| Abstract: | Solutions of potassium ferrocyanide in 10 N NaOH glass and in ethylene-glycol/water (3/1) glass at 77°K were irradiated with UV-light. The ratio of the yields of radicals in the two solvents, as well as the scavenging efficiency of an election scavenger (acrylamide) in 10 N NaOH, were found to change with the irradiation wavelength. From the experiments the conclusion is drawn that the ejection of electrons may occur from different electronic levels depending on the excitation wavelength and that the electrons ejected from a charge-transfer-to-solvent state have higher reactivity with a scavenger than electrons ejected from intramolecular singlet states. |
