Abstract
Reactions of OH radicals and hydrated electrons with a water-soluble perylene derivative have been investigated in aqueous solutions by pulse radiolysis. In the absence of other additives, OH radicals and hydrated electrons, respectively, add the perylene molecule. While the electron adduct (absorption peaking at 615 nm) decays by a single reaction, the behavior of the OH adduct (absorbance peaking at 595 nm) is complicated. Its formation is followed by several processes attributed to bimolecular decay in competition with rearrangement and decarboxylation reactions. The OH-adduct and the subsequent transients react with reductants such as thiol and ferrocyanide and with oxidants such as ferricyanide. A reaction mechanism is proposed.
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