Poly(3,3′-dihexyl-4,4′-dimethyl-1,1′-ferrocenylene-1,4-phenylene) and poly(3,3′-dihexyl-4,4′-dimethyl-1,1′-ferrocenylene-2,5-thienylene)

Bis(3-hexyl-4-methylcyclopentadienyl)arenes have been prepared from the sequential lithiatiation of dibromoarenes followed by reaction with 3-hexyl-4-methylcyclopenta-2-ene-1-one. The dicarbinol is then dehydrated with p-toluenesulfonic acid to give the bis(3-hexyl-4-methylcyclopentadienyl)arene. Poly(3,3'-dihexyl-4,4'-dimethyl-1,1'-ferrocenylenearylene)s were prepared via the reaction of dilithio bis(3-hexyl-4-methylcycylopentadienide)arylenes and iron(II) iodide in THF. The organic bridging ligands and polymers were characterized by DSC, GPC, NMR, CV, UV-vis, and TGA.