The vibrational spectra of 1,1,4,4-tetrafluoro- and 1,1,4,4-tetrachlorobutadiene |
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Authors: | Foil A Miller William F Elbert William Pingitore |
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Institution: | Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260 U.S.A. |
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Abstract: | Raman data are reported for gas, liquid and solid 1,1,4,4-tetrafluorobutadiene, F2CCHCHCF2, and IR data for gas and solid. The molecule has a planar trans conformation of C2h symmetry. With the aid of Raman depolarization ratios and IR band contours, twenty of the twenty-four spectroscopically-active fundamentals can be assigned with assurance. Frequencies are suggested for the remaining four modes.Raman and IR data are reported for the liquid and solid 1,1,4,4-tetrachlorobutadiene. Mid-IR gas phase data are also reported. Again the data can be satisfactorily explained under C2h symmetry. Fourteen fundamentals can be assigned with confidence. Suggestions have been made for the frequencies of nine other fundamentals. |
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