Journalartikel

Jahr der Veröffentlichung: 1995

Seiten: 463-476

Zeitschrift: Journal of Molecular Spectroscopy

Bandnummer: 173

Heftnummer: 2

ISSN: 0022-2852

DOI Link: https://doi.org/10.1006/jmsp.1995.1249

Verlag: Elsevier

Abstract: 
The spectrum of chlorodifluoromethane (CFC-22) has been investigated in the infrared region. Spectra of CHF2Cl were recorded at room temperature with high resolution (0.0017 cm(-1), Bruker IFS 120 HR) in the region between 335 and 450 cm(-1). The spectral analysis of (CHF2Cl)-Cl-35 (isotopically pure sample) allowed us to assign more than 5500 lines (J less than or equal to 76) to the nu(9) b-type band (nu(0) = 366.1972 cm(-1)) and more than 6100 lines (J less than or equal to 74) to the nu(6) a/c-hybrid band (nu(0) = 412.9286 cm(-1)). These two bands interact through both c-type and a-type Coriolis couplings. The addition of microwave and millimeter-wave data (see accompanying paper by Z. Kisiel, I,, Pszczolkowski, G. Cazzoli, and G. Cotti, J. Mel. Spectrosc. 173, 477-487, 1995) to these IR transitions allowed a global fit to be performed. The resulting molecular parameters are much better defined than when each type of transition is fitted separately, It was also found, by simulating the spectrum, that the dipole moment ratio between the a and c components of nu(6) is about 1.5 and the corresponding ratio of nu(9) and nu(6a) is about 2. Moreover, results will be given concerning (CHF2Cl)-Cl-37, obtained from a natural abundance sample as well as approximate bandcenters for several hot bands, which were not analyzed in detail. (C) 1995 Academic Press, Inc.

Harvard-Zitierstil: MERKE, I., GRANER, G., KLEE, S., MELLAU, G. and POLANZ, O. (1995) HIGH-RESOLUTION FT-IR SPECTRA OF CHF2CL IN THE REGION BETWEEN 335-CM(-1) AND 450-CM(-1), Journal of Molecular Spectroscopy, 173(2), pp. 463-476. https://doi.org/10.1006/jmsp.1995.1249

APA-Zitierstil: MERKE, I., GRANER, G., KLEE, S., MELLAU, G., & POLANZ, O. (1995). HIGH-RESOLUTION FT-IR SPECTRA OF CHF2CL IN THE REGION BETWEEN 335-CM(-1) AND 450-CM(-1). Journal of Molecular Spectroscopy. 173(2), 463-476. https://doi.org/10.1006/jmsp.1995.1249