Gj. Park et al., ELECTROCATALYTIC 4-ELECTRON REDUCTION OF DIOXYGEN BY 1,2-PHENYLENE-BRIDGED DICOBALT DIPORPHYRINS, Chemistry Letters, (4), 1995, pp. 255-256
1,2-Phenylene-bridged dicobalt diporphyrin 1 catalyzes efficiently the
four-electron reduction of dioxygen to water in acidic solution, The
catalytic activity of the diporphyrin is strongly affected by the subs
tituents on the phenyl rings attached to the porphyrin macrocycles.