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The lines have been reported by
(1) T. D. Varberg and K. M. Evenson,
1994, J. Mol. Spectrosc. 164, 531; and by
(2) T. Okabayashi and M. Tanimoto,
1997, Astrophys. J. 487, 463.
The 63Cu hyperfine splitting was partially resolved for the
J = 1 – 0 transition only.
The frequencies, uncertainties, and intensities are given below.
| frequency | unc. | int. | F' – F" |
468651.031 | 0.021 | –1.1227 | 1 – 2 |
468651.975 | 0.018 | –0.8216 | 2 – 2 |
468652.708 | 0.015 | –0.6455 | 3 – 2 |
The J = 2 – 1 transition has been omitted from the fit
because of a large shift due to the unresolved hyperfine splitting.
The dipole moment is from an ab initio calculation by
(3) D. P. Chong, S. R. Langhoff, C. W. Bauschliche, Jr., S. P. Walch, and H. Partridge,
1986, J. Chem. Phys. 85, 2850.
Calculated dipole moments of transition metal compounds should be viewed with some caution.
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