SEARCH Articles Figures Tables Azacrown ethers and porphyrinogens Facilitated Porphyrinogen Oxidation Porphyrin, from porphyrinogen Porphyrinogen and Porphyrin-Type Macrocycles Porphyrinogen aromatization Porphyrinogen conformation Porphyrinogen decarboxylase Porphyrinogen expanded Porphyrinogen metal complexes Porphyrinogen oxidized Porphyrinogen, ring synthesis Porphyrinogen, structure Porphyrinogens Porphyrins and Porphyrinogens