The interaction of a β-fused isoindoline–porphyrin conjugate with nucleic acids

A diiminoisoindolo-pyrazino unit was annulated to the beta-pyrrolic position of the Zn complex of tetraphenylporphyrin, giving a macrocycle with an expanded pi system in satisfactory yields. The crystal structure of this derivative evidenced the formation of a hydrogen bond network. The interaction of the beta-fused isoindoline porphyrin derivative with nucleotides and nucleic acids has been investigated.