H13CC4N
Cyanodiacetylene, Pentadiynenitrile, 13 on C5
Species tag 076507
Version1
Date of EntryOct. 2004
ContributorH. S. P. Müller

Frequencies without hyperfine splitting have been reported in
(1) A. J. Alexander, H. W. Kroto, and D. R. M. Walton, 1976, J. Mol. Spectrosc. 62, 175 and in
(2) L. Bizzocchi, C. Degli Esposti, and P. Botschwina, 2004, J. Mol. Spectrosc. 225, 145.
Transitions involving 14N hyperfine splitting were reported in
(3) M. E. Sanz, M. C. McCarthy, and P. Thaddeus, 2005, J. Chem. Phys. 122, Art. No. 194319.
14N hyperfine splitting may be resolved at low values of J. However, even at low temperatures these transitions are expected to be too weak. The partion function does not take into account hyperfine splitting and no vibrational contributions !
The dipole moment was assumed to be the same as that of the main species, see e075503.cat.

Lines Listed99
Frequency / GHz< 257
Max. J99
log STR0-7.0
log STR1-4.0
Isotope Corr.-1.991
Egy / cm-10.0
 µa / D4.33
 µb / D 
 µc / D 
 A / MHz 
 B / MHz1296.6762
 C / MHz 
 Q(500.0)8037.7780
 Q(300.0)4822.1198
 Q(225.0)3616.4818
 Q(150.0)2410.9714
 Q(75.00)1205.5886
 Q(37.50)602.9451
 Q(18.75)301.6354
 Q(9.375)150.9837
detected in ISM/CSMyes


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