Abstract Reaction of zinc chloride or zinc nitrate hexahydrate with N,N′-cyclohexane-1,2-diylidene-bis(4-fluorobenzoylhydrazide) (L) in acetonitrile and under ambient conditions, produced two different zinc(II) complexes 1 and 2 respectively, with different coordination modes and geometrical shapes. A neutral four-coordinate complex with typical tetrahedral geometry was obtained for 1, in which, the zinc atom is sited outside the bis aroyl hydrazone core. While, a cationic eight-coordinate complex with distorted dodecahedral geometry was confirmed for 2, in which, the zinc atom is surrounded by four oxygen and four nitrogen donors from two N,N′-cyclohexane-1,2-diylidene-bis(4-fluorobenzoylhydrazide) molecules. The prepared compounds were identified and their chemical structures determined using various techniques: Nuclear magnetic resonance (NMR), Infrared (IR) and Ultraviolet–visible (UV–Vis) spectroscopy, in addition to single-crystal X-ray crystallography, X-ray powder diffraction (XRD), elemental analysis, atomic absorption and molar conductivity measurements. Furthermore, the in vitro biological activity of L, 1 and 2 was studied against some selected bacterial strains: Bacillus subtilis and Staphylococcus aureus as gram positive bacteria, and Escherichia coli and Salmonella typhimurium as gram negative bacteria. The study revealed that the prepared compound have shown a differentiated biological activity against these bacteria depending on their structural features and lipophilic nature.

中文翻译：

---

基于锌盐效应的N,N'-环己烷-1,2-二亚基-双(4-氟苯甲酰肼)两种不同锌(II)配合物的合成及X射线晶体结构

摘要 氯化锌或六水合硝酸锌与 N,N'-环己烷-1,2-二亚基-双(4-氟苯甲酰肼) (L) 在乙腈和环境条件下反应，生成两种不同的锌 (II) 配合物 1 和 2分别具有不同的协调模式和几何形状。对于 1，获得了具有典型四面体几何形状的中性四配位配合物，其中锌原子位于双芳酰基腙核的外部。同时，证实了具有扭曲十二面体几何形状的阳离子八配位配合物 2，其中锌原子被来自两个 N,N'-环己烷-1,2-二亚基-双 (4) 的四个氧和四个氮供体包围-氟苯甲酰肼）分子。使用各种技术鉴定制备的化合物并确定其化学结构：核磁共振 (NMR)、除了单晶 X 射线晶体学、X 射线粉末衍射 (XRD)、元素分析、原子吸收和摩尔电导率测量外，还包括红外 (IR) 和紫外-可见 (UV-Vis) 光谱。此外，还研究了 L、1 和 2 对一些选定细菌菌株的体外生物活性：枯草芽孢杆菌和金黄色葡萄球菌作为革兰氏阳性细菌，大肠杆菌和鼠伤寒沙门氏菌作为革兰氏阴性细菌。研究表明，制备的化合物对这些细菌显示出不同的生物活性，这取决于它们的结构特征和亲脂性。原子吸收和摩尔电导率测量。此外，还研究了 L、1 和 2 对一些选定细菌菌株的体外生物活性：枯草芽孢杆菌和金黄色葡萄球菌作为革兰氏阳性细菌，大肠杆菌和鼠伤寒沙门氏菌作为革兰氏阴性细菌。研究表明，制备的化合物对这些细菌显示出不同的生物活性，这取决于它们的结构特征和亲脂性。原子吸收和摩尔电导率测量。此外，还研究了 L、1 和 2 对一些选定细菌菌株的体外生物活性：枯草芽孢杆菌和金黄色葡萄球菌作为革兰氏阳性细菌，大肠杆菌和鼠伤寒沙门氏菌作为革兰氏阴性细菌。研究表明，制备的化合物对这些细菌显示出不同的生物活性，这取决于它们的结构特征和亲脂性。