Laboratory studies of heavy ozone

J. Morton, J. Barnes, B. Schueler, K. Mauersberger

Research output: Contribution to journalArticlepeer-review

141 Scopus citations


Dissociation of ozone in the Chappuis bands has been used as an O atom source to study isotope effects occurring in the O(3P) + O2(3Σg) recombination reaction. The ozone produced was found to be enriched in both of its heavy isotopes. The enrichment is approximately constant from 5 torr to 100 torr and decreases at higher pressures. It increases with temperature, with 50O3 showing a slightly faster rate of increase than 49O3. The results of this experiment have clearly isolated the source of the isotope effect to the gas phase O(3P) + O2(3Σg) recombination reaction. For comparison, we also present isotope ratios of ozone formed in an electric discharge. None of the results, however, have shown the large enhancement of 40% or more in mass 50 observed in some stratospheric measurements. -from Authors

Original languageEnglish (US)
Pages (from-to)901-907
Number of pages7
JournalJournal of Geophysical Research
Issue numberD1
StatePublished - 1990

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology


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