Abstract

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 <i>PR</i> separations of typical <i>A</i>-, <i>B</i>-, and <i>C</i>-type bands are reported along with the relative intensity of <i>Q</i> branch with respect to that of the whole band for a few typical <i>A</i>- and <i>C</i>-type contours. The observed values are compared with those computed from rotational constants using the existing semiempirical theory.

Calibration of far-infrared spectrometers in the 100–200-cm⁻¹ region with the ν₅–ν₄ band of acetylene

Doris B. Braund and A. R. H. Cole
Appl. Opt. 15(2) 419-422 (1976)

Infrared absorption coefficient of H₂SO₄ vapor from 1190 to 1260 cm⁻¹

Richard F. Majkowski
J. Opt. Soc. Am. 67(5) 624-627 (1977)

Infrared laser spectroscopy of jet-cooled butadiene iron tricarbonyl

Jun Gang, Mark Pennington, Douglas K. Russell, Francisco J. Basterrechea, Paul B. Davies, and Graeme M. Hansford
J. Opt. Soc. Am. B 11(1) 184-190 (1994)

Infrared absorption bands of α- and β-pinenes in the 8–14-μm atmospheric window region

H. William Wilson
Appl. Opt. 18(20) 3434-3437 (1979)

Infrared Spectrum of Dideuteroacetylene (C₂D₂)

Eugene D. Tidwell and Earle K. Plyler
J. Opt. Soc. Am. 52(6) 656-664 (1962)