草酸根桥联的Zn3^ⅡFe^Ⅲ异四核配合物的合成及其性质

Synthesis and properties of Zn_3~ⅡFe~Ⅲheterotetranuclear complexes through oxalate bridges

合成和表征了两种新的草酸根桥联的异四核配合物 [Zn3Fe(C2 O4 ) 3(bpy) 6](NO3) 3(1 )和 [Zn3Fe(C2 O4 ) 3(Me2 bpy) 6](NO3) 3(2 ) ,其中 bpy表示 2 ,2′-联吡啶 ,Me2 bpy表示 4,4′-二甲基 - 2 ,2′-联吡啶 .经元素分析、摩尔电导率和红外光谱等测定结果推定 ,配合物具有草酸根桥联结构 .实验结果表明 ,异四核配合物的杀菌活性优于桥联配体的杀菌活性 .

Two new oxalate bridged heterotetranuclear complexes have been synthesized and characterized,namely[Zn 3Fe(C 2O 4) 3L 6](NO 3) 3(L denotes 2,2′ dipyridyl and 4,4′ dimethyl 2,2′ dipyridyl,respectively).Based on elemental analysis,IR and molar conductivity measurements,two complexes are proposed to have oxalate bridged structures.The experimental results show that antibacterial activities of the heterotetranuclear complexes are superior to the ligand.