Poly[(N-Oxyamino) and (Oxyphenyl)Phenylenevinylene]s: Magnetically Coupled Polyradicals in the Chain
作者:
Takashi Kaneko,
Shuichi Toriu,
Takeshi Nii,
Eishun Tsuchida,
Hiroyuki Nishide,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 272,
issue 1
页码: 153-160
ISSN:1058-725X
年代: 1995
DOI:10.1080/10587259508055283
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Poly(phenylenevinylene)s with built-in radical groups are expected to show magnetic interaction caused by spin polarization and/or coplanarity of the π-conjugated chain. Diradical models for the poly(phenylenevinyllene)- based polyradicals were synthesized, and the magnetic properties were discussed based on ESR spectra and magnetic measurement. Magnetization and magnetic susceptibilities of the polyradicals,tert-butylnitroxyl- and 2,6-di-tert-butylphenoxyl-substituted poly(1,2- or 1,4-phenylenevinylene), indicated the occurrence of ferromagnetic interaction corresponding to these oligomeric diradicals.
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