Synthetic studies of extraordinarily long oligothiophenes

T. Otsubo, Y. Aso, K. Takimiya, H. Nakanishi, N. Sumi

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)

Abstract

This paper describes synthetic approaches to extraordinarily long oligothiophenes, which correspond to mono-disperse polymers. The most successful approach is a combination of a random coupling reaction of mono- and diethynylsexithiophenes and a subsequent sodium sulfide-induced cyclization reaction of the diacetylene parts to thiophene rings, forming a series of long oligothiophenes Oct-nT up to the 48-mer. The systematic study of the Oct-nT series reveals that the effective conjugation length of conjugated polythiophenes extends to around 20 thiophene units.

Original languageEnglish
Pages (from-to)325-328
Number of pages4
JournalSynthetic Metals
Volume133-134
DOIs
Publication statusPublished - 2003 Mar 13
Externally publishedYes
EventISCOM 2001 - Rusutsu, Hokkaido, Japan
Duration: 2001 Sep 102001 Sep 14

Keywords

  • Effective conjugation length
  • Mono-disperse polymers
  • Nanoscale molecules
  • Oligothiophenes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Synthetic studies of extraordinarily long oligothiophenes'. Together they form a unique fingerprint.

Cite this