Dye laser excitation and fluorescence spectra have been used to provide information on rotational structure and energy linkages between several low‐lying electronic states of YbO. Configurational assignments of the observed low‐lying states have been made on the basis of vibrational frequencies. The X 1Σ+ ground state, with ΔG1/2=683 cm−1, is assigned to the Yb2+ 4f14 configuration, whereas five states with Ω=0−, 1, 2, 1, and 3 and ΔG1/2∼820–830 cm−1 are assigned to Yb2+ 4f136s. The lowest 4f136s(Ω=0−) state is found to be 910 cm−1 above the 4f14, X 1Σ+ state, thus establishing the linkage between the f14 and f13s configurations. The observed electronic states are discussed in relation to the ligand field model and the electronic state energies are fitted to determine the ligand field parameters. The configurational assignment for the YbO ground state proposed by M. Dolg and H. Stoll [Theor. Chim. Acta 75, 369 (1989)] is shown conclusively to be incorrect.
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1 December 1990
Research Article|
December 01 1990
Laser spectroscopy of low‐lying excited states in YbO: Linkage of the Yb2+ f 13s and f 14 configurations
Stephen A. McDonald;
Stephen A. McDonald
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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Steven F. Rice;
Steven F. Rice
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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Robert W. Field;
Robert W. Field
Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
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Colan Linton
Colan Linton
Physics Department, University of New Brunswick, P.O. Box 4400, Fredericton, N.B. E3B 5A3 Canada
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J. Chem. Phys. 93, 7676–7686 (1990)
Article history
Received:
April 18 1990
Accepted:
August 24 1990
Citation
Stephen A. McDonald, Steven F. Rice, Robert W. Field, Colan Linton; Laser spectroscopy of low‐lying excited states in YbO: Linkage of the Yb2+ f 13s and f 14 configurations. J. Chem. Phys. 1 December 1990; 93 (11): 7676–7686. https://doi.org/10.1063/1.459347
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