CC33S
Thioethenylidene, ethenylidenethione, X 3Σ, 33S isotopolog
Species tag 057524
Version1*
Date of EntryOct. 2025
ContributorH. S. P. Müller

Nine very accurate low-N (≤ 2), low energy MW transition frequencies are from
(2) R. Fuentetaja, C. Cabezas, Y. Endo, M. Agúndez, A. Godard Palluet, F. Lique, B. Tercero, N. Marcelino, P. de Vicente, and J. Cernicharo, 2025, Astron. Astrophys. 702, Art. No. A23.
Spectroscopic parameter were interpolated from CCS and CC34S, except for B and the 33S hyperfine structure parameters. Transition frequencies with calculated uncertainties exceeding 0.1 MHz should be viewed with great caution, higher-N transitions with some additional caution.
The dipole moment is assumed to agree with that of the main isotopolog, see e056002.cat.

Lines Listed436
Frequency / GHz< 200
Max. J15
log STR0-9.0
log STR1-6.0
Isotope Corr. 
Egy / (cm–1)0.0
 µa / D2.88
 µb / D 
 µc / D 
 A / MHz 
 B / MHz6404.684
 C / MHz 
 Q(300.0)11506.3731
 Q(225.0)8576.8071
 Q(150.0)5649.0285
 Q(75.00)2726.0075
 Q(37.50)1273.2115
 Q(18.75)561.5875
 Q(9.375)228.2392
 Q(5.000)96.1614
 Q(2.725)44.6401
detected in ISM/CSMyes


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