Photolysis of ozone at 308 and 248 nm: Quantum yield of O(1D) as a function of temperature

Details Photolysis of ozone at 308 and 248 nm: Quantum yield of O(1D) as a function of temperature Photolysis of ozone at 308 and 248 nm: Quantum yield of O(1D) as a function of temperature

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.1091t&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 9, p. 1091-1094

Physics

14

Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Atmospheric Composition And Structure: Constituent Sources And Sinks

Scientific paper

The quantum yield of O(1D), Φ(T), in the 308 nm photolysis of ozone has been shown to decrease very slightly with temperature (T), from 0.79+/-0.10 at 298 K to 0.73+/-0.10 at 200 K. At 248 nm, Φ is (0.91+/-0.06) independent of temperature (200-320 K). The rate constant for the reaction of O(1D) with O3 was measured to be (2.3+/-0.5)×10-10cm3molecule-1s-1, independent of temperature (200-350 K). The measured quantum yields suggest that the current recommendations over-estimate the effect of temperature on O(1D) quantum yields in O3 photolysis at 308 nm.

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