Poly[4,6-bis(bis(4-methoxyphenyl)aminium)-1,2-phenylenevinylene]: A high-spin and durable polyradical

Hidenori Murata; Ryosuke Takada; Hiroyuki Nishide

doi:10.1016/j.poly.2005.03.100

Poly[4,6-bis(bis(4-methoxyphenyl)aminium)-1,2-phenylenevinylene]: A high-spin and durable polyradical

Hidenori Murata, Ryosuke Takada, Hiroyuki Nishide

Waseda Research Institute for Science and Engineering

Research output: Contribution to journal › Article

6 Citations (Scopus)

Abstract

A purely organic and high-spin polyradical molecule was synthesized, along the non-Kekulé and non-disjoint design of the π-conjugated poly(1,2-phenylenevinylene) backbone pendantly 4,6-substituted with the robust arylaminium radicals. 4,6-Bis(bis(4-methoxyphenyl)amino)-2-bromostyrene was synthesized and polymerized with a Pd-phosphine catalyst to afford the head-to-tail linked polyradical precursor. Oxidation of the polymer with SbCl₅ gave the aminium polyradical with a half-life of >10 days at room temperature. A high-spin ground state with an average S = 5/2 for this polyradical was proved by magnetic susceptibility and ESR.

Original language	English
Pages (from-to)	2309-2314
Number of pages	6
Journal	Polyhedron
Volume	24
Issue number	16-17
DOIs	https://doi.org/10.1016/j.poly.2005.03.100
Publication status	Published - 2005 Nov 17

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Keywords

π-Conjugated polymer
Aminium cationic radical
Ferromagnetic interaction
Non-Kekulé molecule
Poly(phenylenevinylene)

ASJC Scopus subject areas

Biochemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Materials Chemistry

Cite this

Murata, H., Takada, R., & Nishide, H. (2005). Poly[4,6-bis(bis(4-methoxyphenyl)aminium)-1,2-phenylenevinylene]: A high-spin and durable polyradical. Polyhedron, 24(16-17), 2309-2314. https://doi.org/10.1016/j.poly.2005.03.100

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title = "Poly[4,6-bis(bis(4-methoxyphenyl)aminium)-1,2-phenylenevinylene]: A high-spin and durable polyradical",

abstract = "A purely organic and high-spin polyradical molecule was synthesized, along the non-Kekul{\'e} and non-disjoint design of the π-conjugated poly(1,2-phenylenevinylene) backbone pendantly 4,6-substituted with the robust arylaminium radicals. 4,6-Bis(bis(4-methoxyphenyl)amino)-2-bromostyrene was synthesized and polymerized with a Pd-phosphine catalyst to afford the head-to-tail linked polyradical precursor. Oxidation of the polymer with SbCl5 gave the aminium polyradical with a half-life of >10 days at room temperature. A high-spin ground state with an average S = 5/2 for this polyradical was proved by magnetic susceptibility and ESR.",

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AU - Nishide, Hiroyuki

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N2 - A purely organic and high-spin polyradical molecule was synthesized, along the non-Kekulé and non-disjoint design of the π-conjugated poly(1,2-phenylenevinylene) backbone pendantly 4,6-substituted with the robust arylaminium radicals. 4,6-Bis(bis(4-methoxyphenyl)amino)-2-bromostyrene was synthesized and polymerized with a Pd-phosphine catalyst to afford the head-to-tail linked polyradical precursor. Oxidation of the polymer with SbCl5 gave the aminium polyradical with a half-life of >10 days at room temperature. A high-spin ground state with an average S = 5/2 for this polyradical was proved by magnetic susceptibility and ESR.

AB - A purely organic and high-spin polyradical molecule was synthesized, along the non-Kekulé and non-disjoint design of the π-conjugated poly(1,2-phenylenevinylene) backbone pendantly 4,6-substituted with the robust arylaminium radicals. 4,6-Bis(bis(4-methoxyphenyl)amino)-2-bromostyrene was synthesized and polymerized with a Pd-phosphine catalyst to afford the head-to-tail linked polyradical precursor. Oxidation of the polymer with SbCl5 gave the aminium polyradical with a half-life of >10 days at room temperature. A high-spin ground state with an average S = 5/2 for this polyradical was proved by magnetic susceptibility and ESR.

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KW - Ferromagnetic interaction

KW - Non-Kekulé molecule

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10.1016/j.poly.2005.03.100