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合成和表征了两种新的异双核配合物:[Cu(oxen)Ni(tmen)2](C1O4)2(1)和[Cu(oxen)Ni(tmd)2](C1O4)2·H2O(2);oxen表示N,N’-二(2-氨乙基)草酰胺根阴离子;tmen为N,N,N’,N’-四甲基乙二胺;tmd表示1,3-丙二胺.经元素分析、红外光谱、电子光谱、电导及磁性测量等方法已推定配合物具有草酰胺桥联结构,CU(Ⅱ)和Ni(Ⅱ)的配位环境分别为平面四方及八面体构型.测定了配合物(1)的变温磁化率(4—300K),其数值用最小二乘法和从囱旋哈密顿算符H—-2JS1·S2导出的磁方程拟合,求得交换参数=-121.6cm-1.文中还用Kahn理论解释了这种反铁磁自旋交换作用.
Two new heterobinuclear complexes were synthesized and characterized: [Cu (oxen) Ni (tmen) 2] (C1O4) 2 (1) and [Cu (oxen) Ni (tmd) 2] (C1O4) 2 · H2O 2); oxen represents N, N’-bis (2-aminoethyl) oxalate anion; tmen is N, N, N ’, N’-tetramethylethylenediamine; amine. The complex has oxalic acid bridged structure by elemental analysis, infrared spectroscopy, electron spectroscopy, conductance and magnetic measurement. The coordination environment of Cu (Ⅱ) and Ni (Ⅱ) is planar tetragonal and octahedral. The temperature - dependent magnetic susceptibility (4-300K) of the complex (1) was measured and the values were fitted by the least square method and the magnetic equations derived from the Hammer - Hamiltonian H - 2JS1 · S2, 121.6 cm-1. The Kahn theory is also used to explain this antiferromagnetic spin exchange.