The infrared spectrum of two isotopic species of gallium hydride ( 69GaH and 71GaH)

The infrared spectrum of gas-phase GaH in its ground electronic state has been observed using a diode laser spectrometer. The high intensity of the spectrum allowed the wavenumbers of transitions with J-values up to 28 to be determined in the fundamental and hot bands up to ν=5←4. In all, a total of...

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Bibliographic Details
Published in:Chemical physics letters 1989, Vol.154 (2), p.135-138
Main Authors: Urban, Rolf-Dieter, Magg, Ulrich, Jones, Harold
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Exact sciences and technology
Infrared spectra
Molecular properties and interactions with photons
Molecular spectra
Physics
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Summary:The infrared spectrum of gas-phase GaH in its ground electronic state has been observed using a diode laser spectrometer. The high intensity of the spectrum allowed the wavenumbers of transitions with J-values up to 28 to be determined in the fundamental and hot bands up to ν=5←4. In all, a total of 113 transitions were measured with a nominal accuracy of ±0.001 cm −1. These data have been used to obtain the most accurate values to date for the ground-state Dunham parameters of GaH. A much improved value of r e=1.662118(6) Å has been determined.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(89)87274-4