Accession Number : AD0785359

Title :   The Vibrational Spectra and Structures of Organic Acids and Their Derivatives. Volume II. Benzoyl Chloride, Benzoyl Bromide and Methyl Chloroformate.

Descriptive Note : Interim technical rept. 1 Jan 72-1 Jan 74,


Personal Author(s) : Katon,J. E. ; Condit,D. A. ; Griffin,M. G.

Report Date : MAY 1974

Pagination or Media Count : 48

Abstract : The infrared and Raman spectra of benzoyl chloride, benzoyl chloride-d5 and benzoyl bromide have been measured between 75-4000/cm. Assignments for the fundamental modes of vibration are presented. In addition, the infrared spectra of methyl chloro-formate and methyl chloroformate-d3 are reported. It is found that the two compounds readily crystallize as oriented polycrystalline films when cooled in contact with cesium iodide windows. The polarized infrared spectra obtained with these films makes possible an improved vibrational assignment for the light compound and a good first assignment for the deuterium substituted analogue. The results are most consistent with a planar cis structure and there is no indication of the existence of a second conformer. No clear cases of crystal splitting are observed. (Author)

Descriptors :   *Infrared spectra, *Raman spectra, Organic acids, Molecular structure, Molecular vibration, Spectrum analysis, Benzoic acids, Formates

Subject Categories : Organic Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE