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Infrared Band Contours and PR Separations of Fluorinated Aromatics: 1,4-Difluorobenzene

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The vapor phase ir spectrum of 1,4-difluorobenzene has been recorded on a Perkin–Elmer 521 spectrophotometer equipped with a 10 m variable path multiple reflection cell. The band contours have been critically studied and the PR separations of typical A-, B-, and C-type bands are reported along with the relative intensity of Q branch with respect to that of the whole band for a few typical A- and C-type contours. The observed values are compared with those computed from rotational constants using the existing semiempirical theory.

Keywords: 1,4-Difluorobenzene; Band contour analysis; Fluorinated aromatics; Vapor phase ir spectra

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370271779950058

Affiliations: 1: Department of Physics, Indian Institute of Technology, Kanpur, India 2: Department of Physics, Indian Institute of Technology, Kanpur, India; Department of Physics, H.B. Technological Institute, Kanpur, India

Publication date: July 1, 1971

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