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

doi:10.1016/0379-6779(91)91007-W

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 journal › Article › peer-review

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 language	English
Pages (from-to)	91-94
Number of pages	4
Journal	Synthetic Metals
Volume	41
Issue number	1-2
DOIs	https://doi.org/10.1016/0379-6779(91)91007-W
Publication status	Published - 1991 Apr 30
Externally published	Yes

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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10.1016/0379-6779(91)91007-W

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@article{90c592061b224696b2bbc390699e9981,

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

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.",

author = "Y. Furukawa and Y. Imai and H. Ohta and M. Tasumi",

note = "Funding Information: ACKNOWLEDGEMENTS The present work was partially supported by a Grant-in-Aid for Scientific Research No. 01430004 and a Grant-in-Aid for Developmental Scientific Research No. 63840014 from the Ministry of Education, Science, and Culture.",

year = "1991",

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doi = "10.1016/0379-6779(91)91007-W",

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journal = "Synthetic Metals",

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T1 - Infrared spectra of A Ti(O-n-Bu)4-AlEt3 catalyst and vibrational spectra of highly-conducting polyacetylene

AU - Furukawa, Y.

AU - Imai, Y.

AU - Ohta, H.

AU - Tasumi, M.

N1 - Funding Information: ACKNOWLEDGEMENTS The present work was partially supported by a Grant-in-Aid for Scientific Research No. 01430004 and a Grant-in-Aid for Developmental Scientific Research No. 63840014 from the Ministry of Education, Science, and Culture.

PY - 1991/4/30

Y1 - 1991/4/30

N2 - 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.

AB - 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.

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

Abstract

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