Self-assembly of zinc aminoporphyrins

Abstract

The aniline–zinc porphyrin interaction is an order of magnitude weaker than the corresponding pyridine–zinc porphyrin interaction, but it is still strong enough to cause self-assembly of zinc aminoporphyrins in solution. Three isomeric systems are reported, two form self-assembled dimers, but the geometry of the third forces it to form an open chain oligomer. The stabilities and structures of the complexes have been determined using ¹H NMR spectroscopy.