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The data have been summarized in
(1) T. Amano,
2010, J. Mol. Spectrosc. 259, 16.
New measurements between 358 and 505 GHz
were published in that work.
Included were additional data already used in the
July 2008 entry from
(2) P. Thaddeus, C. A. Gottlieb, H. Gupta, S. Brünken,
M. C. McCarthy, M. Agúndez, M. Guélin, and
J. Cernicharo,
2008, Astrophys. J. 677, 1132;
and from
(3) M. C. McCarthy and P. Thaddeus,
2008, J. Chem. Phys. 129, Art. No. 054314.
Note: the reported uncertainties were generally slightly
optimistic. Uncertainties were multiplied by 1.5
for data in (1) (mostly to 15 kHz) while
those in (2) were increased from 15 to 25 kHz.
The J" = F" = 2
line from (3) was omitted from the final line list.
Predictions are probably reliable throughout.
The 14N hyperfine splitting can be resolved for
low values of J. Therefore, a separate
hyperfine calculation is provided up to J" = 4.
While the general entries do NOT include hyperfine effects,
the spin multiplicity gI of 3 for the
14N nucleus is included in the partition function
as well as in the upper state degeneracy gup.
The dipole moment was calculated in (2)
and references therein.
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