MEASUREMENT OF ROTATIONAL SPECTRA, ROTATIONAL G-FACTORS, AND THE EQUILIBRIUM BOND LENGTH FOR $ArH^{+}$ BY TUNABLE FAR-INFRARED LASER SPECTROSCOPY

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1986

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Ohio State University

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Rotational spectra of $ArH^{+}$ and $ArD^{+}$ were measured in a magnetically confined plasma with a tunable far-infrared laser. By separating the $\Delta M_{J} = \pm 1$ components with a quarter wave plate, the rotational g-factors were determined. Combining this data with that available from $microwave^{1}$ and infrared $spectroscopy^{2,3}$ we can evaluate the Born-Oppenheimer equilibrium internuclear separation.

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$^{1}$. W. C. Bowman, G. M. Plummer, E. Herbst, and F. C. DeLucia, J. Chem. Phys. 79, 2093 (1983). $^{2}$. J. W. Brault and S. P. Davis, Phys. Scrip. 25, 268 (1982). $^{3}$. J. W. C. Johns, J. Mol. Spec., 106, 124 (1984). Address of Laughlin, Blake, Cohen and Saykally: Department of Chemistry, University of California, Berkeley, CA 94720
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http://hdl.handle.net/1811/16883

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Abstracts of OSU International Symposium on Molecular Spectroscopy 1980-1989