A Polycationic Zinc-5,15-dichlorooctaethylporphyrinate-viologen Wire

Abstract

Electropolymerization of zinc-10-bipyridinium-octaethyl-porphyrinate by cyclic scanning between −0.6 and +1.6 V yields a zigzag configured polymer, which appears as swollen, vesicular bilayer on atomic force micrographs. The same procedure leads to micrometer-long wire-shaped linear polymers, if the 5,15-methine bridge carbon atoms are blocked by chlorine substituents. The wires come in two parallel strands originating from antiparallel face-to-face dimers in the solution.