【摘要】 采用水热方法合成出一种新型配位聚合物[Cu(ox)(4,4′-bpy)]n(ox=草酸根离子,4,4′-bpy=4,4′-联吡啶),并通过X射线单晶结构分析、元素分析以及红外光谱测定对该化合物进行了表征.结果表明,标题化合物属于单斜晶系,Cm空间群,晶胞参数a=1·1921(7)nm,b=1·153(7)nm,c=0·5155(4)nm,β=113·38(3)°,V=0·6291(7)nm3,Z=2.该化合物是一个由{Cu(ox)}n链通过桥联配体4,4′-bpy垂直相连并具有矩形格子结构的二维层状配位聚合物,层与层之间交错排列,通过C4,4′-bpy—H…Oox层间氢键作用,进一步扩展成三维超分子网络结构.更多还原

【Abstract】 A new polymer [Cu(ox)(4,4’-bpy)]n(1)(ox=C2O2-4,4,4’-bpy=4,4’-bipyridine) was hydrothermally synthesized and characterized via elemental analyses,IR spectrum and single crystal X-ray diffraction.The polymer crystallizes in a monoclinic system,space group Cm,a=1.1921(7) nm,b=1.153(7) nm,c=0.5155(4) nm,β=113.38(3)°,V=0.6291(7) nm3,Z=2.Cu atom in the title compound is in an octahedral geometry with four O atoms from two bis-chelating oxalate ligands in equatorial plane and two N atoms from the 4,4’-bpy ligands in the axial position.The crystal structure possesses infinite {Cu(ox)}n chains connected with each other by the bridging 4,4’-bpy ligands in a perpendicular manner,leading to a 2D layered network with rectangular grids.The layers stacking in a staggered fashion are further assembled by C4,4’-bpy H…Oox hydrogen bonds and lead to a 3D supramolecular architecture.更多还原