A supramolecular ferroelectric realized by collective proton transfer

被引：123

作者：

Horiuchi, Sachio ^{[1
]}

Kumai, Reiji

Tokura, Yoshinori

机构：

[1] Natl Inst Adv Ind Sci & Technol, CERC, AIST, Tsukuba, Ibaraki 3058562, Japan

[2] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

[3] JST, ERATO, Tokura Multiferro Project, AIST, Tsukuba, Ibaraki 3058562, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2007年 / 46卷 / 19期

关键词：

dielectric properties; ferroelectricity; hydrogen bonds; hydrogen transfer; supramolecular chemistry;

D O I：

10.1002/anie.200700407

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cooperative crystals: In ferroelectric co-crystals of iodanilic acid (see picture, orange) and 5,5′-dimethyl-2,2′-bipyridine (green), the molecules are linked into polar chains by O-H⋯N and N+- H⋯O- hydrogen bonds. The application of a small electric field (E) effects a cooperative proton transfer across the hydrogen bonds, which is accompanied by a reversal of the polarity (P). (Figure Presented). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：3497 / 3501

页数：5

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