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Infrared Band Contours and PR Separations of Fluorinated Aromatics: 1,4-Difluorobenzene
Volume 25, Number 4 (Aug. 1971) Page 442-448
Rai, M.M.; Bist, H.D.; Khandelwal, D.P.
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.