Extensive mmw and sub-mmW data were published by
(1) Y. Motoki, Y. Tsunoda, H. Ozeki, and K. Kobayashi, 2013, Astrophys. J. Suppl. Ser., 209, Art. No. 23.
Additional transition frequencies were taken from
(2) H. M. Pickett 1973, J. Mol. Spectrosc., 46, 335.
Data from
(3) J. N. MacDonald and J. K. Tyler, 1972, J. Chem. Soc. Chem. Comm., 995
were omitted because of large uncertainties. One fairly obvious typographical error in (2) was corrected, and one line from (1) was omitted for which the assigned identity was uncertain.
Assuming the molecule may be detected in space, the predictions may be sufficient for astronomical purposes. Predictions with uncertainties larger than 300 kHz should be viewed with some caution.
The dipole moment components were assumed to agree with those of the main species, see e056507.cat.