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合成了2种新的N-甲基-N-苄基二硫代氨基甲酸锑[Sb(MeBnNCS2)3](1)和铋[Bi(MeBnNCS2)3](2)配合物。通过元素分析、红外光谱、1H NMR、热重对其进行表征,并用X-射线单晶衍射测定了晶体结构。配合物1和2均属于单斜晶系,P21/c空间群。配合物1的晶胞参数为:a=0.955 1(7)nm,b=1.357 5(10)nm,c=2.468 1(17)nm,β=104.01(2)°,Z=4,V=3.105(4)nm3,Dc=1.520 g·cm-3,F(000)=1 440,μ=1.314 mm-1,最终偏离因子R1=0.033 9,wR2=0.083 2,S=1.010;配合物2的晶胞参数为:a=1.339 0(6)nm,b=0.997 5(5)nm,c=2.426 1(5)nm,β=98.433(7)°,Z=4,V=3.205(2)nm3,Dc=1.653 g·cm-3,F(000)=1 568,μ=5.912 mm-1,最终偏离因子R1=0.039 8,wR2=0.086 4,S=1.089。在这2个配合物中,中心金属离子M(Ⅲ)与来自3个配体中的6个硫原子配位,配合物1形成6配位的畸变的八面体构型;配合物2则形成6配位的畸变的五角锥构型。在配合物2中,分子之间又通过Bi…S弱相互作用构成二聚体结构。利用琼脂扩散法测试了配合物的抑菌活性,结果表明配合物1对4种受试菌株具有较强的抑菌活性。
Two new complexes of antimony (Sb (MeBnNCS2) 3] (1) with bismuth [Bi (MeBnNCS2) 3] (2) were synthesized. Its structure was characterized by elemental analysis, IR, 1H NMR and TG. The crystal structure was determined by single crystal X-ray diffraction. Complex 1 and 2 belong to the monoclinic system, P21 / c space group. The lattice parameters of complex 1 are as follows: a = 0.955 1 (7) nm, b = 1.357 5 (10) nm, c = 2.468 1 3.105 (4) nm3, Dc = 1.520 g · cm-3, F (000) = 1 440, μ = 1.314 mm-1 and the final deviation factor R1 = 0.033 9, wR2 = 0.083 2, S = The lattice parameters of a = 1.339 0 (6) nm, b = 0.997 5 (5) nm, c = 2.426 1 (5) nm, β = 98.433 (7) °, Z = 4 and V = 3.205 ) nm3, Dc = 1.653 g · cm-3, F (000) = 1 568, μ = 5.912 mm-1, the final deviation factor R1 = 0.039 8, wR2 = 0.086 4, S = 1.089. Among the two complexes, the central metal ion M (Ⅲ) coordinated with 6 sulfur atoms from the three ligands, and complex 1 formed a distorted octahedral configuration with 6 coordination. Complex 2 formed 6 coordination of the pentagonal pentagon configuration. In complex 2, the weak interaction between molecules through Bi ... S constitutes a dimeric structure. The antibacterial activity of the complex was tested by agar diffusion method. The results showed that the complex 1 has strong antibacterial activity against four tested strains.