NEAR INFRARED SPECTRUM OF HYDROGEN $SELENIDE^{*}$
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Date
1963
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Ohio State University
Abstract
“Ground state combination differences in four band’s, $2\nu_{1}$ and $\nu_{1} + \nu_{3}$ near $4600\;cm^{-1}$, and $2\nu_{1} + \nu_{2}$ and $\nu_{1} + \nu_{2} + \nu_{3}$ near $5600\;cm^{-1}$ have been analyzed simultaneously to obtain ground state constants for the two isotopic species $H_{2}{^{80}} Se^{1}$ and $H_{2}{^{78}} $Se, using an energy expression in which the centrifugal distortion energy is written in terms of the four distortion constants $\tau_{aaaa}, \tau_{bbbb_{1}}, \tau_{aabb}$ and $\tau_{abab}{^{2}}$.$^{2}$ Due to a Coriolis interaction between the bands $2\nu_{1}$ and $\nu_{1} + \nu_{3}$ (and also between the bands $2\nu_{1} + \nu_{2}$ and $\nu_{1} + \nu_{2} + \nu_{3})$ the first order energy expression is not able to fit either set of upper state rotational energy levels. However, buy coupling the sum rules for the interacting submatrices, $E^{+}$ with $E^{-}$ and $O^{+}$ with $O^{-}$, of the two vibrational states, we have obtained values for certain upper state constants.”
Description
$^{*}$Supported by the National Science Foundation. $^{1}$R.A. Hill and T.H. Edwards, J. Opt. Soc. Am. 53, 516, Abstract TB16. $^{2}$ R.A. Hill and T.H. Edwards, J. Mol. Spectroscopy 9, 494 (1962).
Author Institution: Department of Physics and Astronomy, Michigan State University
Author Institution: Department of Physics and Astronomy, Michigan State University