HC11N
Cyanodecapentayne, Cyanopentaacetylene
Species tag 147501
Version1
Date of EntryOct. 2004
ContributorH. S. P. Müller

The experimental lines are from
(1) M. J. Travers, M. C. McCarthy, P. Kalmus, C. A. Gottlieb, and P. Thaddeus, 1996, Astrophys. J. 469, L65.
Values for the partition function were extrapolated for T ≥ 225 K. The 14N hyperfine splitting was not considered because it was not resolved in the laboratory, and it is unlikely to be resolved in the ISM.
The dipole moment is from an ab initio calculation from
(2) P. Botschwina, unpublished;
cited in
(3) M. B. Bell et al.; 1997, Astrophys. J. 483, L61.
The input, and hence the predicted frequencies and uncertainties, are identical to those in the JPL catalog entry created by the same author.

Lines Listed150
Frequency / GHz< 51
Max. J150
log STR0-10.0
log STR1-3.5
Isotope Corr.-0.053
Egy / cm-10.0
 µa / D5.47
 µb / D 
 µc / D 
 A / MHz 
 B / MHz169.063
 C / MHz 
 Q(300.0)36976.8168
 Q(225.0)27732.6126
 Q(150.0)18488.4084
 Q(75.00)9244.1341
 Q(37.50)4622.1729
 Q(18.75)2311.2379
 Q(9.375)1155.7819
detected in ISM/CSMapparently again


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