5-异烟酰胺基异酞酸与含氮配体构筑的两个铜配合物：水热合成、晶体结构和磁性质研究(英文)

Hydrothermal Syntheses,Crystal Structures and Magnetic Property of Two Copper(Ⅱ) Complexes Constructed from 5-(Isonicotinamido) isophthalic Acid and N-donor Ligands

由水热法合成了2个铜配合物[Cu(INAIP)(bbi)].5H2O(1)和[Cu(INAIP)(phen)(H2O)].H2O(2)(H2INAIP=5-异烟酰胺基异酞酸,bbi=1,4-二咪唑基丁烷,phen=1,10-邻菲咯啉),并用元素分析、IR及X-射线单晶衍射等对其进行了表征。晶体结构分析结果表明:配合物1和2都属于单斜晶系,C2/c空间群。配合物1是由1,4-二咪唑基丁烷连接[Cu(INAIP)]一维链形成的二维双层结构,而配合物2是通过π-π堆积作用将[Cu(INAIP)]一维无限链延伸为二维结构,这2个化合物最终均被氢键拓展成三维超分子结构。在1.8～300 K温度范围内测试了配合物1和2的变温磁化率,结果表明配合物1中由羧基桥联的双核铜之间存在弱的反铁磁相互作用,而配合物2表现为顺磁性。

Two Cu（II） complexes [Cu（INAIP）（bbi）]·5H2O（1） and [Cu（INAIP）（phen）（H2O）]·H2O（2） were obtained by hydrothermal reactions of CuCl2·2H2O with 5-（isonicotinamido）isophthalic acid（H2INAIP） and N-donor ligands of 1,1′-（1,4-butanediyl）-bis（imidazole）（bbi） and 1,10-phenanthroline（phen）,respectively.Both compounds crystallize in monoclinic space group C2/c.Single crystal X-ray diffraction analysis revealed that the bbi ligands connect [Cu（INAIP）] 1D chains to form 2D bi-layers in complex 1,while complex 2 displays a 1D chain structure,extending to 2D net through the π-π interactions.Complexes 1 and 2 are finally extended to 3D supramolecular structures by hydrogen bonding interactions.In addition,the magnetic property of complexes 1 and 2 has been investigated in the temperature range of 1.8～300 K,and the results show the weak antiferromagnetic interactions between the two Cu（II） ions bridged by carboxylate groups in 1,and the paramagnetic behavior of 2.CCDC： 781788,1;781789,2.