A reassessment of the ground-state infrared spectrum of BiH and BiD

It has been shown that a diode-laser spectrum of bismuth monohydride ( 1Σ) recently reported by Bopegedera, Brazier and Bernath contained some incorrect assignments. The spectra of both BiH and BiD have been remeasured with a nominal accuracy of ±0.001 cm −1; the data sets have been extended to high...

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Bibliographic Details
Published in:Chemical physics letters 1991-07, Vol.181 (5), p.485-490
Main Authors: Urban, Rolf-Dieter, Polomsky, Petra, Jones, Harold
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Exact sciences and technology
Molecular properties and interactions with photons
Molecular spectra
Physics
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Summary:It has been shown that a diode-laser spectrum of bismuth monohydride ( 1Σ) recently reported by Bopegedera, Brazier and Bernath contained some incorrect assignments. The spectra of both BiH and BiD have been remeasured with a nominal accuracy of ±0.001 cm −1; the data sets have been extended to higher rotational and vibrational quantum numbers, and accurate Dunham parameters determined. A simultaneous fit of the data sets of BiH and BiD was carried out to obtain a set of mass-independent parameters and mass-scaling coefficients.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(91)90385-M