Supramolecular Porphyrins as Electrocatalysts

Diverse approaches are being employed to build up supramolecular systems, including covalent and coordination bonds, electrostatic assembly, hydrogen bond, and even weaker interactions like π-stacking and dipole–dipole interactions. The use of weak bonds has been majoritary in supramolecular chemistry, but the metal–ligand coordination approach is becoming popular because well-defined tridimensional structures can be assembled using this strategy. In addition, the properties of the inserted metal complexes can be varied almost at will, thanks to the large number of metallic elements associated with a plethora of available oxidation states and ligands.