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选择含氮的有机羧酸配体1,3-di(3’,5’-dicarboxylphenyl)pyridine(C_(21)H_(13)NO_8,H_4L),与过渡金属锌在DMA/CH_3CN/H_2O的混合溶剂热体系中配位组装,合成了一例具有3D开放骨架结构的双核锌金属羧酸配位化合物———Zn_2(C_(21)H_9NO_8)(H_2O)(配合物1).用单晶X-射线衍射分析确定了其晶体学结构,配合物1结晶在正交晶系,P2_12_12_1空间群(No.19);有机羧酸衍生物配体H_4L结构中的羧酸氧原子与金属锌螯合配位形成1个双核锌的次级结构单元,再通过有机配体的配位作用连接形成配合物1的三维开放骨架结构,沿y轴方向具有空旷的孔道结构.
The nitrogen-containing organic carboxylic acid ligand 1,3-di (3 ’, 5’-dicarboxylphenyl) pyridine (C_ (21) H_ (13) NO_8 and H_4L) was mixed with transition metal zinc in DMA / CH_3CN / H_2O (C_ (21) H_9NO_8) (H_2O) (complex 1), which is a binuclear zinc metal carboxylate complex with 3D open framework structure, has been synthesized by solvothermal method using single crystal X- The crystal structure of complex 1 was confirmed by X-ray diffraction analysis. The complex 1 was crystallized in the orthorhombic, space group P2_12_12_1 (No.19). The carboxylic acid oxygen atom in the organic carboxylic acid derivative ligand H_4L was chelated with metal zinc Which forms a secondary structure unit of binuclear zinc, and then forms a three-dimensional open skeleton structure of the complex 1 through the coordination of organic ligands and has an open pore structure along the y-axis.