and biological properties, DNA binding propensity have also been studied. The results suggested that the two ligands and the two Ag(I) complexes bind to DNA via intercalative binding mode, and the order of the binding affinity is 1 > 2 > bbt > bmbt. Moreover, we also discovered that the complex 2 possesses significant antioxidant activity against superoxide and hydroxyl radicals.
摘要两种新的双核Ag(I)配合物,类型为[Ag2(bbt)2](pic)2·2
DMF 1和[Ag2(bmbt)2(p-
香豆酸酯)2]·2CH3OH 2(bbt = 1,3 -bis(2-benzimidazyl)-2-thiapropane; bmbt = 1,3-bis(1-methylbenzimidazol-2-yl)-2-thiapropane; pic = picrate),已通过元素分析,电导率,红外,紫外-可见光谱测量和X射线单晶衍射。结构分析表明,配合物1-2的配位环境都是具有2倍旋转对称性的双核
金属环,可以描述为扭曲的四面体几何形状。另外,在配合物1中有很强的Ag-Ag相互作用。2的显着结构特征是对
香豆酸酯的
羧酸根基团的两个氧原子之一采用单齿桥联方式连接两个Ag(I)离子。为了探索结构和
生物学性质之间的关系,还研究了DNA结合倾向。结果表明,两个
配体和两个Ag(I)配合物