LiCCH
Lithium acetylide, X 1Σ+
Species tag 032512
Version1*
Date of EntryOct. 2011
ContributorH. S. P. Müller

Lines without 7Li hyperfine splitting were reported by
(1) A. J. Apponi, M. A. Brewster, and L. M. Ziurys, 1998, Chem. Phys. Lett. 298, 161.
Lines with hyperfine splitting were reported by
(2) P. M. Sheridan, M. K. L. Binns, M. Sun, J. Min, M. P. Bucchino, D. T. Halfen, L. M. Ziurys, 2011, J. Mol. Spectrosc. 269, 231.
The stated uncertainties in (1, 2) appear to be too conservative; smaller values have been employed here. Predictions may be reliable up to 900 GHz. Hyperfine splitting is deemed to be irrelevant for astronomical observations.
The dipole moment is from an ab initio calculation by
(3) H. S. P. Müller, 2011, unpublished.
Lines Listed68
Frequency / GHz< 1420
Max. J68
log STR0-4.0
log STR1-3.0
Isotope Corr.-0.0436
Egy / cm–10.0
 µa / D6.02
 µb / D 
 µc / D 
 A / MHz 
 B / MHz10544.09
 C / MHz 
 Q(300.0)593.9320
 Q(225.0)445.3908
 Q(150.0)296.9437
 Q(75.00)148.5915
 Q(37.50)74.4512
 Q(18.75)37.3907
 Q(9.375)18.8640
detected in ISM/CSMno

Database maintained by Holger S. P. Müller and Sven Thorwirth, programming by D. Roth and F. Schlöder