF2

Hatcher, John B. and Yost, Don M. (1937) The Raman Spectra of CH3CF3 and CCl2CF2. Journal of Chemical Physics, 5 (12). pp. 992-993. ISSN 0021-9606. doi:10.1063/1.1749982.

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Because of the interest attached to ethane and ethane-like molecules in connection with the question of free rotation of the CX3 groups with respect to each other, it was considered that the Raman spectrum of CH3CF3 might yield additional information on this point. Inasmuch as the spectrum of the liquid can be conveniently photographed only at low temperatures (b.p. about -40°), the determination of the polarization of the scattered light would be experimentally very difficult and was not attempted. The fact that the frequencies associated with the CF3 group will be considerably different in magnitude from those of the CH3 group may, in the analysis, compensate for the lack of data on polarization. Only the results of the experiments are presented here; the assignment of the frequencies will be given when completed. The Raman spectrum of the ethylene-like molecule CCl2=CF2 was photographed at room temperature with the substance in the liquid state, and the observed shifts are presented here.

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Additional Information:Copyright © 1937 American Institute of Physics. Submitted October 27, 1937. Contribution from the Gates and Crellin Laboratories of Chemistry, California Institute of Technology, No. 630.
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Gates and Crellin Laboratories of Chemistry630
Issue or Number:12
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11865
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Deposited On:07 Oct 2008 23:39
Last Modified:08 Nov 2021 22:22

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