INFRARED AND RAMAN VIBRATIONAL STUDY OF ETHYLBENZENE, N-PROPYLBENZENE AND TERMINAL HALOGEN-SUBSTITUTED ANALOGS, 800-50/CM.
Abstract
The infrared and Raman spectra of C6H5-(CH2)n-X, where X = H, Cl, Br, I when n = 2 and X = H, Cl, Br when n = 3, were studied in the liquid state from 800-50/cm. An attempt was made to assign the vibrations of the monosubstituted benzene ring, the far infrared deformational vibrations, and the structure-dependent halogen stretching vibrations. In the (2-haloethyl)-benzenes, two bands are assigned to the carbon-halogen vibrations, one for each isomeric form and it is concluded that the trans conformer is more stable than the gauche. In the (3-halo-propyl)-benzenes, three bands are assigned to the carbon-halogen vibrations. The identity of these conformations is discussed using the nomenclature of Shimanouchi and Mizushima. Low temperature spectra were obtained in the 800-400/cm region in the infrared and depolarization ratios were measured in the Raman bands. It was found necessary to revise the previous vibrational assignments of ethylbenzene and propose an assignment for n-propylbenzene in the region below 800/cm. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1968
- Accession Number
- AD0668478
Entities
People
- James E. Saunders
Organizations
- University of Dayton