Stratospheric Reactions of Peroxynitric Acid.
Final rept. 29 Sep 78-31 Dec 80,
SRI INTERNATIONAL MENLO PARK CA
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Both HO2 and NO2 play crucial roles in the chemistry of the upper atmosphere. For several years, these two species were thought to react via a radical disproportionation reaction, although it was suggested that a longer-lived complex could be formed according to reaction 1 HO2 NO2 M reversible reaction HOONO2 M. The importance of reaction 1 has recently been verified by direct observation of HO2NO2 by Fourier transform infrared spectroscopy. Moreover, the rate of reaction 1 has been measured, and its reverse reaction -1 has been studied. Also, RRKM theory has been applied to these data for reaction -1 so that its rate can be reliably estimated as a function of both temperature and pressure. In another publication, the effect of HO2NO2 on tropospheric photochemical smog chemistry was discussed.
- Atmospheric Physics
- Atomic and Molecular Physics and Spectroscopy