✦ LIBER ✦

Fourier Transform Microwave Spectroscopy of13C-Substituted CCS Radicals

✍ Scribed by Masafumi Ikeda; Yutaro Sekimoto; Satoshi Yamamoto

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 175 KB
Volume: 185
Category: Article
ISSN: 0022-2852
DOI: 10.1006/jmsp.1997.7352

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✦ Synopsis

The rotational spectral lines of the 13 C isotopic species of CCS ( 13 CCS, C 13 CS, and 13 C 13 CS) have been observed using a Fourier transform microwave spectrometer in combination with a pulsed-discharge nozzle. The hyperfineresolved J N Å 1 0 -0 1 , J N Å 2 1 -1 0 , and J N Å 3 2 -2 1 transitions have been observed in the 11-, 22-, and 33-GHz regions, respectively, with an accuracy of about 5 kHz. The observed transition frequencies for 13 CCS and C 13 CS are analyzed simultaneously with millimeter-wave data, and the hyperfine interaction constants for both species are determined accurately. Astronomical implications for these radicals are discussed.

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