Infrared spectroscopy and equilibrium structure of H2O+(X˜ 2B1)
Huet, T. R. ; Pursell, C. J. ; Ho, W. C. ; Dinelli, B. M. ; Oka, T.
College Park, Md. : American Institute of Physics (AIP)
Published 1992
College Park, Md. : American Institute of Physics (AIP)
Published 1992
| ISSN: |
1089-7690
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
Chemistry and Pharmacology
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| Notes: |
A color center laser spectrometer along with velocity modulation detection was used to record the absorption spectrum of H2O+ produced in an AC glow discharge between 3180 and 3390 cm−1 with a gas mixture of He/H2O. The predominant role of the reaction of metastable helium with H2O has been observed. The H2O+ ion is also present in the spectra recorded between 3100 and 3600 cm−1 with a gas mixture of He/H2/O2 and some features are illustrated. The ν1 and ν2+ν3−ν2 bands have been assigned and the previous analysis of the ν3 band [J. Mol. Spectrosc. 127, 1 (1988)] has been extended. The ν1 and ν3 states have been fitted together taking into account the vibration–rotation interaction. The molecular constants have been obtained for the ν1 and ν2+ν3 states and they have been improved in the case of the ν3 and the ground vibrational states. The equilibrium structure has been derived [re=0.9992(6) A(ring), θe=109.30(10)°] and the quadratic and cubic force field constants have been evaluated.
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| Type of Medium: |
Electronic Resource
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| URL: |