N2H+, v2 = 1
Diazenylium, v2 = 1
Species tag 029509
Date of EntryFeb. 2006
ContributorH. S. P. Müller

The laboratory data was taken from
(1) T. Amano, T. Hirao, and J. Takano, 2005, J. Mol. Spectrosc. 234, 170.
In order to extrapolate more reliably to higher values of J, a value for the sextic distortion parameter H was derived from HCN, v2 = 1, see e027503.cat. The predictions are assumed to be reliable to at least 1.2 THz.
Note: The partition function takes into account the 14N hyperfine splitting considered in the predictions for the ground vibrational state as well as contributions from the vibrational ground state ! Individual non-zero contributions are given in parentheses.
The dipole moment was assumed to be identical to that of the ground vibrational state, see e029506.cat.

Lines Listed112
Frequency / GHz< 3906
Max. J42
log STR0-8.3
log STR1-7.0
Isotope Corr.-0.0
Egy / (cm–1)685.25
 µa / D3.40
 µb / D 
 µc / D 
 Q(500.0)2575.2763 (2017.3880, 557.8883)
 Q(300.0)1300.9224 (1211.2265, 89.6959)
 Q(225.0)931.5116 (909.0575, 22.4541)
 Q(150.0)608.6347 (606.9667, 1.6680)
 Q(75.00)304.9598 (304.9586, 0.0012)
detected in ISM/CSMno

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