Synthesis, characterization, DFT studies of piperazine derivatives and its Ni(II), Cu(II) complexes as antimicrobial agents and glutathione reductase inhibitors
作者:Neslihan Özbek、Serhat Mamaş、Türkan Erdoğdu、Saliha Alyar、Kerem Kaya、Nurcan Karacan
DOI:10.1016/j.molstruc.2018.06.076
日期:2018.11
electrochemical behavior of compounds was investigated using cyclic voltammetry (CV). The density functional theory (DFT) was used for geometry optimization, HOMO and LUMO energies, HOMO–LUMO energy gap and dipole moment of the compounds. It has been observed that the calculated band gaps for complexes are much smaller than ligands. Furthermore,13C and1H NMR analyses of (1) and (2) compounds were performed at
摘要 用氯乙酸乙酯处理1,4-哌嗪,制备了1,4-哌嗪二乙酸和1,4-二乙酯(1);其结构经单晶X射线衍射分析鉴定。然后,分别合成了 1,4-哌嗪二乙酸、1,4-二酰肼 (2) 及其金属配合物 (2-Ni(II) 和 2-Cu(II))。它们的结构通过元素分析、ESI-MS、IR和NMR光谱数据表征。使用循环伏安法 (CV) 研究化合物的电化学行为。密度泛函理论 (DFT) 用于几何优化、HOMO 和 LUMO 能量、HOMO-LUMO 能隙和化合物的偶极矩。已经观察到复合物的计算带隙比配体小得多。此外,(1) 和 (2) 化合物的 13 C 和 1 H NMR 分析在 B3LYP/6-311++G(d,p) 理论水平下进行,并与实验结果进行比较。观察到的 13C 和 1H NMR 化学位移与计算的化学位移非常吻合。通过使用微量稀释和圆盘扩散方法研究了合成化合物对三种革兰氏阳性菌和三种革兰