异烟酸与Ag(I)及硅钨酸配位聚合物的合成与晶体结构

摘要

One Keggin-based complex, [Ag12(L)8(H2O)5](SiW12O40)·6H2O (1) (L=isonicotinate) was synthesized under hydrothermal condition. The complex was characterized by elemental analysis, IR spectra, UV spectra and X-ray single crystal diffraction. The crystal belongs to monoclinic crystal system, space group C2/m with a=1.259 5(2) nm,b=2.4297(3) nm, c=1.825 7(3)nm,β=103.794(2)°, V=5.425 9(13)nm3, Z=2. Single crystal structural analysis reveals that the complex is a porous Keggin-based 3D coordination polymer based on the incorporation of void between 2D metal-organic networks and Keggin anion.%水热条件下.合成得到了异烟酸与Ag(I)及硅钨酸所形成的配位聚合物[Ag12(L)8(H2O)5](SiW12:O40)·6H20(1)(L=isonicotinate,异烟酸).通过元素分析和红外光谱、紫外光谱、X-射线单晶衍射对其组成和结构进行了表征.晶体结构分析结果表明:该配合物属于单斜晶系,C2/m空间群;晶胞参数分别为a=1.2595(2)nm,b=2.4297(3)nm,c=1.825 7(3)nm,β=103.794(2).,V=5.4259(13)am3,Z=2;异烟酸与Ag(I)及硅钨酸形成具有微孔的三维结构配位聚合物,即硅钨酸离子通过静电作用连接异烟酸离子与Ag(I)所形成的二维波浪式网格而形成三维结构.