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A NEW ELECTRONIC BAND SYSTEM OF BaO

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/16489

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Title: A NEW ELECTRONIC BAND SYSTEM OF BaO
Creators: Hsu, C. J.; Krugh, William D.; Palmer, H. B.; Obenauf, R. H.; Aten, C. F.
Issue Date: 1974
Abstract: The flame spectrum of Ba(g) burning at low pressure in the oxidants $N_{2}O$, $NO_{2}$ and $O_{2}$ is observed to include a long progression and an overlapping short progression bands in the violet and ultraviolet. A vibrational analysis is possible with the aid of theoretical calculations by $Michels^{1}$ and the analysis of perturbations in the $A^{1}\Sigma^{+} - X^{1}\Sigma^{+}$ system by $Field.^{2}$ The bands are assigned to $A^{\prime}^{1}\Pi - X^{1}\Sigma^{+}$. The long progression is ($v^{\prime}$, 0) with $v^{\prime}$ running from 13 to 29. The short progression is ($v^{\prime}$, 1) with $v^{\prime}$ running from 22 to 28. For the parameters of the $A^{\prime}^{1}\Pi$ state we obtain $\tilde\nu_{oo}$ = 17569 $\pm$ 15 $cm^{-1}$, $\omega_{o} = 442.8$ $\pm$ $1.1 cm^{-1}$, and $\omega_{o}x_{o} = 1.71$ $\pm$ .01 $cm^{-1}$. The first two are in remarkably good agreement with $Field.^{2}$
URI: http://hdl.handle.net/1811/16489
Other Identifiers: 1974-TG-8
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