TY - JOUR
T1 - High-resolution IR spectrum of AsH2D
T2 - Ro-vibrational analysis of the bending triad bands ν3, ν4, and ν6
AU - Ulenikov, O. N.
AU - Bekhtereva, E. S.
AU - Gromova, O. V.
AU - Chudinova, T. D.
AU - Jerzembeck, W.
AU - Bürger, H.
PY - 2008/9/1
Y1 - 2008/9/1
N2 - The infrared spectrum of the AsH2D molecule has been measured in the region of the three bending fundamental bands on a Fourier transform spectrometer with a resolution of 0.0024 cm-1 and analyzed for the first time. More than 7500 normally allowed and in addition about 600 forbidden, but perturbation-activated transitions with Jmax = 21, Kamax = 20 and Kcmax = 21 have been assigned to the bands ν3, ν4, and ν6. The measured transition wavenumbers were used to determine 1047 upper energy values. These energies were fitted with a Watson-type Hamiltonian in A reduction and IIIl representation taking into account resonance interactions between all three bending states, (001000), (000100), and (000001) and led to a physically meaningful set of 25 diagonal and 52 resonance spectroscopic parameters. These reproduce the experimental energies with an rms deviation of 0.00021 cm-1, which is close to the experimental uncertainty.
AB - The infrared spectrum of the AsH2D molecule has been measured in the region of the three bending fundamental bands on a Fourier transform spectrometer with a resolution of 0.0024 cm-1 and analyzed for the first time. More than 7500 normally allowed and in addition about 600 forbidden, but perturbation-activated transitions with Jmax = 21, Kamax = 20 and Kcmax = 21 have been assigned to the bands ν3, ν4, and ν6. The measured transition wavenumbers were used to determine 1047 upper energy values. These energies were fitted with a Watson-type Hamiltonian in A reduction and IIIl representation taking into account resonance interactions between all three bending states, (001000), (000100), and (000001) and led to a physically meaningful set of 25 diagonal and 52 resonance spectroscopic parameters. These reproduce the experimental energies with an rms deviation of 0.00021 cm-1, which is close to the experimental uncertainty.
KW - Fundamental bands of AsHD
KW - Infrared spectrum
KW - Isotopic species of AsH
KW - Spectroscopic parameters
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U2 - 10.1016/j.jms.2008.02.002
DO - 10.1016/j.jms.2008.02.002
M3 - Article
AN - SCOPUS:50149122598
VL - 251
SP - 114
EP - 122
JO - Journal of Molecular Spectroscopy
JF - Journal of Molecular Spectroscopy
SN - 0022-2852
IS - 1-2
ER -