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

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

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

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
Volume41
Issue number1-2
DOIs
Publication statusPublished - 1991 Apr 30
Externally publishedYes

Fingerprint

Polyacetylenes
polyacetylene
Vibrational spectra
Iodine
vibrational spectra
iodine
Raman scattering
infrared spectra
Doping (additives)
Raman spectra
Infrared radiation
catalysts
conduction
Catalysts
alternations
Titanium
linkages
Raman spectroscopy
Fourier transforms
Polymers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Infrared spectra of A Ti(O-n-Bu)4-AlEt3 catalyst and vibrational spectra of highly-conducting polyacetylene. / Furukawa, Yukio; Imai, Y.; Ohta, H.; Tasumi, M.

In: Synthetic Metals, Vol. 41, No. 1-2, 30.04.1991, p. 91-94.

Research output: Contribution to journalArticle

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