Synthesis, spectroscopic characterization, DFT and antibacterial studies of newly synthesized cobalt(II, III), nickel(II) and copper(II) complexes with salicylaldehyde N(4)-antipyrinylthiosemicarbazone
作者:Ayman K. El-Sawaf、Maged A. Azzam、Amr M. Abdou、El Hassane Anouar
DOI:10.1016/j.ica.2018.08.013
日期:2018.11
bazone (H2L) and its complexes of Co(III, II), Ni(II) and Cu(II) have been prepared and characterized. Elemental analyses, molar conductivities, magnetic measurements, spectral (IR, UV–vis, 1H and 13C NMR and ESR) and thermogravimetric studies have been used to characterize the complexes. The infrared spectra show that the thiosemicarbazone ligand behaves as tridentate ligand (ONS), either in the thione
摘要制备并表征了水杨醛N(4)-抗吡啶基硫代半脲(H2L)及其Co(III,II),Ni(II)和Cu(II)的配合物。元素分析,摩尔电导率,磁测量,光谱(IR,UV-vis,1H和13C NMR和ESR)和热重研究已用于表征配合物。红外光谱表明,硫半脲配体表现为三齿配体(ONS),呈硫酮形式或硫醇基形式。根据光谱和磁学性质,提出了用于配合物的立体化学。连同起始配体的实验光谱数据一起,使用最新的密度泛函理论(DFT)在气相和溶剂相中获得了其相应的预测值。获得的结果表明,计算的光谱数据与实验光谱数据之间具有相对较好的相关性。与作为标准抗生素的恩诺沙星相比,某些复合物对分别代表革兰氏阳性和革兰氏阴性细菌的金黄色葡萄球菌和大肠杆菌具有抗菌活性。