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以2,2′-二甲氧基-4,4′-联苯二甲酸(H2L)为配体,采用溶剂热法合成了1个二维结构的铜配合物[Cu4L4(H2O)9]·10H2O(1)。借助IR,TGA,粉末和单晶X-射线衍射对其进行了表征。单晶结构分析表明1属于正交晶系,Pnma空间群,晶胞参数a=1.493 9(3)nm,b=3.051 6(6)nm,c=1.569 4(3)nm。在1的结构中存在4个晶体学不同的四方锥构型铜离子,3个水分子桥连4个铜离子形成一条锯齿形短链,短链间以配体相连为二维层,层间通过分子间氢键形成了三维超分子结构。热重分析表明1在295℃开始发生分解。变温磁化率显示1的铜离子间存在弱的反铁磁性。
A two-dimensional copper complex [Cu4L4 (H2O) 9] was synthesized by solvothermal method using 2,2’-dimethoxy-4,4’-biphenyldicarboxylic acid (H2L) 10H2O (1). It was characterized by IR, TGA, powder and single crystal X-ray diffraction. Single crystal structure analysis showed that 1 belongs to the orthorhombic system, Pnma space group with unit cell parameters of a = 1.493 9 (3) nm, b = 3.051 6 (6) nm and c = 1.569 4 (3) nm. In the structure of 1 there are four crystallographically different tetragonal pyramidal copper ions, three water molecules bridge four copper ions to form a zigzag short chain, the short chain is connected to the ligand as a two-dimensional layer, between the layers Three-dimensional supramolecular structures were formed by intermolecular hydrogen bonding. Thermogravimetric analysis showed that 1 started to decompose at 295 ° C. Variable temperature magnetic susceptibility shows that there is weak antiferromagnetism between copper ions.