MAGNETIC CHARACTERIZATION AND COMPUTATIONAL MODELING OF POLY(PHENYLACETYLENE)S BEARING STABLE RADICAL GROUPS

被引：59

作者：

NISHIDE, H ^{[1
]}

KANEKO, T ^{[1
]}

IGARASHI, M ^{[1
]}

TSUCHIDA, E ^{[1
]}

YOSHIOKA, N ^{[1
]}

LAHTI, PM ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS, DEPT CHEM, AMHERST, MA 01003 USA

来源：

MACROMOLECULES | 1994年 / 27卷 / 11期

关键词：

D O I：

10.1021/ma00089a027

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The magnetic properties of poly(phenylacetylene)s with radical groups at the paraposition, poly[(3,5-di-tert-butyl-4-oxyphenyl)acetylene] (1),poly[[4-[(3,5-di-tert-butyl-4-oxyphenyl)(3,5-di-tert-butyl-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]phenyl]acetylene] (2), and poly[[4-(N-tert-butyl-N-oxyamino)phenyl]acetylene] (3), were studied with a SQUID magnetometer. The magnetization and magnetic susceptibility indicated unexpected antiferromagnetic interactions between the radical sites. The exchange interaction observed in these conjugated polyradicals was discussed in connection with their computationally modeled structures.

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页码：3082 / 3086

页数：5

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