Two acentric (6,3) topological 2-D frameworks with imidazole-containing tripodal ligand and their ferroelectric properties

被引：30
作者：
Tang, Yun-Zhi [1 ,2 ]
Yu, Yin-Mei [1 ]
Tan, Yu-Hui [1 ]
Wu, Ji-Si [1 ]
Xiong, Jian-Bo [1 ]
Wen, He-Rui [1 ]
机构：
[1] Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Peoples R China
[2] Jiangxi Univ Sci & Technol, Inst Engn, Ganzhou 341000, Peoples R China
来源：
DALTON TRANSACTIONS | 2013年 / 42卷 / 28期
基金：
中国国家自然科学基金;
关键词：
METAL-ORGANIC FRAMEWORKS; COORDINATION POLYMERS; CRYSTAL-STRUCTURES; COMPLEXES;
D O I：
10.1039/c3dt50432h
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Hydrothermal reaction of three-connecting ligands 1,3,5-tris(1-imidazolyl) benzene (tib) and MnSO4 or CoSO4 center dot 7H(2)O provides two new metal-organic frameworks, {[Mn(tib)(2)(H2O)(4)]SO4}(n) (1) and {[Co(tib)(2)(H2O)(4)]SO4}(n) (2). Single-crystal X-ray diffraction studies reveal that complexes 1 and 2 belong to the polar point group 3m, and have the same two-dimensional honeycomb networks with (6, 3) topology. The ferroelectric behavior investigation indicates that both compounds are typical ferroelectrics with an electric hysteresis loop showing a remnant polarization (P-r) of ca. 0.586 mu C cm(-2) and a coercive field (E-c) of 2000 V cm(-1) for 1 and P-r of ca. 0.208 mu C cm(-2) and a coercive field (E-c) of 2600 V cm(-1) for 2.
引用
收藏
页码：10106 / 10111
页数：6
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