The infrared spectrum of HCFC-142b, CH3CF2Cl, has been recorded at hig
h and low resolution using a supersonic jet-FTIR spectrometer system.
Molecular parameters for a number of vibrational states have been obta
ined from rovibrational analyses of the C-type bands nu(14) (1192 cm(-
1)) and nu(15) (967 cm(-1)), the A-type band nu(7) (905 cm(-1)), and t
he B-type bands nu(5) (1234 cm(-1)) and nu(7) + nu(11) (1215 cm(-1)).
A rotational temperature of ca. 50 K in the jet expansion has been est
imated from a comparison of the experimental spectrum with band simula
tions calculated using the resultant molecular constants. (C) 1997 Aca
demic Press.