Structures, redox behavior, antibacterial activity and correlation with electronic structure of the complexes of nickel triad with 3-(2-(alkylthio)phenylazo)-2,4-pentanedione
作者:Mrinal Kanti Paira、Tapan Kumar Mondal、Durbadal Ojha、Alexandra M.Z. Slawin、Edward R.T. Tiekink、Amalesh Samanta、Chittaranjan Sinha
DOI:10.1016/j.ica.2011.01.049
日期:2011.5
3-(2-(Alkylthio)phenylazo)-2,4-pentanedione (HL), an O, N, S donor ligand, is used for the synthesis of Ni(II), Pd(II) and Pt(II) complexes. The spectroscopic (IR, UV–Vis, and NMR) data determine the structure. The single crystal X-ray diffraction measurement of [Ni(L)2] and [Pt(L)Cl] has confirmed the structures. Coulometric oxidation of [Ni(L)2] and EPR spectra thereof show formation of Ni(III) state
O(N)S供体配体3-(2-(烷硫基)苯基偶氮)-2,4-戊二酮(HL)用于合成Ni(II),Pd(II)和Pt(II)配合物。光谱数据(IR,UV-Vis和NMR)确定了结构。[Ni(L)2 ]和[Pt(L)Cl]的单晶X射线衍射测量已证实其结构。[Ni(L)2 ]的库仑氧化和其EPR光谱表明形成了Ni(III)态。DFT计算已经计算出电子构型,并解释了配合物的光谱和氧化还原特性。筛选化合物及其在体外使用革兰氏阳性和革兰氏阴性细菌(抗细菌活性的枯草芽孢杆菌UC564,大肠杆菌TG1,金黄色葡萄球菌Bang25,铜绿假单胞菌C / 1/7,伤寒沙门氏菌NCTC62,副伤寒沙门氏菌NCTC A2,痢疾志贺氏菌8NCTC599 / 52,粪便链球菌S2,霍乱弧菌DN7和黄腐小球菌AGD1)。确定化合物的最小抑制浓度。讨论了所研究化合物的结构对抗菌活性的影响。