SEARCH Articles Figures Tables Catalase, porphyrin-liganding group Group-IVa Porphyrins Group-IVb Porphyrins Group-V a Porphyrins Group-VI a Porphyrins Group-VIII Porphyrins Iron porphyrin, coordinative groups Iron porphyrin, coordinative groups types Leaving group effect porphyrins Porphyrin blocking group Porphyrin rings, Group 2 elements Porphyrinic groups linked Porphyrinic groups linked scaffold Porphyrins Group 14 phthalocyanines Porphyrins peripheral groups Tetraphenyl porphyrin groups