The lines were reported by
(1) P. B. Changala, N. Genossar-Dan, E. Brudner, T. Gur,
J. H. Baraban, and M. C. McCarthy,
2023, Proc. Natl. Acad. Sci. USA 120, Art. No. e2303586120.
Several parameters were evaluated from the main isotopolog.
A typographical error was corrected for one transition frequency.
The calculation may be sufficiently accurate up to 50 GHz;
some caution may be advisable at higher frequencies.
The dipole moment of the main isotopolog was taken from
a quantum-chemical calculation by
(2) D. E. Woon, 1996, Astrophys. J. 456, 602.
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