PROTOTYPES FOR THE POLARONIC FERROMAGNET - SYNTHESIS AND CHARACTERIZATION OF HIGH-SPIN ORGANIC POLYMERS

被引：100

作者：

MURRAY, MM ^{[1
]}

KASZYNSKI, P ^{[1
]}

KAISAKI, DA ^{[1
]}

CHANG, WH ^{[1
]}

DOUGHERTY, DA ^{[1
]}

机构：

[1] CALTECH, DIV CHEM & CHEM ENGN, ARNOLD & MABEL BECKMAN LABS CHEM SYNTHESIS, PASADENA, CA 91125 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1994年 / 116卷 / 18期

关键词：

D O I：

10.1021/ja00097a024

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Preparation and characterization of several new polymers (1-7) that are considered one-dimensional prototypes for the polaronic ferromagnet are reported. Synthesis involved either Wittig or Suzuki coupling to produce polymers with extended pi systems. Oxidative doping (I-2 or AsF5) produces radical cations (polarons) that are stable at room temperature. Magnetic characterization of the doped polymers, using SQUID-based magnetometry, indicates that in several instances ferromagnetic coupling of polarons occurs along the polymer chain. Comparison of the various polymers reveals useful design principles and suggests new directions for the development of magnetic organic materials.

引用

页码：8152 / 8161

页数：10

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