The pure rotational data have been reported by
(1) M. Tanimoto, S. Saito, and E. Hirota, 1986, J. Chem. Phys. 84, 1210.
The predictions are deemed to be reliable up to about 1.0 THz. Predictions of weaker fine or hyperfine structure components should be viewed with additional caution.
The dipole moment was assumed to agree with that of the main species, see e027513.cat.