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

被引：3
|
作者：
Murata, H [1 ]
Takada, R [1 ]
Nishide, H [1 ]
机构：
[1] Waseda Univ, Dept Appl Chem, Shinju Ku, Tokyo 1698555, Japan
来源：
POLYHEDRON | 2005年 / 24卷 / 16-17期
关键词：
aminium cationic radical; non-Kekule molecule; pi-conjugated polymer; poly(phenylenevinylene); ferromagnetic interaction;
D O I：
10.1016/j.poly.2005.03.100
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A purely organic and high-spin polyradical molecule was synthesized, along the non-Kekule and non-disjoint design of the pi-conjugated poly(1,2-phenylenevinylene) backbone pendantly 4,6-substituted with the robust arylamininium 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-fire of >10 days at room temperature. A high-spin ground state with in average S = 5/2 for this polyradical was proved by magnetic susceptibility and ESR. (c) 2005 Elsevier Ltd. All rights reserved.
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收藏
页码：2309 / 2314
页数：6
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