Abstract
view Abstract Citations (35) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Microwave Spectrum of Propionitrile (C 2H 5CN) in the Frequency Range from 8 to 200 GHz Fukuyama, Yoshimitsu ; Odashima, Hitoshi ; Takagi, Kojiro ; Tsunekawa, Shozo Abstract The rotational spectrum of propionitrile (C2H5CN) has been measured in the frequency range from 8 to 200 GHz, where 1461 transitions with J ≤ 70 and Ka ≤ 21 in the ground vibrational state have been newly assigned. A total of 2418 transitions including the 957 transitions measured previously below 610 GHz have been analyzed on the basis of a Watson A-reduced Hamiltonian. A complete set of quartic and sextic distortion constants and five octic distortion constants have been obtained with a good accuracy. In addition, newly assigned Ka b-type transitions have enabled us to determine an octic distortion constant LK for the first time. The determined molecular constants can predict more precisely the frequencies of b-type transitions. These calculated frequencies will be useful in assigning interstellar spectral lines to be detected by radio telescopes. Publication: The Astrophysical Journal Supplement Series Pub Date: June 1996 DOI: 10.1086/192303 Bibcode: 1996ApJS..104..329F Keywords: LINE: IDENTIFICATION; MOLECULAR DATA full text sources ADS |
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