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合成了脱氢枞胺(5-硝基)水杨醛Schiff碱及其Cu2+、Zn2+、Co2+和Ni2+配合物,用IR、1HNMR,UV-vis,摩尔电导及单晶X射线衍射对其进行结构表征。Cu(L)2形成经典的N2O2配体配合物,属于单斜晶系,C2空间群,晶胞参数为:a=3.6996nm,b=1.0835nm,c=1.2856nm,α=90°,β=103.36°,γ=90°。研究了溶剂的极性对配体和配合物紫外光谱变化的影响,当改变溶剂时,配体能发生分子内质子转移,从醇式结构变成酮式结构。金属配合物能溶于有机溶剂,摩尔电导率数据表明它们在二甲基甲酰胺、氯仿和甲苯中是非电解质,容易发生溶致变色性能。对配体及配合物进行了抑制大肠杆菌、金黄色葡萄球菌及枯草芽苞杆菌的生物活性测定,配体及配合物都表现出一定的生物活性,其中Cu配合物的活性最强,说明配合物的生物活性与金属有关。
Schiff bases of dehydroabietylamine (5-nitro) salicylaldehyde and their Cu2 +, Zn2 +, Co2 + and Ni2 + complexes were synthesized and characterized by IR, 1HNMR, UV-vis, molar conductance and single crystal X-ray diffraction Characterization. Cu (L) 2 forms the classic N2O2 ligand complex and belongs to the monoclinic space group C2 with unit cell parameters of a = 3.6996 nm, b = 1.0835 nm, c = 1.2856 nm, α = 90 °, β = 103.36 °, γ = 90 °. The influence of the solvent polarity on the UV spectra of the ligands and complexes was studied. When the solvent was changed, the intramolecular proton transfer occurred and the structure changed from the alcoholic to the ketonic structure. Metal complexes are soluble in organic solvents and molar conductivity data indicates that they are non-electrolytes in dimethylformamide, chloroform and toluene and are prone to lyotropic properties. The ligands and complexes were tested for inhibition of E. coli, Staphylococcus aureus and Bacillus subtilis biological activity, ligands and complexes showed some biological activity, of which the strongest activity of Cu complexes, indicating that with the The biological activity of the substance is related to the metal.