DETERMINATION OF THE ELECTRONIC SYMMETRY OF DIATOMIC MOLECULES BY ELECTRIC DEFLECTION: LiO(g) AND LaO(g)
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Date
1964
Journal Title
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Publisher
Ohio State University
Abstract
Molecular-beam electric deflection and electric resonance experiments have been performed on LiO(g). A deflection (i.e. $refocusing^{1,2}$) behavior which differs quantitatively from that of LiF(g) has been correlated with the $^{2}\Pi$ ground state of LiO and with the observation of a first-order Stark effect in its electric resonance spectrum. Thus in favorable cases, the deflection (focusing) behavior of diatomic molecules can be used to distinguish between $\Sigma$ and non-$\Sigma$ ground states because of the small (second-order) Stark effect of the former and the large (first- or second-order) Stark effect of the latter. A focusing theory appropriate to these experiments has been developed. Experiments have been carried out to indicate the symmetry of the ground state of LaO(g). The spectroscopic $data^{3}$ for LaO will be reviewed in the light of our results. A theory of the chemical bond in diatomic molecules of the transition metals will be discussed.
Description
$^{1}$ L. Wharton, R. A. Berg and W. Klemperer, J. Chem. Phys., 2023, (1963). $^{2}$ A. B\""{u}chler, J. L. Stauffer, W. Klemperer and L. Wharton, J. Chem. Phys. 9, 2299 (1963). $^{3}$ L. Akerlind, Ark. Fysik 22, 65 (1962).
Author Institution: Department of Chemistry, Harvard University; Department of Chemistry, Arthur D. Little, Incorporated
Author Institution: Department of Chemistry, Harvard University; Department of Chemistry, Arthur D. Little, Incorporated