2-Chloro-N-((5-chloropyridine-2-yl)carbamothioyl)benzamide and its Co(II), Ni(II) and Cu(II) metal complexes
作者:Tuncay Yeşilkaynak
DOI:10.1007/s10973-015-5221-9
日期:2016.5
A novel thiourea derivative 2-chloro-N-((5-chloropyridine-2-yl)carbamothioyl)benzamide ligand (HL) and its transition metal complexes (ML2; M: Co2+, Ni2+ and Cu2+) were synthesized and characterized by elemental analysis, FTIR and 1H-NMR techniques. The HL was also characterized by single-crystal X-ray diffraction method. It crystallizes in the monoclinic space group P 1 21/c 1, with Z = 4, and unit-cell parameters, a = 6.7140(15) Å, b = 13.667(3) Å, c = 15.524(4) Å. Thermal decomposition of the complexes has been studied by TG/TDA combined system. Cyclic voltammetry technique was utilized to understand the electrochemical behavior of the complexes. Furthermore, the complexes were screened for their antioxidant activities which were measured by using the DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid)) assays.
合成了一种新型硫脲衍生物 2-氯-N-((5-氯吡啶-2-基)氨基硫酰基)苯甲酰胺配体(HL)及其过渡金属配合物(ML2;M:Co2+、Ni2+ 和 Cu2+),并通过元素分析、傅立叶变换红外光谱和 1H-NMR 技术对其进行了表征。HL 还通过单晶 X 射线衍射法进行了表征。它在单斜空间群 P 1 21/c 1 中结晶,Z = 4,单胞参数为 a = 6.7140(15) 埃,b = 13.667(3) 埃,c = 15.524(4) 埃。通过 TG/TDA 组合系统研究了配合物的热分解。利用循环伏安技术了解了配合物的电化学行为。此外,还利用 DPPH(2,2-二苯基-1-苦基肼)和 ABTS(2,2′-偶氮二异-(3-乙基苯并噻唑啉-6-磺酸))测定法对复合物的抗氧化活性进行了筛选。