Synthesis, Antibacterial Activity and DFT Calculations of Some Thiazolidine-4-Carboxylic acid Derivatives and Their Complexes with Cu(II), Fe(II) and VO(II)
作者:Firas Nawar、Rafid Al-Asadi、Dawood Abid
DOI:10.21608/ejchem.2019.16096.1986
日期:2020.1.1
respectively, which can be characterised based on spectral and physical data. Synthesis of complexes with the formula ML2.XH2O is done via the reaction of L1 and L2 with Cu(II), Fe(II) and VO(II) in molar ratio of 1:2 pertaining to metal to ligand. Based on mass and UV/visible spectra, IR, flam atomic absorption, magnetic susceptibility as well as thermal analysis of metal complexes, we can conclude that
L-半胱氨酸与2-羟基萘甲醛和2-羟基苯甲醛的反应生成新的双齿配体(2R,4R)-2-(2-羟基萘-1-基)噻唑烷-4-羧酸(L2)和(2R,可以分别基于光谱和物理数据表征4R)-2-(2-羟基苯基)噻唑烷-4-羧酸(L1)。通过L1和L2与摩尔比为1:2的Cu(II),Fe(II)和VO(II)的金属与配体的反应,可以完成通式为ML2.XH2O的配合物的合成。根据质谱和紫外/可见光谱,红外,火焰原子吸收,磁化率以及金属配合物的热分析,我们可以得出结论,配体表现为双齿,有助于鉴定与配合物有关的适当结构。然后,进行合成化合物的筛选以确定其对铜绿假单胞菌和表皮链球菌的抗菌活性。所有化合物均显示出生物活性,其中铁配合物具有最高的效率。在B3LYP理论水平上的密度泛函理论用于计算与分子结构以及配体及其相关络合物的能量有关的几何优化。理论计算的观察结果与实验结果一致。在B3LYP理论水平上的密度泛函