A new series of Cu(II) and Ni(II) complexes of NO bidentate 4-NO$_{2}$-benzoylhydrazones: synthesis, characterization, and biological studies
作者:Hatice BAŞPINAR KÜÇÜK、Emel MATARACI KARA、Berna ÖZBEK ÇELİK
DOI:10.3906/kim-1502-122
日期:——
A series of new nickel(II) and copper(II) hydrazone complexes \textbf1--14}, containing a bidentate NO-donor hydrazone ligand, derived from 4-nitrobenzoylhydrazide and several aliphatic and aromatic aldehydes were synthesized, and their chemical structures were confirmed by means of FT-IR, UV-Vis, $^1}$H and $^13}$C NMR, mass spectral data, conductance measurements, and elemental analyses. The spectral data of the newly synthesized complexes show the formation of a 1:2 [metal:ligand] ratio. The ligands and their complexes were also investigated for their possible in vitro antimicrobial activities against \textitS. aureus}, \textitS. epidermidis}, \textitE. coli}, \textitK. pneumonia}, \textitP. aeruginosa}, \textitP. mirabilis}, \textitE. faecalis}, and \textitC. albicans}. Among the fourteen new complexes synthesized, complex Cu(L$_4})_2}$ (\textbf7}) containing a direct aromatic moiety in the ligand (HL$_7})$ was found to be most active against selected test microorganisms.
通过傅立叶变换红外光谱、紫外可见光谱、$^1}$H 和 $^13}$C NMR、质谱数据、电导测量和元素分析,合成了一系列新的镍(II)和铜(II)腙配合物。新合成配合物的光谱数据显示,[金属:配体] 的比例为 1:2。研究人员还研究了配体及其复合物对金黄色葡萄球菌、表皮葡萄球菌、大肠杆菌、肺炎双球菌、绿脓杆菌、奇异变形杆菌、粪大肠杆菌和白喉杆菌的体外抗菌活性。在合成的 14 种新配合物中,发现配体(HL$_7})$ 中含有直接芳香分子的配合物 Cu(L$_4})_2}$ (\textbf7})对选定的试验微生物最有效。