4,4′-联吡啶桥联的三个铜有机膦酸配合物的合成、结构及磁性（英文）  

Syntheses,Structures and Magnetic Properties of Three Copper Phosphonates Bearing 4,4′-Bipyridine Bridge

作　　者：叶文鹏[1] 陈铭[1] 杨意[1] 查丽琴 马运声[1] 袁荣鑫[1] 

机构地区：[1]常熟理工学院化学与材料工程学院江苏省新型功能材料重点建设实验室,常熟215500

出　　处：《无机化学学报》2016年第8期1487-1494,共8页Chinese Journal of Inorganic Chemistry

基　　金：江苏省高校自然科学重大项目(No.14KJA150001);江苏省六大人才高峰计划资助

摘　　要：在水热条件下,以N-氧化-2-吡啶膦酸(H2L)为主配体,4,4′-联吡啶(bpy)为桥联配体,合成了3个铜有机膦酸配合物:{[Cu(L)(bpy)0.5(H_2O)]·2H_2O}n(1),{[Cu(HL)2(bpy)]·4H_2O}n(2)和{[Cu2(L)2(bpy)]·3H_2O}n(3)。配合物1中,相邻的铜离子由2个膦酸根连成二聚体,二聚体之间通过bpy桥联成一维链。配合物2中,单核[Cu(HL)2]被bpy连接成一维链。配合物3中,四聚体[Cu2(L)2]2被bpy连接成"砖块状"结构的二维层。磁性研究表明,配合物1和3中铜离子之间存在反铁磁性耦合。Three copper phosphonates {[Cu（L）（bpy）0.5（H2O）]2H2O}n （1）, {[Cu（HL）2（bpy）]4H2O}n （2） and {[Cu2（L）2（bpy）]3H2O}n（3）（H2L=2-pyridyl-N-oxide phosphonic acid, bpy=4,4＇-bipyridine） were synthesized under hydrothermal conditions. In compound 1, the adjacent Cu（Ⅱ） ions are connected by two phosphonate ligands into a dimer, which are bridged by bpy into 1D chain. Compound 2 has a 1D chain structure with[Cu（HL）2] as junction and bpy as linker. Compound 3 has a brick-like 2D structure with[Cu2（L）2]2 as junction and bpy as spacer. The magnetic property studies of compounds 1 and 3 reveal that antiferromagnetic interactions are mediated between the copper ions.

关 键 词：铜配合物 有机膦酸 4 4'-联吡啶 磁性 

分 类 号：O614.121[理学—无机化学]