TL;DR: In this article, a dehalogenation polycondensation of polythiophene (PTh) and poly(p-phenylene) with linear structure and high crystallinity in high yields is described.
Abstract: Dehalogenation polycondensation of 2,5-dihalothiophene and 1,4-dihalobenzene affords polythiophene (PTh) and poly(p-phenylene), respectively, with linear structure and high crystallinity in high yields. Vacuum deposition of both polymers gives crystalline films with their main chain essentially perpendicular to the surface of the substrates. Doping of PTh with iodine and FeCl 3 gives semiconducting adducts, and the doping-undoping process of PTh with iodine and hydrazine is reversible from the viewpoint of not only chemical structure but also packing structure in the solid state.
TL;DR: In this paper, it was shown that AsF 5 -doped poly( p -phenylene) exhibits a Hall effect with a Hall mobility approaching 10 −4 m 2 /V s for doping levels between 0.24 and 0.42 moles per mole of monomer.
TL;DR: In this article, it was shown that irradiation (γ>290 nm) of an aqueous suspension of poly(p-phenylene) leads to photocatalytic H2 evolution in the presence of triethylamine or diethylamine.
Abstract: Irradiation (γ>290 nm) of an aqueous suspension of poly(p-phenylene) leads to photocatalytic H2 evolution in the presence of triethylamine or diethylamine.