VIBRATIONAL SPECTRA OF 1,1,2,2-TETRABROMOCYCLOPROPANE
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Date
1978
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Publisher
Ohio State University
Abstract
Liquid and solid phase infrared and Raman spectra of the novel compound, 1,1,2,2-tetrabromocyclopropane (TBCP) have been recorded for the first time and interpreted in detail. Based on the spectroscopic information, such as Raman depolarization ratios, the $C_{2v}$ symmetry of this molecule has been confirmed. The assignments of the 21 normal vibrations of TBCP have established both ring and methylene cyclopropane group frequencies. A comparison of the spectral results for TBCP and the similar molecule, 1,1,2,2-tetrachlorocyclopropane (TCCP) has shown excellent correlation in frequencies due to similar vibrations. No such correlation has been observed for 1,1,2,2-tetrafluorocyclopropane undoubtedly due to the strong vibrational coupling in this latter molecule.
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Author Institution: Department of Chemistry, University of Missouri