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Microwave spectrum of propionitrile:Determination of the quartic and sextic centrifugal distortion constants

Authors
Journal
Journal of Molecular Spectroscopy
0022-2852
Publisher
Elsevier
Publication Date
Volume
72
Issue
2
Identifiers
DOI: 10.1016/0022-2852(78)90127-3

Abstract

Abstract The ground state rotational spectrum of propionitrile has been reinvestigated between 8 and 250 GHz. A total of 218 transitions with J ≤ 48 and K ≤ 21 have been assigned. These data have been analyzed in terms of a reduced Hamiltonian similar to, but different from that proposed by Watson. All the determinable constants up to the sextic terms have been significantly determined. The rotational constants are (in MHz): A ′ = 27 663.683, B ′ = 4714.187 8, and C ′ = 4235.085.2

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