Sodium carbide, X 4Σ
Species tag 035501
Date of EntryFeb. 2006
ContributorH. S. P. Müller

The lines have been reported by
(1) P. M. Sheridan, J. Xin, L. M. Ziurys, S. A. Beaton, S. M. Kermode, and J. M. Brown, 2002, J. Chem. Phys. 116, 5544.
The observed transitions cover N between 8 and 21. Extrapolations to much lower or higher quantum numbers should be taken with some care. Furthermore, for low N transitions the 23Na hyperfine splitting may be resolvable.
With respect to the Oct. 2002 entry, an ab initio dipole moment was used in the predictions. It was reported in
(2) S. Midda and A. K. Das, 2004, J. Mol. Spectrosc. 224, 1.
The version number has been retained.

Lines Listed225
Frequency / GHz< 1311
Max. J52
log STR0-4.7
log STR1-2.5
Isotope Corr.-0.0
Egy / cm–10.0
 µa / D7.38
 µb / D 
 µc / D 
 A / MHz 
 B / MHz12863.14
 C / MHz 
detected in ISM/CSMno

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