Multiple heating rate kinetic parameters, thermal, X-ray diffraction studies of newly synthesized octahedral copper complexes based on bromo-coumarins along with their antioxidant, anti-tubercular and antimicrobial activity evaluation
作者:Ketan S. Patel、Jiten C. Patel、Hitesh R. Dholariya、Kanuprasad D. Patel
DOI:10.1016/j.saa.2012.05.057
日期:2012.10
Series of new Cu(II) complexes were synthesized by classical thermal technique. The biologically potent ligands (L) were prepared by refluxing 6-brom 3-acetyl coumarin with aldehydes in the presence of piperidine in ethanol. The Cu(II) complexes have been synthesized by mixing an aqueous solution of Cu(NO(3))(2) in 1:1 molar ratios with ethanolic bidentate ligands and Clioquinol. The structures of
通过经典的热技术合成了一系列新的Cu(II)配合物。通过在乙醇中的哌啶存在下使6-溴3-乙酰基香豆素与醛回流,可制备具有生物活性的配体(L)。Cu(II)配合物已通过将Cu(NO(3))(2)的水溶液以1:1摩尔比与乙醇二齿配体和Clioquinol混合来合成。分别通过元素分析,FT-IR,(1)H NMR,(13)C NMR,质谱和粉末X射线衍射研究对配体及其铜配合物的结构进行了研究和确认。通过热重分析,差示热重分析,差示扫描量热法,电子光谱和磁测量方法研究了新合成的混合配体Cu(II)配合物的热行为。在不同的加热速率(2.5-20°C min(-1))下对Cu(II)配合物进行DSC实验的动态扫描。通过基辛格和小泽的方法获得的所有复合物的第二步降解动力学参数均一致。在这些研究的基础上,很明显,通过OO和ON供体系统,配体以一元二齿模式与金属原子配位。因此,已经提出了用于金属配合物的六配