ND
Imidogen, azanydene, X 3Σ, deuterated isotopolog
Species tag 016502
Version1
Date of EntryFeb. 2004
ContributorH. S. P. Müller

The observed transitions were taken from
(1) S. Saito and M. Goto, 1993, Astrophys. J. 410, L53
; and from
(2) S. Takano, T. Klaus, and G. Winnewisser, 1998, J. Mol. Spectrosc. 192, 309
.
Some of the lines omitted from the fits in (1) and (2) are included in the present calculation. Uncertainties of several lines from (1) have been raised, in particular those of closely spaced lines. Conversely, some uncertainties from (2) have been lowered. The sextic distortion constant H was estimated. Predictions to higher values of N should be viewed with caution.
The dipole moment was taken from the main isotopomer published in
(3) E. A. Scarl and F. W. Dalby, 1974, Can. J. Phys. 52, 1429
.

Lines Listed2020
Frequency / GHz< 8670
Max. J17
log STR0-7.5
log STR1-7.0
Isotope Corr.-3.941
Egy / cm-10.0
 µa / D1.389
 µb / D 
 µc / D 
 A / MHz 
 B / MHz263265.5
 C / MHz 
 Q(300.0)651.8212
 Q(225.0)490.8311
 Q(150.0)330.0825
 Q(75.00)169.6596
 Q(37.50)89.7929
 Q(18.75)50.4773
 Q(9.375)32.5167
 Q(5.000)27.5112
 Q(2.725)26.9872
detected in ISM/CSMyes


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