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Published on: February 8, 2018
Excited states of lutetium oxide and its singly charged cation
Lu Wu1, George Schoendorff2, Yuchen Zhang1
1Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, USA.
Abstract:
Vibronic spectra of lutetium oxide (LuO) seeded in supersonic molecule beams are investigated with mass-analyzed threshold ionization (MATI) spectroscopy and second-order multiconfigurational quasi-degenerate perturbation (MCQDPT2) theory. Six states of LuO and four states of LuO+ are located by the MCQDPT2 calculations, and an a3Π(LuO+) ← C2Σ+ (LuΟ) transition is observed by the MATI measurement. The vibronic spectra show abnormal vibrational intervals for both the neural and cation excited states, and the abnormality is attributed to vibrational perturbations induced by interactions with neighboring states.
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