HC7O
Hexatriynylformyl, X 2Πr
Species tag 101501
Version1*
Date of EntryAug. 2017
ContributorH. S. P. Müller

The HC7O radical is a linear molecule. Transitions with small quantum numbers were reported by
(1) S. Mohamed, M. C. McCarthy, A. L. Cooksy, C. Hinton, and P. Thaddeus, 2005, J. Chem. Phys. 123, Art. No. 234301.
Some spectroscopic parameters were evaluated from values of C7H.
The predictions of the lower 2Π1/2 spin component should be sufficiently accurate for the detection of the molecule in the cold ISM; caution is advised for predicted frequencies above 125 GHz. Predictions of the higher 2Π3/2 spin component should be viewed with great caution throughout.
An ab initio dipole moment was taken from (1). The value should be viewed with some caution.

Lines Listed1929
Frequency / GHz< 265
Max. J241
log STR0-10.0
log STR1-5.5
Isotope Corr.0.0
Egy / cm–10.0
 µa / D2.17
 µb / D 
 µc / D 
 A / MHz 
 B / MHz549.2054
 C / MHz 
 Q(300.0)86912.8177
 Q(225.0)64207.3025
 Q(150.0)41564.4463
 Q(75.00)19144.4986
 Q(37.50)8339.2643
 Q(18.75)3464.1408
 Q(9.375)1493.3658
 Q(5.000)765.1787
 Q(2.725)417.2258
detected in ISM/CSMtentatively


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