Kinetics and chemiluminescence in the reaction of N atoms with O2 and O3
- 1 January 1987
- 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. 83 (8) , 1453-1463
- https://doi.org/10.1039/f29878301453
Abstract
Room-temperature rate constants for the reactions N + O2→ NO + O (1), N + O3→ NO + O2(2), have been measured using the discharge flow chemiluminescence technique. Values obtained are, k1=(8.8 ± 0.4)× 10–17 cm3 molecule–1 s–1, k2=(1.0 ± 0.2)× 10–16 cm3 molecule–1 s–1. Visible and near-i.r. emissions were observed on adding O2 or O3 to a flow of N atoms, but neither reaction (1) nor reaction (2) appears to be the source of the chemiluminescence. Further experiments were conducted to elucidate the excitation mechanisms. Chemiluminescence from electronically excited NO and O2 was observed and mechanisms for the formation of these species are proposed.Keywords
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