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THE ELECTRONIC SPECTRA OF LaNH AND LaND

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/19716

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Title: THE ELECTRONIC SPECTRA OF LaNH AND LaND
Creators: Clouthier, Dennis J.; Merer, A. J.; Rixon, Scott J.; Varberg, Thomas D.
Issue Date: 2000
Abstract: Electronic bands of the new molecules LaNH and LaND have been observed by laser-induced fluorescence following the reaction of laser-ablated La metal with $NH_{3}$ or $ND_{3}$ under supersonic jet-cooled conditions. High-resolution data for LaNH show that the ground state is $^{2}\Sigma^{+} (b_{\hat{g}s})$ with $B_{0} = 0.305478 (22) cm^{-1}$. Extensive dispersed fluorescence data have given ground state vibrational frequencies for LaNH (LaND): $\nu_{2} (bend) = 462 (354) cm^{-1}$ and $\nu_{3} (La-N stretch) = 755 (744) cm^{-1}$. Two electronic systems with origins near 658 and 823 nm, both of which appear to have $^{2}\Pi$ upper states, have been identified from spectra in the 525 -- 875 nm region.
URI: http://hdl.handle.net/1811/19716
Other Identifiers: 2000-RA-06
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