One-dimensional donor-acceptor polymer: Phosphorus porphyrins linked with molecular wire

• Autor: Segawa, H. ; Nakayama, N. ; Wu, F. ; Shimidzu, T.
• Assuntos: Applied sciences ; Exact sciences and technology ; Physicochemistry of polymers ; Polymerization ; Polymers and radiations
• É parte de: Synthetic metals, 1993-03, Vol.55 (2), p.966-971
• Descrição: One-dimensional phosphorus(V)porphyrin polymers linked with the various length of oligothienyl molecular wire toward the axial direction of the porphyrin ring were synthesized by the electrochemical polymerization of symmetrical phosphorus(V)porphyrin triads with two oligothienyl axial groups. In the polymers, the phosphorus(V)porphyrin unit tending to be an electron acceptor acted as a photoinduced hole generator, and the oligothienyl moiety tending to be an electron donor was able to transfer the positive hole just as molecular electric wire. The conductivity of these donor-acceptor polym ers was strongly enhanced by the photoirradiation, indicating that the photoinduced carrier formation and transfer occurs efficiently along the polymeric chain.
  
• Editor: Lausanne: Elsevier B.V
  
• Idioma: Inglês