Determination of O2 (a¹Δg) and O2 (b¹Σ+g) yields in the reaction O + ClO → Cl + O2 : Implications for photochemistry in the atmosphere of Venus
- 1 September 1987
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 14 (9) , 949-952
- https://doi.org/10.1029/gl014i009p00949
Abstract
A discharge flow apparatus with chemiluminescence detector has been used to study the reaction O + ClO → Cl + O2*, where O2* = O2(a¹Δg) or O2(b¹Σ+g). The measured quantum yields for producing O2(a¹Δg) and O2(b¹Σ+g) in the above reaction are less than 2.5 × 10−2 and equal to (4.4 ± 1.1) × 10−4, respectively. The observed O2(a¹Δg) airglow of Venus cannot be explained in the context of standard photochemistry using our experimental results and those reported in recent literature. The possibility of an alternative source of O atoms derived from SO2 photolysis in the mesosphere of Venus is suggested.Keywords
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