Abstract
Abstract The role of hydroxylated semiconducting surfaces in the intermolecular oxidation and reduction reaction of 1,1-diphenyl-2-picrylhydrazyl with adsorbed water has been explored. Major products were isolated on various catalysts, characterized and their yields determined. The reaction is the same whether a solvent is present or not. It appears that a simultaneous presence of surface OH groups and ‘F-centers’ is necessary on the surface of a catalyst for the reaction to occur. Considering the mode of catalysis a mechanism for the reaction is proposed on stoichiometric basis.
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