Synthesis and Structure of Two Acentric Heterometallic Inorganic-Organic Hybrid Frameworks with Both Nonlinear Optical and Ferroelectric Properties

被引:40
|
作者
Du, Fenglei [1 ,2 ]
Zhang, Huabin [1 ,2 ]
Tian, Chongbin [1 ,2 ]
Du, Shaowu [1 ]
机构
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
基金
中国国家自然科学基金;
关键词
COORDINATION POLYMERS; AROMATIC POLYCARBOXYLATE; LIGAND; POLARIZATION; ADSORPTION; CHIRALITY; POROSITY; SERIES; FILMS; IONS;
D O I
10.1021/cg400060t
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Solvothermal reactions of Cd(NO3)(2)center dot 4H(2)O with aromatic polycarboxylic acids in the presence of sodium nitrate led to two acentric three-dimensional (3D) heterometallic inorganic-organic hybrid frameworks, namely, [Me2NH2] [Cd2Na3(2,4-PYDC)(4)]center dot 2H(2)O (1) and [Me2NH2] [CdNa(OH-m-BDC)(2)(H2O)(2)]center dot 2H(2)O (2) (2,4-H2PYDC = 2,4-pyridinedicarboxylic acid, OH-m-H2BDC = 5-hydroxyisophthalic acid). The framework of 1 is constructed by a 3D inorganic Cd-Na connectivity, which resembles a concrete reinforcement structure and features a {CdNa}(n) rod-shaped chain, a {CdNa2}(n) helical chain, and a 20-membered {Cd6Na14} ring. Compound 2 is built up by one-dimensional inorganic {CdNa}(n) rod-shaped chains which are further connected by OH-m-BDC2- ligands, affording a 3D polymeric framework. Compounds 1 and 2 crystallize in acentric space groups, and both display powder second harmonic generation efficiencies approximately 0.8 and 0.7 times, respectively, than that of the potassium dihydrogen phosphate (KDP) powder. In addition, they also exhibit luminescence and potential ferroelectric properties.
引用
收藏
页码:1736 / 1742
页数:7
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