FOURIER TRNSFORM SPECTROSCOPY OF BaO: ANALYSIS OF $A^{1}\Sigma^{+} - X^{1}\Sigma^{+}$ CHEMILUMINESCENCE

Li, Hongzhi; Focsa, Cristian; Pinchemel, Bernard; Bernath, P. F.; Le Roy, Robert J.

FOURIER TRNSFORM SPECTROSCOPY OF BaO: ANALYSIS OF $A^{1}\Sigma^{+} - X^{1}\Sigma^{+}$ CHEMILUMINESCENCE

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Date

2000

Authors

Publisher

Ohio State University

Abstract

The $A 1 Σ + − X 1 Σ +$ emission spectrum of BaO from a Broida-type oven was revisited using a Fourier transform spectrometer. A total of 82 vibrational bands of $138 B a O$ were measured in the range of 8.900 to $21.000 c m −1$ at a resolution of $0.004 c m −1$ . The vibrational quantum number of the Ground state was observed up to $u'' =20$ and up $ν' =11$ for the excited A state. In addition, 72 bands $f r o m 138$ BaO, $136$ Bao and $135$ BaO isotopomers were also measured, Over 15,000 rotational lines were analyzed at a precision of about $0.005 c m −1$ . Significantly improved spectral constants for the ground state are obtained.

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Author Institution: Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Waterloo

URI

http://hdl.handle.net/1811/19942

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Abstracts of OSU International Symposium on Molecular Spectroscopy 2000-2009

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