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Millimeter- and Submillimeter-Wave Spectra of 13CD2F2

✍ Scribed by R. D'Cunha; M.N. Deo; K. Kawaguchi

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 89 KB
Volume: 213
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.2002.8524

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✦ Synopsis

The millimeter-and submillimeter-wave spectrum of 13 CD 2 F 2 present in natural abundance in methylene fluoride-d 2 (CD 2 F 2 ) has been measured in the region 230-380 GHz. The spectrum was recorded using a frequency-modulated millimeter-and submillimeter-wave spectrometer. More than 200 rotational transitions in the ground state of 13 CD 2 F 2 with J ≤ 45 and K a ≤ 8 have been assigned. A combined weighted least squares fit of the newly assigned transitions with previously reported microwave data has been carried out in the Watson's A-and S-reduced Hamiltonian. The data have been fitted with a standard deviation approaching the experimental accuracy, to provide improved values for the rotational and quartic centrifugal distortion constants, including sextic distortion constants for the ground state of 13 CD 2 F 2 .

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