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报道了两个新型配合物[cu(oxae)Cu(L)](ClO4)2[oxae=N,N’-双(2-氨基乙基)草酰胺二阴离子,L=2,2’-联吡啶(bpy)或4,4’-二甲基-2,2’-联吡啶(Me2bpy)]的磁性。用变温磁化率对配合物进行了表征,并用最小二乘法和从自旋Hamiltonian算符,H=-2JS1·S2,导出的磁方程拟合,求得交换积分为J=-278cm-1(bny)和J=-272cm-1(Me2bpy),表明Cu(Ⅱ)-Cu(Ⅱ)双核配合物中具有强的反铁磁超交换作用。同时测定了两个配合物的粉末ESR谱并进行了讨论。
Two novel complexes [Cu (oxae) Cu (L)] (ClO4) 2 [oxae = N, N’-bis (2-aminoethyl) oxalamide dianion, L = Pyridine (bpy) or 4,4’-dimethyl-2,2’-bipyridine (Me2bpy)]. The complexes were characterized by temperature-dependent magnetic susceptibility and the exchange integrals were found to be J = -278 cm -1 (bny) using the least square method and the magnetic equation derived from the spin Hamiltonian operator, H = -2JS1 · S2 ) And J = -272cm-1 (Me2bpy), indicating that the Cu (Ⅱ) -Cu (Ⅱ) binuclear complex has a strong antiferromagnetic super-exchange effect. The powder ESR spectra of the two complexes were also measured and discussed.