evidenced from UV–vis and EPR studies. All the complexes showed stability for almost 72 h in biologically relevant solutions. The reducing ability of the copper(II) complexes in the presence of ascorbic acid was analyzed by UV–vis and cyclic voltammetry techniques, which indicates the reduction of the copper(II) to a copper(I) center, and possible interaction within the cells. An in vitro antiproliferative
八个杂
镍(II)和
铜(II)的类型[M(L的配合物1-4)(NAP)2 ](1 - 8),其中,L 1-4 = 2-(1-(4-取代的苯基)合成并表征了亚乙基)
肼甲
硫基酰胺,nap =
萘普生,M = Ni(II)或Cu(II)。紫外可见和EPR光谱研究表明,
金属(II)离子周围的八面体几何形状失真。配合物的循环伏安图1 - 8显示的不可逆的单电子转移过程在阴极区域(Ë PC = -0.66至-1.43 V)和
镍(II)配合物1 - 4在阳极区域(显示不可逆的单电子氧化过程Ê PA = 0.75〜1.10 V)。将所得到的磁矩值(1.82-1.93μ乙)为
铜(II)配合物5 - 8表示八面体几何形状产生了畸变,EPR研究进一步证明了这一点。紫外-可见和EPR研究表明,复合物的几何形状在固相和固溶相中均得以保留。所有复合物在
生物学相关溶液中均显示了将近72小时的稳定性。通过紫外可见和循环伏安技