Discovery of New Ferroelectrics: [H2dbco]2•[Cl3]•[CuCl3(H2O)2]•H2O (dbco=1,4-Diaza-bicyclo[2.2.2]octane)

被引：174

作者：

Zhang, Wen ^{[1
]}

Ye, Heng-Yun ^{[1
]}

Cai, Hong-Ling ^{[1
]}

Ge, Jia-Zhen ^{[1
]}

Xiong, Ren-Gen ^{[1
]}

Huang, Songping D. ^{[2
]}

机构：

[1] Southeast Univ, Ordered Matter Sci Res Ctr, Nanjing 21189, Peoples R China

[2] Kent State Univ, Dept Chem, Kent, OH 44242 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 21期

关键词：

D O I：

10.1021/ja102573h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Compound [H(2)dbco](2)center dot[Cl-3]center dot[CuCl3(H2O)(2)]center dot H2O undergoes a sharp dielectric anomaly and a paraelectric-to-ferroelectric phase transition at approximately -23 degrees C with a spontaneous polarization of 1.04 mu C cm(-2), being the first molecular metal coordination compound ferroelectrics with a large dielectric response involving a 2 orders of magnitude enhancement and distinct Curie phase transition point. This work has proved an effective way for exploration of new ferroelectrics based on a five-coordinated divalent metal through the combination of crystal engineering and Landau phase transition theory.

引用

页码：7300 / +

页数：4

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