| 含苯并咪唑基配体Zn(Ⅱ)、Cd(Ⅱ)配位聚合物的合成、结构以及荧光性质研究 |
| Synthesis, Crystal Structure and Fluorescence Property of Zn(Ⅱ), Cd(Ⅱ)Coordination Polymers with Benzoimidazol-Containing Ligand |
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| 摘要: 以3，5-二(苯并咪唑基)吡啶(L)、间苯二甲酸(m-H2BDC)、4-羧基肉桂酸(H2CCA)、ZnSO4·7H2O和Cd(NO3)2·4H2O为原料，使用溶剂热方法合成了两个配位聚合物[Zn(L)(m-BDC)](1)和[Cd(L)(CCA)]·2H2O(2)，利用红外、元素分析、热重分析和X-射线粉末衍射对其进行了表征，利用X-射线单晶衍射对结构进行了测定，并研究了配合物的荧光性质。在配合物1中，L与金属离子连接形成了一维(1D)链结构，而间苯二甲酸根离子与金属离子构成了一个M2(m-BDC)2(M=金属离子)的单元。一维链之间通过M2(m-BDC)2单元连接形成二维网状(2D)结构。在配合物2中，和配合物1类似，L与金属离子连接形成一维链，但与1不同的是羧酸配体与金属离子配位也构成了一维链结构，两种一维链通过配位作用连接构成二维结构。 |
| 关键词: 配位聚合物|荧光|晶体结构 |
| 基金项目: 国家自然科学基金（No.91122001）资助项目。 |
| Abstract: Two new coordination polymers [Zn(L)(m-BDC)] (1) and [Cd(L)(CCA)]·2H2O (2) were synthesized by solvothermal method using 3,5-di(1H-benzoimidazol-1-yl)pyridine (L), isophthalic acid (m-H2BDC), 4-(2-carbox-yvinyl)benzoic acid (H2CCA). And the complexes were characterized by FT-IR, elemental analysis, thermogravimetric analysis (TGA) and power X-ray diffraction (PXRD), meanwhile the crystal structures and fluorescence properties of the complexes have been studied. In complex 1, the ligand Lconnects the metal atoms to give a 1Dchain structure, and the m-BDC2- coordinates with metal atom to form a M2(m-BDC)2 unit (M=metal). Moreover, the adjacent 1D chains are linked by the M2(m-BDC)2 to produce a 2D network structure. In complex 2, the ligand joins the metal atoms to generate a 1D chain like that in 1. However, the carboxylate ligand coordinates with metal atoms to form a 1D chain, and two kinds of the 1D chains crosslink each other to produce a 2D structure. |
| Keywords: coordination polymers fluorescence property crystal structure |
| 投稿时间：2013-09-03 修订日期：2013-11-19 |
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| 赵越,翟玲玲,孙为银*.含苯并咪唑基配体Zn(Ⅱ)、Cd(Ⅱ)配位聚合物的合成、结构以及荧光性质研究[J].无机化学学报,2014,30(1):99-105. |
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