TY - JOUR
T1 - Poly[4,6-bis(bis(4-methoxyphenyl)aminium)-1,2-phenylenevinylene]
T2 - A high-spin and durable polyradical
AU - Murata, Hidenori
AU - Takada, Ryosuke
AU - Nishide, Hiroyuki
PY - 2005/11/17
Y1 - 2005/11/17
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.
KW - π-Conjugated polymer
KW - Aminium cationic radical
KW - Ferromagnetic interaction
KW - Non-Kekulé molecule
KW - Poly(phenylenevinylene)
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U2 - 10.1016/j.poly.2005.03.100
DO - 10.1016/j.poly.2005.03.100
M3 - Article
AN - SCOPUS:27644450565
SN - 0277-5387
VL - 24
SP - 2309
EP - 2314
JO - Polyhedron
JF - Polyhedron
IS - 16-17
ER -