Electronic perturbation of supramolecular conjugates of porphyrins and phthalocyanines

Abstract

The redox potential of a supramolecular porphyrin–phthalocyanine heterodimer was perturbed by the stacking of an extra metalloporphyrin to the phthalocyanine. This stacking gave rise to π–π and electrostatic interactions between the tetracationic dimer and the tetraanionic metalloporphyrin, with a Au(III) metalloporphyrin exhibiting a larger effect than Cu(II) and Pd(II) complexes among square planar complexes.