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报道六齿配体N,N,N’,N’-四(2-苯并咪唑亚甲基)-1,2-乙二胺(EDTB)及单核镍(II)配合物[Ni(EDTB)]?2Cl?CH3OH?C2H5OH的合成、晶体结构和SOD模拟活性.该配合物为三斜晶系,P1空间群,a=1.0931(2)nm,b=1.1693(2)nm,c=1.6756(4)nm,α=76.042(3)°,β=88.787(3)°,γ=72.044(3)°,V=1.9740(7)nm3,Dc=1.321g/cm3,Z=2,F(000)=824,μ=0.670mm-1.最终因子R[I>2σ(I)]:R1=0.0611,wR2=0.1497;R(全部数据):R1=0.0870,wR2=0.1604.结构分析表明,镍(II)分别与配体中的四个苯并咪唑氮和两个亚胺基氮配位形成扭曲的八面体构型.改良的邻苯三酚自氧化活性测定表明,该配合物具有较高的SOD模拟活性.
The hexagonal ligands N, N, N ’, N’-tetrakis (2-benzimidazolylmethylene) -1,2-ethylenediamine (EDTB) and mononuclear nickel (II) complexes [Ni )] 2Cl? CH3OH? C2H5OH was synthesized. The complex is triclinic with P1 = 1.0931 (2) nm, b = 1.1693 (2) nm and c = 1.6756 (4) nm, α = 76.042 (3) °, β = 88.787 (3) °, γ = 72.044 (3) °, V = 1.9740 (7) nm3, Dc = 1.321g / cm3, Z = (All data): R1 = 0.0870, wR2 = 0.1604. The structural analysis shows that the final factor R [I> 2σ (I)] is R1 = 0.0611 and wR2 is 0.1497, Nickel (II) complexes with four benzimidazoles and two imine nitrogens in the ligand, respectively, to form a distorted octahedral configuration. The improved pyrogallol autoxidation activity assay showed that the complex has a higher High SOD mimics activity.