Production of O(1D2) Atoms in the Photolysis of CO2 at close to 1600 Å

Photolysis of CO2/neopentane mixtures with a bromine lamp was studied at room temperature to obtain chemical evidence for primary formation of O(1D2) atoms in the photolysis of CO2 at close to 1600 A. The trends in the effects of various added gases on the yield of neopentanol agreed well with those reported in the literature for the rates of deactivation of O(1D2) atoms. This agreement demonstrated O(1D2) formation in the photolysis of CO2 at the wavelength used.