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Diode–Laser Jet Spectra and Analysis of the ν1 and ν4 Fundamentals of CCl3F

✍ Scribed by Marcel Snels; Giuseppe D'Amico; Luca Piccarreta; Hans Hollenstein; Martin Quack

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
190 KB
Volume
205
Category
Article
ISSN
0022-2852

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✦ Synopsis

High-resolution infrared spectra have been measured for mixtures of CCl 3 F in Ne, expanded in a supersonic planar jet. We present the first analysis for the 4 fundamental and a complete analysis for the 1 band. Accurate spectroscopic constants have been obtained for both the 1 fundamental of the most abundant isotopic species, C 35 Cl 3 F, C 35 Cl 2 37 ClF, and C 35 Cl 37 Cl 2 F. With respect to an earlier work [M. Snels, A. Beil, H. Hollenstein, M. Quack, U. Schmidt, and F. D'Amato, J. Chem. Phys. 103, 8846 -8853 (1995)], the observation of Q branches of the three most abundant isotopomers allowed for an unambiguous determination of the 1 band origins. The 4 fundamental has not been the subject of a high-resolution analysis up to now. The observation of high-resolution spectra of the central part of the band permitted the determination of band origin, rotational constants, and Coriolis constant for the symmetric-top species, C 35 Cl 3 F.

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