Bis-porphyrin copolymers covalently linked by pyridinium spacers obtained by electropolymerization from β-octaethylporphyrins and pyridyl-substituted porphyrins
Bis-porphyrin copolymers covalently linked by pyridinium spacers obtained by electropolymerization from β-octaethylporphyrins and pyridyl-substituted porphyrins
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.