New π-conjugated polyelectrolyte composed of alkylphenoxathiinium-type repeating units

Kenichi Oyaizu, Takefumi Mikami, Eishun Tsuchida*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The polymer-analogous condensation of aryl sulfoxides was employed as a convenient method to prepare the ladder-type polymer containing λ-alkylsulfanyliumdiyl linkages in the backbone that force the consecutive aromatic rings into planarity. The bridging λ-alkylsulfanyliumdiyl groups allowed for the electron delocalization between the aromatic subunits to give the π-conjugated system, which was suggested by the film properties and supported by the MO calculations. The reduction of the band gap from that of poly(alkylsulfonio-1,4-phenylene) was attributed to an increase in the planarity of the molecular geometry, which stabilized the LUMO through the symmetry-allowed bonding interaction between the pz orbitals of the sulfur atom and those of the adjacent carbon atoms.

Original languageEnglish
Pages (from-to)2325-2327
Number of pages3
Issue number6
Publication statusPublished - 2004 Mar 23

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry


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