Electropolymerization of zinc-10-bipyridinium-octaethyl-porphyrinate by cyc
lic scanning between -0.6 and +1.6 V yields a zigzag configured polymer, wh
ich 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-f
ace dimers in the solution.