A nanometer-sized high-spin polyradical: Poly(4-phenoxyl-1,2-phenylenevinylene) planarily extended in a non-Kekule fashion and its magnetic force microscopic images

被引：66

作者：

Nishide, H ^{[1
]}

Ozawa, T ^{[1
]}

Miyasaka, M ^{[1
]}

Tsuchida, E ^{[1
]}

机构：

[1] Waseda Univ, Dept Polymer Chem, Tokyo 1698555, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2001年 / 123卷 / 25期

关键词：

D O I：

10.1021/ja002944u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A pi -conjugated, but non-Kekule- and nondisjoint-type poly(1,2-phenylenevinylene) network bearing 4-substituted di-tert-butylphenoxyls was synthesized through a one-pot polycondensation of the star-shaped subpart and the subsequent oxidation, which was persistent even at room temperature. The polyphenoxyl radical with a spin concentration of 0.4 displayed an average S of 10/2. The polyradical with the molecular weight of 3.2 x 10(4) gave a disklike image of ca. 35 x 0.6 nm with both an atomic and a magnetic force microscopy: the molecular image was examined as a nanoscale and single-molecular-based magnetic dot.

引用

页码：5942 / 5946

页数：5

共 40 条

[1]

Anderson KK, 1998, ADV MATER, V10, P688

[2]

Aviram A., 1998, ANN NEW YORK ACAD SC, V852

[3] Local magnetic probes of superconductors [J].