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# ROTATIONAL AND HYPERFINE STRUCTURE IN THE $\bar{B}- \bar{X}$ TRANSITION OF NIOBIUM METHYLIDYNE, NbCH

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/19435

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 Title: ROTATIONAL AND HYPERFINE STRUCTURE IN THE $\bar{B}- \bar{X}$ TRANSITION OF NIOBIUM METHYLIDYNE, NbCH Creators: Clouthier, Dennis J.; Kingston, C. T.; Merer, A. J. Issue Date: 1999 Abstract: High resolution spectra have been taken for some of the components of the perturbed $(0,0)$ band of the $\bar{B}^{3} \Delta_{1} - \bar{X}^{3}\Delta_{1}$ system of NbCH near 600 nm. Extensive Nb hyperfine structure $(I = 9/2)$ is found in all the rotational lines, consistent with the ground state electron configuration $(5 s \sigma)^{1} (4 d \delta)^{1}$. Experiments with NbCD are planned, and it is hoped to report the hyperfine constants and the molecular structure at the meeting. URI: http://hdl.handle.net/1811/19435 Other Identifiers: 1999-TB-06