C313CC2H
Hexatriynyl, X 2Πi, 13C on C4
Species tag 074509
Version1*
Date of EntryDec. 2005
ContributorH. S. P. Müller
M. C. McCarthy

The lines have been reported by
(1) M. C. McCarthy, and P. Thaddeus, 2005, J. Chem. Phys. 122, Art. No. 174308. The fit has been carried out using constants and quantum numbers of Hund's case (b). Slightly more centrifugal distortion terms compared to those of (1) were used in the fit as fixed parameters, see (1) and the C6H entry, tag 073501.
The present data set comprises only of a small number of transitions partaining to the 2Π3/2 spin-substate. Therefore, predictions above 100 GHz should be viewed with great caution. Moreover, predictions for the 2Π1/2 spin-substate (J + 1/2 = N) are unreliable.
The 1H and 13C hyperfine may be resolvable at low frequencies. The predictions consider both.
The dipole moment is assumed to agree with that of the main isotopic species, see e073501.cat.

Lines Listed1575
Frequency / GHz< 276
Max. J99
log STR0-9.0
log STR1-4.0
Isotope Corr.-1.994
Egy / (cm–1)0.0
 µa / D5.54
 µb / D 
 µc / D 
 A 
 B1389.98
 C 
 Q(300.0)69438.5620
 Q(225.0)51472.9895
 Q(150.0)33538.7830
 Q(75.00)15715.3449
 Q(37.50)7012.5273
 Q(18.75)2960.0088
 Q(9.375)1248.8185
detected in ISM/CSMno


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