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Nuclear Quadrupole Coupling Constants of Chlorine and Microwave Spectrum, Structure, and ab Initio Calculation of 1-Chloro-1,1,2-trifluoroethane

✍ Scribed by Bingxin Liu; Yoshio Tatamitani; Jun Shimada; Teruhiko Ogata

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 194 KB
Volume: 211
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.2001.8478

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✦ Synopsis

The microwave spectrum of the 35 Cl and 37 Cl isotopic species of 1-chloro-1,1,2-trifluoroethane (HCFC-133b) has been investigated in the frequency region 10 to 50 GHz using a Stark modulation microwave spectrometer. A pulsed jet Fourier transform microwave spectrometer was also used for the measurement of hyperfine splittings. A least-squares analysis of the observed b-type Q-and R-branch transition frequencies gave rotational and centrifugal distortion constants and components of the chlorine nuclear quadrupole coupling constant tensors in the principal axes system as follows:

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