Synthesis and magnetic property of polyacetylene bearing π-conjugated bis(diphenylene)phenylallyl radical

Hiroyuki Nishide, Naoki Yoshioka, Yukoh Saitoh, Ritsuko Gotoh, Takeshi Miyakawa, Eishun Tsuchida

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

m- and p-Bis(diphenylene)propenylphenylacetylene (m-, p-8) were synthesized and polymerized with WCl6, MoCl5, and Rh catalyst, yielding solvent-soluble poly(phenylacetylene)s bearing a π-conjugated bis(diphenylene)propenyl groups (m-, p-7a). The polymers gave their polyanion derivatives, which were electrolytically and chemically oxidized to yield the corresponding polyradicals (m-, p-7b). The polyradicals were chemically very stable due to the resonance stabilization of an unpaired electron whose spin concentration could be increased up to ca. 2 × 1023 spins per molar monomer unit. ESR spectroscopy suggested an antiferro-magnetic interaction between unpaired electrons.

Original languageEnglish
Pages (from-to)775-786
Number of pages12
JournalJournal of Macromolecular Science - Pure and Applied Chemistry
VolumeA29
Issue number9
Publication statusPublished - 1992
Externally publishedYes

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Bearings (structural)
Polyacetylenes
Magnetic properties
Electrons
Paramagnetic resonance
Polymers
Stabilization
Monomers
Spectroscopy
Derivatives
Catalysts

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics

Cite this

Synthesis and magnetic property of polyacetylene bearing π-conjugated bis(diphenylene)phenylallyl radical. / Nishide, Hiroyuki; Yoshioka, Naoki; Saitoh, Yukoh; Gotoh, Ritsuko; Miyakawa, Takeshi; Tsuchida, Eishun.

In: Journal of Macromolecular Science - Pure and Applied Chemistry, Vol. A29, No. 9, 1992, p. 775-786.

Research output: Contribution to journalArticle

Nishide, Hiroyuki ; Yoshioka, Naoki ; Saitoh, Yukoh ; Gotoh, Ritsuko ; Miyakawa, Takeshi ; Tsuchida, Eishun. / Synthesis and magnetic property of polyacetylene bearing π-conjugated bis(diphenylene)phenylallyl radical. In: Journal of Macromolecular Science - Pure and Applied Chemistry. 1992 ; Vol. A29, No. 9. pp. 775-786.
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