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Published February 21, 1992 | public
Journal Article

A study of atom exchange between O_2(^1Δ) and ozone

Abstract

It has recently been suggested that isotope exchange between excited bimolecular oxygen and ozone may be partially responsible for the enrichments in stratospheric heavy ozone. To begin evaluating this possibility we have investigated the reaction ^(18)O_2(^1Δ)+^(16)O_3→(labeled ozone products) using a fast-flow reactor and molecular beam mass spectrometry. No reaction was observed, implying that the rate coefficient must be less than 5 × 10^(−16) cm^3/s molecule at 300 K, roughly two orders of magnitude smaller than is required to account for the atmospheric anomalies.

Additional Information

© 1992 Elsevier Science Publishers B.V. Received 27 September 1991; in final form 20 November 1991. Available online 7 February 2002. We would like to thank W.T. Rawlins for stimulating discussions regarding oxygen metastable tactics and R.W. Carr for loan of the microwave equipment.

Additional details

Created:
August 22, 2023
Modified:
October 17, 2023