C13C34S
Thioethenylidene, ethenylidenethione, X 3Σ, 34S isotopolog with 13C on C2
Species tag 059522
Version1*
Date of EntryOct. 2025
ContributorH. S. P. Müller

Four low-N (≤ 2), low energy MW transition frequencies are from astronomical observations by
(1) 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 extrapolated from CCS, C13CS, and CC34S, except for B. Transition frequencies with J = N and N – 1 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 Listed218
Frequency / GHz< 200
Max. J15
log STR0-8.5
log STR1-6.0
Isotope Corr. 
Egy / (cm–1)0.0
 µa / D2.88
 µb / D 
 µc / D 
 A / MHz 
 B / MHz6303.22
 C / MHz 
 Q(300.0)5845.5373
 Q(225.0)4357.1777
 Q(150.0)2869.7275
 Q(75.00)1384.7003
 Q(37.50)646.6271
 Q(18.75)285.1183
 Q(9.375)115.8072
 Q(5.000)48.7534
 Q(2.725)22.6163
detected in ISM/CSMyes


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