The J" = 1 transition frequencies were taken from
(1) Z. Kisiel, E. Bialkowska-Jaworska, O. Desyatnyk, B. A. Pietrewicz, and L. Pszczólkowski, 2001, J. Mol. Spectrosc. 208, 113.
Additional data were taken from
(2) Z. Kisiel, 1985, Chem. Phys. Lett 118, 334.
Only transitions with uncertainties less than 0.1 MHz have been merged. The predictions are thought to be reliable throughout. Transition frequencies with uncertainties much larger than 1 MHz should be viewed with caution.
The dipole moment was measured in (1).