SiC8
Octaheptaenediylidenesilylene, Silanonaoctaenediylidene, 1Σ+
Species tag 124512
Version1*
Date of EntryAug. 2025
ContributorH. S. P. Müller

The lines have been reported by
(1) M. C. McCarthy, A. J. Apponi, C. A. Gottlieb, and P. Thaddeus, 2000, Astrophys. J. 538, 766.
Transition frequencies with uncertainties exceeding 0.1 MHz should be viewed with caution.
The dipole moment has been assumed.

Lines Listed81
Frequency / GHz< 50
Max. J81
log STR0-8.5
log STR1-3.0
Isotope Corr. 
Egy / (cm–1)0.0
 µa / D10.0
 µb / D 
 µc / D 
 A / MHz 
 B / MHz306.261
 C / MHz 
 Q(300.0)20413.9451
 Q(225.0)15309.9791
 Q(150.0)10206.3885
 Q(75.00)5103.1733
 Q(37.50)2551.7064
 Q(18.75)1276.0082
 Q(9.375)638.1679
 Q(5.000)340.5112
 Q(2.725)185.7303
detected in ISM/CSMno


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