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Far-Infrared Spectrum of HO2

✍ Scribed by K.V. Chance; K. Park; K.M. Evenson; L.R. Zink; F. Stroh

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
627 KB
Volume
172
Category
Article
ISSN
0022-2852

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✦ Synopsis

We have measured the frequencies of 17 transitions in the far-infrared spectrum of the hydroperoxyl radical, (\mathrm{HO}{2}), from 2.5 to (5.9 \mathrm{THz}), encompassing rotational levels up to (N=19) and (K{-1}) (=5). These measured transition frequencies are combined with previously measured microwave and millimeter-wave transition frequencies in a complete reanalysis of the (\mathrm{HO}_{2}) Hamiltonian for the ground vibrational state, including spin-rotation and nuclear hyperfine interactions. A revised set of molecular constants is presented. These include centrifugal distortion effects through octic dependence on the rotational angular momentum and the off-diagonal tensor component of the spin-spin dipolar interaction between the proton and the unpaired electron spin. (c) 1995 Academic Press, Inc.

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