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Thea1Δ →X3Σ−Transitions of AsH and AsD

✍ Scribed by M. Beutel; K.D. Setzer; O. Shestakov; E.H. Fink

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
252 KB
Volume
178
Category
Article
ISSN
0022-2852

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✦ Synopsis

Emission spectra of the a 1 D r X 3 S 0 transitions of AsH and AsD have been observed in the near-infrared spectral region near 1.39 mm. The arsenic hydride radicals were generated and excited in a fast-flow system by reaction of arsenic vapor with hydrogen or deuterium atoms. The NIR chemiluminescence was measured with a Fourier-transform spectrometer equipped with a sensitive germanium detector. Analyses of the bands have yielded the following spectroscopic constants for the a 1 D state of AsH (in cm 01 ), where the numbers in parentheses are the standard deviations of the parameters: T e Å 7216.84(12), v e Å 2179.77(20), v e x e Å 37.69(7), B e Å 7.3297(9), and D e Å 0.00033.

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