Abstract

New phenolate and azide bridged tetranuclear zinc(II) complex [Zn₄Br₂L₂(μ_1,1-N₃)₂] (1) and new mononuclear copper(II) complex [CuL] (2), where L is the dianionic form of N,N′-bis(5-methylsalicylidene)-1,3-propanediamine (H₂L), are synthesized and characterized. The complexes are characterized by elemental analyses, IR, UV-Vis spectra, molar conductivity, and single crystal X-ray diffraction. X-ray analysis indicates that the Zn atoms in complex 1 are in tetrahedral and square pyramidal coordinations, and the Cu atom in complex 2 is in a tetrahedral distorted square planar coordination. In the crystal structures of the complexes, molecules are stacked through π⋯π interactions. The complexes are assayed for antibacterial activities against three gram-positive bacterial strains (E. cloacae, E. cloacae, and St. faecalis) and three gram-negative bacterial strains (St. faecalis, P. aeruginosa, and E. cloacae) by the MTT method.

中文翻译：

---

N,N'-双(5-甲基水杨亚烷基)-1,3-丙二胺衍生的锌(II)和铜(II)络合物的合成、X射线晶体结构和抗菌活性

摘要

新的酚盐和叠氮化物桥连四核锌 (II) 配合物 [Zn ₄ Br ₂ L ₂ (μ _1,1 -N ₃ ) ₂ ] ( 1 ) 和新的单核铜 (II) 配合物 [CuL] ( 2 )，其中 L 是合成并表征了N , N '-双(5-甲基水杨亚基)-1,3-丙二胺(H ₂ L)的双阴离子形式。通过元素分析、IR、UV-Vis 光谱、摩尔电导率和单晶 X 射线衍射表征复合物。X射线分析表明配合物1中的Zn原子呈四面体和方锥配位，配合物1中的Cu原子2处于四面体扭曲方形平面配位中。在复合物的晶体结构中，分子通过 π⋯π 相互作用堆叠在一起。复合物对三种革兰氏阳性细菌菌株（阴沟肠杆菌、阴沟肠杆菌和粪肠球菌）和三种革兰氏阴性细菌菌株（粪肠球菌、铜绿假单胞菌和阴沟肠杆菌）的抗菌活性进行了测定。MTT法。