A NEW ELECTRONIC BAND SYSTEM OF BaO

Loading...
Thumbnail Image

Date

1974

Journal Title

Journal ISSN

Volume Title

Publisher

Ohio State University

Research Projects

Organizational Units

Journal Issue

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 $Field.^{2}$

Description

This research was supported by the National Science Foundation. $^{1}$H. Michels, United Aircraft Research Laboratories, East Hartford, Connecticut, private communication of work to be published. $^{2}$R. W. Field, J. Chem. Phys., (1974).
Author Institution: Department of Material Sciences, The Pennsylvania State University

Keywords

Citation