H13CN, v2 = 2
Hydrogen Cyanide, 13C isotopic species, v2 = 2
Species tag 028520
Date of EntryNov 2014
ContributorH. S. P. Müller

Rovibrational and, as far as published, rotational data involving states v2 = 0 to 3 as well as v3 = 1 and v1 = 1 were used in the fit.
Data for v = 0 and v2 = 1, including direct-l-type transitions up to J = 35 for v2 = 1, were reported in
(1) U. Fuchs, S. Brünken, G. W. Fuchs, S. Thorwirth, V. Ahrens, F. Lewen, S. Urban, T. Giesen, and G. Winnewisser, 2004, Z. Naturforsch. 59a, 861.
Additional v = 0 data come from
(2) G. Cazzoli and C. Puzzarini, 2005, J. Mol. Spectrosc. 233, 280;
and from
(3) F. Maiwald, F. Lewen, V. Ahrens, M. Beaky, R. Gendriesch, A. N. Koroliev, A. A. Negirev, D. G. Paveljev, B. Vohwinkel, and G. Winnewisser 2000, J. Mol. Spectrosc. 202, 166.
Further direct-l-type transitions 6 ≤ J ≤ 15 were published in
(4) M. Winnewisser and J. Vogt, 1978, Z. Naturforsch. 33a, 1323.
The 2nd entry also employs v2 = 2 and 3 rotational data from
(5) J. Preusser and A. G. Maki, 1993, J. Mol. Spectrosc. 162, 484.
The fit also takes into account the very extensive infrared data between the various vibrational states from
(6) A. G. Maki, G. C. Mellau, S. Klee, M. Winnewisser, and W. Quapp, 2000, J. Mol. Spectrosc. 202, 67.
The partition function is essentially converged at 300 K and probably still good up to about 500 K. The rotational part is well converged up to 1000 K. Predictions with calculated uncertainties exceeding 5 MHz should be viewed with some caution. Intensities of transitions with Δl = ±2 should be viewed with caution.
The dipole moment was assumed to be the same as for the main isotopic species; see e027507.cat.
Note: the spin multiplicity gI of 3 for the 14N nucleus has been considered in the calculation of the partition function and the upper state degeneracy gup.
The partition function takes into account all vibrational states used in the fit.

Lines Listed531
Frequency / GHz< 8138
Max. J83
log STR0-23.0
log STR1-23.0
Isotope Corr.-1.955
Egy / (cm–1)1399.76
 µa / D2.8989
 µb / D 
 µc / D 
detected in ISM/CSMyes

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