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A priori predictions of the rotational constants for HC13N, HC15N, C5OAb initio molecular orbital theory is used to estimate the rotational constant for several carbon-chain molecules that are candidates for discovery in interstellar space. These estimated rotational constants can be used in laboratory or astronomical searches for the molecules. The rotational constant for HC13N is estimated to be 0.1073 +/- 0.0002 GHz and its dipole moment 5.4 D. The rotational constant for HC15N is estimated to be 0.0724 GHz, with a somewhat larger uncertainty. The rotational constant of C5O is estimated to be 1.360 +/- 2% GHz and its dipole moment 4.4. D.
Document ID
20040089059
Acquisition Source
Ames Research Center
Document Type
Reprint (Version printed in journal)
Authors
DeFrees, D. J.
(Molecular Research Institute Palo Alto, CA 94304, United States)
McLean, A. D.
Date Acquired
August 21, 2013
Publication Date
June 23, 1989
Publication Information
Publication: Chemical physics letters
Volume: 158
Issue: 6
ISSN: 0009-2614
Subject Category
Exobiology
Funding Number(s)
CONTRACT_GRANT: NAG2-16
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Exobiology
Non-NASA Center

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