Abstract
Measurements of the ultraviolet spectrum of the Cl2O2 molecule formed at temperatures in the range 203–300 K by recombination of ClO radicals are reported. The equilibrium constant for the reaction has been determined and the products of photolysis of C12O2 at 254 nm investigated. The main photodissociation pathway for C12O2 probably produces Cl atoms and chlorine peroxy radicals, as assumed in calculation of the ozone loss by the ClO and C12O2 catalytic cycle in the Antarctic stratosphere.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
de Zafra, R. L. et al. Nature 328, 408–411 (1987).
Solomon, P. M. et al. Nature 328, 411–413 (1987).
Farman, J. C., Gardiner, B. G. & Shanklin, J. D. Nature 315, 207–210 (1985).
Stolarski, R. S. et al. Nature 322, 808–811 (1986).
Callis, L. B. & Natarajan, M., Nature 323, 772–777 (1986).
McElroy, M. B., Salawitch, R. J., Wofsy, S. C. & Logan, J. A. Nature 321, 759–762 (1986).
Mount, G. H., Sanders, R. W., Schmeltekopf, A. L. & Solomon, S., J. Geophys. Res. 92, 8320–8329 (1987).
Farmer, C. B., Toon, G. C., Schaper, P. W., Blavier, J.-F. & Lowes, L. L. Nature 329, 126–130 (1987).
Molina, L. T. & Molina, M. J. J. phys. Client. 91, 433–436 (1987).
Barton, R. A., Cox, R. A. & Wellington, T. J. J.C.S. Faraday Trans. 80, 2737–2743 (1984).
Hayman, G. D., Davies, J. M. & Cox, R. A. Geophys. Res. Lett. 13, 1347–1350 (1986).
Basco, N. & Hunt, J. E. Int. J. chem. Kinetics 11, 649–664 (1979).
Clyne, M. A. A. & Watson, R. T. J.C.S. Faraday Trans. 75, 1169–1187 (1977).
DeMore, W. B. et al. Chemical Kinetics and Photochemical Data for use in Stratospheric Modelling (Jet Propulsion Laboratory, California, Publication 85–37, 1985).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Cox, R., Hayman, G. The stability and photochemistry of dimers of the ClO radical and implications for Antarctic ozone depletion. Nature 332, 796–800 (1988). https://doi.org/10.1038/332796a0
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1038/332796a0
- Springer Nature Limited
This article is cited by
-
Multiconfigurational study on the synchronous mechanisms of the ClO self-reaction leading to Cl or Cl2
Theoretical Chemistry Accounts (2012)
-
Molecular dynamics investigations of chlorine peroxide dissociation on a neural network ab initio potential energy surface
Theoretical Chemistry Accounts (2012)
-
Theoretical study of the mechanism for the ClOO + NO reaction on the singlet potential energy surface
Structural Chemistry (2012)
-
A refined evaluation of the gas-phase dimerization thermodynamics of the ClO radical
International Journal of Thermophysics (1992)