Molecular structures, spectral, electrochemical, DFT and antioxidant activities of copper(II) complexes with NNO donor Schiff base ligand
作者:Yogendra Pratap Singh、Satish Kumar Patel
DOI:10.1016/j.molstruc.2020.129457
日期:2021.3
spectroscopy. The single crystalstructures were solved by the X-ray diffraction technique. In complex 1, copper ion is in a distorted octahedral environment. The geometry of copper(II) in complex 2 is distorted square pyramidal (τ = 0.201). The mono deprotonated, HL ligandact as a tridentate to a copper(II) ion. On the basis of density functional theory (DFT) calculation, the electronic excitations involve
摘要 [Cu(L)(acpy)]ClO4 1 和[Cu(L)(NO3)] 2 [其中L = N'-[(E)-苯基( pyridin-2-yl)methylidene]噻吩-2-carbohydrazide 和 acpy = 2,6-Diacetylpyridine] 已通过元素分析、UV-vis、FTIR、电化学技术(CV 和 DPV)和电子顺磁共振 (epr) 光谱完成. 单晶结构是通过 X 射线衍射技术解决的。在配合物 1 中,铜离子处于扭曲的八面体环境中。配合物 2 中铜 (II) 的几何形状是扭曲的方形金字塔 (τ = 0.201)。单去质子化的 HL 配体作为铜 (II) 离子的三齿。在密度泛函理论(DFT)计算的基础上,电子激发涉及主要从金属配体键合(主要是占主导地位的 Cu dxy 特征内的 α-LUMO 到 α-LUMO+1)的转变。多晶样品的 Epr 光谱显示出铜 (II)
Syntheses, single crystal structures, DFT and antioxidant superoxide dismutase studies of some new mono-/binuclear copper(II) complexes
作者:R.N. Patel、Yogendra Pratap Singh、Yogendra Singh、Ray J. Butcher、Jerry P. Jasinski
DOI:10.1016/j.poly.2017.03.054
日期:2017.6
crystal X-ray structures of 1, 2, 3 and 5 were determined. X-ray single crystal analyses reveal that complex 1 is six coordinated while complex 2 is a penta coordinatedcomplex. Complex 3 is pseudo binuclear while 4 and 5 are binuclearcomplexes. Intermolecular π…π stacking interactions could be detected in the solid medium and classical H-bonding interactions lead to infinite 1D chains and to an infinite
Interaction of pseudohalides copper(II) complexes of hydrazide ligand with DNA: synthesis, spectral characterization, molecular docking simulations and superoxide dismutase activity
作者:Abhay K. Patel、Neetu Patel、R. N. Jadeja、S. K. Patel、R. N. Patel、S. Kumar、R. Kapavarapu
DOI:10.1080/24701556.2022.2050755
日期:——
half-field signal of complexes 2–4 suggested the intra exchanged-coupled systems. The electrochemical nature of all complexes was examined using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The room temperature magnetic moment (μeff = 1.47–1.63 BM) for binuclear complexes reveals the presence of weak antiferromagnetic spin-exchange interactions between copper(II) ions. The geometrical