Department of Chemistry, Jayaraj Annapackiam College for Women, Periyakulam 625601, India.
Spectrochim Acta A Mol Biomol Spectrosc. 2012 Feb 15;87:155-62. doi: 10.1016/j.saa.2011.11.031. Epub 2011 Nov 23.
Tridentate chelate complexes of Co(II), Ni(II), Cu(II) and Zn(II) have been synthesized from the chalcone based ligands 2-[1-(3-(1H-imidazol-1-yl)propylimino)-3-(phenylallyl)]phenol(HL(1)), 2-[1-(3-(1H-imidazol-1-yl)propylimino)-3-p-tolylallyl]phenol(HL(2)), 2-[1-(3-(1H-imidazol-1-yl)propylimino)-3-4-nitrophenylallyl]phenol(HL(3)). Microanalytical data, UV-vis spectrophotometric method, magnetic susceptibility measurements, IR, 1H NMR, Mass, and EPR techniques were used to characterize the structure of chelates. The electronic absorption spectra and magnetic susceptibility measurements suggest a distorted square planar geometry for the copper(II) ion. The other metal complexes show distorted tetrahedral geometry. The coordination of the ligands with metal(II) ions was further confirmed by solution fluorescence spectrum. The antimicrobial activity of the ligands and metal(II) complexes against the species Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Candida albigans and Aspergillus niger has been carried out and compared. The electrochemical behavior of copper(II) complex is studied by cyclic voltammetry.
三齿螯合配合物的 Co(II), Ni(II), Cu(II) 和 Zn(II) 已经从基于查耳酮的配体 2-[1-(3-(1H-咪唑-1-基)丙基亚氨基)-3-(苯基烯丙基)]苯酚(HL(1)), 2-[1-(3-(1H-咪唑-1-基)丙基亚氨基)-3-对甲苯烯丙基]苯酚(HL(2)), 2-[1-(3-(1H-咪唑-1-基)丙基亚氨基)-3-4-硝基苯基烯丙基]苯酚(HL(3))中合成。使用微量分析数据、紫外可见分光光度法、磁化率测量、IR、1H NMR、质谱和 EPR 技术来表征螯合物的结构。电子吸收光谱和磁化率测量表明铜(II)离子具有扭曲的正方形平面几何形状。其他金属配合物显示出扭曲的四面体形几何形状。配体与金属(II)离子的配位进一步通过溶液荧光光谱得到证实。对配体和金属(II)配合物对铜绿假单胞菌、大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌、白色念珠菌和黑曲霉的种属的抗菌活性进行了研究和比较。通过循环伏安法研究了铜(II)配合物的电化学行为。
