Infrared spectra of A Ti(O-n-Bu)4-AlEt3 catalyst and vibrational spectra of highly-conducting polyacetylene

Y. Furukawa*, Y. Imai, H. Ohta, M. Tasumi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A new method for measuring infrared spectra of a Ti(O-n-Bu)4-AlEt3 catalyst is developed. Upon heat treatment of the catalyst, formation of linear and/or cyclic oxo-complexes of titanium having the Ti-OTi linkage is suggested. The existence of oxo-complexes seems to be correlated with high electrical conductivity of resulting polyacetylene upon full iodine-doping. Raman spectra arising from doped domains have been obtained for the first time by Fourier transform Raman spectroscopy with 1064-nm excitation. Even at full iodine-doping, the polymer chain does not have a uniform bond order, and contains dope domains in which bond alternation persists. Small differences are observed between the Raman spectra of conventional and new highly-conducting polyacetylenes.

Original languageEnglish
Pages (from-to)91-94
Number of pages4
JournalSynthetic Metals
Issue number1-2
Publication statusPublished - 1991 Apr 30
Externally publishedYes

ASJC Scopus subject areas

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


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