The coordination compounds of composition [VO(HL1,2)2B] (I–IV) (where B = imidazole (C3H4N2) and benzimidazole (C7H6N2); HL1: C6H5OCH2C(O)NHO− (phenoxyacetohydroxamate), HL2: C6H5CH=CHC(O)NHO− (cinnamohydroxamate) have been synthesized from the reactions of [VO(HL1,2)2] with equimolar amounts of imidazole and benzimidazole in ethanol. The compounds have been characterized by elemental analyses, molar conductivity, magnetic measurements, IR, UV–vis, ESR, and FAB mass spectral studies. The spectral studies and molecular modeling dynamics suggest a distorted octahedral geometry around vanadium in coordination compounds. The antibacterial and antifungal activities of the newly synthesized coordination compounds, parent complexes, and respective potassium hydroxamate ligands have been screened in vitro against three bacterial strains viz. E. coli, S. aureus, and B. subtilis and two fungal strains viz. C. albicans and A. niger. The MIC values of newly synthesized coordination compounds have shown enhanced activity over parent complexes and respective potassium hydroxamate ligands. The cytotoxicity of the coordination compounds was studied on mammalian transformed cell line Hep2C, a derivative of human cervix carcinoma HeLa cells by MTT assay.
组成为[VO(HL1,2)2B](I-IV)的配位化合物(其中 B =
咪唑(
C3H4N2)和
苯并咪唑(
C7H6N2);HL1:C6H5OCH2C(O)NHO-(苯氧乙酰羟
肟酸酯),H
L2:VO(HL1,2)2] 与等摩尔量的
咪唑和
苯并咪唑在
乙醇中的反应合成了 C6H5CH=CHC(O)NHO- (肉桂羟
肟酸酯)。化合物的表征包括元素分析、摩尔电导率、磁性测量、红外光谱、紫外-可见光谱、等效串联质谱和 FAB 质谱研究。光谱研究和分子模型动力学表明,配位化合物中的
钒周围存在扭曲的八面体几何结构。对新合成的配位化合物、母体配合物和各自的羟基
氨基甲酸酯
钾配体的抗菌和抗真菌活性进行了体外筛选,分别针对三种细菌菌株(大肠杆菌、
金黄色葡萄球菌和枯草杆菌)和两种真菌菌株(白僵菌和黑僵菌)。新合成配位化合物的 MIC 值比母体配合物和各自的羟基
氨基甲酸酯
钾配体的活性更高。通过 M
TT 试验研究了配位化合物对哺乳动物转化
细胞系 Hep2C(人类宫颈癌 HeLa 细胞的衍
生物)的细胞毒性。