HC13CCHO
Propynal, 13C on C2
Species tag 055518
Version1*
Date of EntryMar. 2018
ContributorH. S. P. Müller

The microwave frequencies have been reported by
(1) C. C. Costain and R. J. Morton, 1959, J. Chem. Phys. 31, 389.
Because of the very limited experimental data set, calculations were limited to J ≤ 5, and a-type transitions only. The entry may be sufficient for identifying the isotopolog in dark clouds. Predictions should be viewed with caution.
The dipole moment was assumed to agree with that of the main species, see e054510.cat.

Lines Listed29
Frequency / GHz< 48
Max. J5
log STR0-9.0
log STR1-5.5
Isotope Corr.-1.966
Egy / (cm–1)0.0
 µa / D2.359
 µb / D1.468
 µc / D 
 A / MHz~67964.7
 B / MHz4802.7
 C / MHz4478.9
 Q(300.0)23113.3993
 Q(225.0)14982.2063
 Q(150.0)8139.1601
 Q(75.00)2872.7816
 Q(37.50)1015.5467
 Q(18.75)359.5417
 Q(9.375)127.5711
 Q(5.000)50.0175
 Q(2.725)20.3790
detected in ISM/CSMno


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