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出 处:《吉林大学学报(理学版)》2016年第2期382-387,共6页Journal of Jilin University:Science Edition
基 金:吉林省教育厅"十二五"科学技术研究项目(批准号:2013248)
摘 要:将4,4'-三苯胺二甲酸(H_2L)和硝酸镉分别加入1,4-二(咪唑)苯(bimb)和1,4-二(吡啶-4-甲氧基)苯(bpmb)中,在水热条件下合成两种新型的金属镉有机-无机配位聚合物{[Cd L(bimb)_(0.5)]·2H_2O}n(1)和[Cd(HL)_2(bpmb)_(0.5)]_n(2).利用X射线衍射(XRD)确定两种聚合物的结构,用元素分析、红外光谱(IR)、热重(TG)和粉末X射线衍射(PXRD)等对其结构进行表征,并在室温下测试两种配位聚合物的荧光属性.实验结果表明:配位聚合物1属三斜晶系,P 1空间群,其骨架为二维层状结构;配位聚合物2属单斜晶系,C2/c空间群,是由一维锯齿链通过氢键作用形成的3D超分子聚合物.Adding 4,4'-( phenylazanediyl) dibenzoic acid( H_2L) ligand and cadmium( Ⅱ) ions to 1,4-bis( imidazol-1-yl) benzene( bimb) and 1,4-bis( pyridine-4-ylmethoxy) benzene( bpmb),we synthesized two new types of metal cadmium organic-inorganic coordination polymers { [Cd L( bimb)_(0.5)]·2H_2O}n( 1) and[Cd( HL)_2( bpmb)_(0.5)]n( 2) under the hydrothermal conditions. We determined the structure of the two polymers by means of XRD,and characterized their structures with the help of elemental analysis,IR spectroscopy,TG and powder X-ray diffraction( PXRD). The fluorescence properties of two kinds of coordination polymers were tested at room temperature. The experimental results show that coordination polymer 1 crystallizes in the triclinic space group P 1,and its framework is a two-dimensional layered structure. Coordination polymer 2 crystallizes in the monoclinic space group C2 / c, and it 's a threedimensional supramolecular polymer formed by the H-bond of one-dimensional zigzag chains.
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