Reactions of HO2 studied by flash photolysis with diode-laser spectroscopy
- 1 January 1982
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 78 (8) , 1469-1475
- https://doi.org/10.1039/f29827801469
Abstract
Tunable diode lasers make it possible to record the infrared spectra of transient species at Doppler-limited resolution on time-scales of 2 radical. Studies of the recombination of HO2 radicals at total pressures between 7 and 20 Torr give rate coefficients in the range (1.5–2.0) x 10–12 cm3 s–1 at 305 K for oxygen carriers. These values are significantly lower than other workers have found near atmospheric pressure. They support the view that this reaction yields H2O2+ O2 by two parallel paths, one a direct disproportionation the other involving an H2O4 intermediate.Keywords
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