【摘要】 合成了两种不对称草酰胺桥联异四核配合物[Cu(oxca)]3M(H2O)2·5H2O[oxca表示N (2 羧基苯)·N′ (3 氨丙基)草酰胺三价阴离子,M=Nd(Ⅲ),Gd(Ⅲ)]。用元素分析、红外光谱、电子光谱等对所合成配合物进行了表征。在DMSO中采用循环伏安法研究了配合物的电化学性质。在4～300K范围内测量了[Cu(oxca)]3Gd(H2O)2·5H2O体系的变温磁化率,经拟合得磁参数J=0.537cm-1。结果表明异四核配合物分子内金属离子间存在较弱的铁磁性自旋交换相互作用。更多还原

【Abstract】 Two novel heterotetranuclear complexes were synthesized, namely 3M(H20)2·5H2O where oxca=N(2carboxy phenyl)-N′(3aminopropyl) oxamide and M=Nd, Gd. Based on the results from IR, elemental analysis, and conductivity measurements and electronic spectrometry, thermogravimetry analysis, the complexes are proposed to have extended oxamidobridged structures.The electrochemical properties of these heterotetranuclear complexes were measured by cyclic voltammetry in DMSO. The temperature dependence of the magnetic susceptibility of Cu3Gd was studied over the range 4～300 K, and the exchange integral J=0.537 cm-1 is obtained.更多还原