D2S
Hydrogen sulfide, doubly-deuterated species
Species tag 036503
Version1*
Date of EntryOct. 2008
ContributorH. S. P. Müller

The experimental lines are from
(1) F. C. De Lucia and J. W. Cederberg, 1971, J. Mol. Spectrosc. 40, 52,
and from
(2) R. L. Cook, F. C. De Lucia, and P. Helminger, 1972, J. Mol. Spectrosc. 41, 123.
The latter work also contains some data from
(3) C. A. Burrus, unpublished.
Also included in the fit are far-infrared transitions from
(4) C. Camy-Peyret, J.-M. Flaud, L. Lechuga-Fossat, and J. W. C. Johns, 1985, J. Mol. Spectrosc. 109, 300;
and one TuFIR transition from
(5) R. Gendriesch, unpublished.
Transition frequencies from (1) and (2) have been merged. The predictions should be reliable as long as the uncertainties do not exceed 5 MHz by far.
At low temperatures, it may be necessary to discern between ortho-D2S and para-D2S. The ortho and para states are described by Ka + Kc being even and odd, respectively. The nuclear spin-weights are 2 and 1 for ortho-D2S and para-D2S, respectively. The JKaKc = 101 is the lowest para state. It is 6.9561 cm–1 above ground. Aug. 2011: separate para and ortho predictions are available along with separate para and ortho partition function values. Note: the spin-weight of 2 for the separate ortho predictions has been eliminated.
The dipole moment is from
(6) R. Viswanathan and T. R. Dyke, 1984, J. Mol. Spectrosc. 103, 231.

Lines Listed1107
Frequency / GHz< 6939
Max. J26
log STR0-5.7
log STR1-5.7
Isotope Corr.-7.638
Egy / (cm–1)0.0
 µa / D 
 µb / D0.9773
 µc / D 
 A / MHz164656.48
 B / MHz135277.07
 C / MHz73266.50
 Q(300.0)1038.2400
 Q(225.0)674.3626
 Q(150.0)367.5308
 Q(75.00)130.7889
 Q(37.50)46.9505
 Q(18.75)17.1509
 Q(9.375)6.6265
 Q(5.000)3.2480
 Q(2.725)2.1828
detected in ISM/CSMyes


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