【摘要】 合成了铋(III)苯乙酸-1,10-邻菲罗啉[Bi2(PPA)6·(Phen)2](HPPA=苯乙酸(C8H7O2),Phen=l,10-邻菲罗啉(C12H8N2))三元配合物,并通过元素分析和红外(IR)光谱对其进行了表征,用单晶X-射线衍射测定了配合物的晶体结构.配合物属于三斜晶系,P-1空间群,a=0.9100(6)nm,b=1.2617(8)nm,c=1.3324(9)nm,α=89.757(8)°,β=87.277(8)°,γ=81.155(8)°,V=1.5099(17)nm3,Dc=1.748g·cm-3,μ=5.890mm-1,Z=1,F(000)=780,残差因子R1=0.0484,wR2=0.1090[I>2σ(I)],S=1.002.标题化合物为双核铋(III)配合物,金属中心Bi(III)原子与三个苯乙酸根(PPA)中的6个氧原子、一个1,10-邻菲罗啉分子中的两个氮原子和一个桥连氧原子进行配位,形成九配位的扭曲三帽三方柱配位十四面体,围绕铋原子的价键总数VBi(1)=2.897,两个Bi(III)原子通过两个桥连氧原子连结成中心对称的分子,Bi…Bi间距离为0.4469(2)nm.初步抑菌试验结果显示,配合物对大肠杆菌(E.Coli)、金黄色葡萄球菌(S.Aureus)、枯草芽孢杆菌(B.Subtilis)表现出相似且良好的抑菌效果.更多还原

【Abstract】 A bismuth(III) complex [Bi2(PPA)6·(Phen)2] (HPPA = phenylacetic acid; Phen =1,10-phenanthroline) was synthesized and characterized by elemental analysis and infrared (IR) spectros-copy, its crystal structure was determined by single crystal X-ray diffraction. The crystal of bismuth(III) complex belongs to triclinic system with space group P-1, a=0.9100(6) nm, b=1.2617(8) nm, c=1.3324(9) nm, α=89.757(8)°, β=87.277(8)°, γ=81.155(8)°, V=1.5099(17) nm3, Dc=1.748 g·cm-3, μ=5.890 mm-1, Z=1, F(000)=780, residual factors R1=0.0484, wR2=0.1090 [I>2σ(I)], S=1.002. The com-plex is a binuclear bismuth(III) compound, and every bismuth(III) atom is nine-coordinated by six O atoms from three ligands (PPA) and two N atoms from one ligand (Phen) and one bridged O atom, and the coordi-nation polyhedron around the bismuth(III) atom can be best described as a distorted tricapped trigo-nal-prismatic tetrakaidecahedron geometry, the valence sum of around Bi atom VBi(1)=2.897. The distance of Bi…Bi is 0.4469(2) nm. The complex has a good effect against E. Coli, S. Aureus and B. Subtilis.更多还原