Synthesis and characterization of a novel series of meso (Nitrophenyl and meso (carboxyphenyl) substituted porphyrins - Schiavon, Marco Antônio; Iwamoto, Lidia Sadako; Ferreira, Antonio G.; Iamamoto, Yassuko; Zanoni, Maria Valnice Boldrin; Assis, Marilda das Dores (Journal Brazilian Chemical Society, 2000)