Optika Atmosfery i Okeana Journal

Vol. 2, issue 10, article # 5

Bulatov V. P., Dzegilenko F. N., Lozovskii V. A., Matyagin Yu. V., Sarkisov O. M., Sviridenkov E. A. Identification of the electronic-vibrational-rotational spectrum of the HO₂ radical in the region 1,22-1,27 μm. // Atmospheric and oceanic optics. 1989. V. 2. No. 10. P. 895-906. PDF
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Abstract:

The high-resolution electronic-vibrational-rotational spectrum of the ²A' → ²A''electronic transition of the H₂O radical in the region 1.22-1.27 μm was studied. The spectrum was obtained by the method of intracavity laser spectroscopy. The spectrum was calculated using Polo's formulas for slightly asymmetric prolate tops. Analysis of the spectra yielded accurate values for the rotational constants of the ²A'(001) and ²A'(020) states and the vibrational frequencies n₂ and n₃ of the A^~2A' state . It was established that the forbidden ΔK = 0 transitions occur. A possible mechanism (Coriolis interaction of the close-lying ²A'(001) and ²A'(010) levels) explaining their appearance is proposed. It is shown based on calculations that vibrationally excited HO₂ radicals are formed in the ²A" (010) state via the reaction СН₃О+O₂→ СН₂O+НО₂.

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