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合成了3,5-二碘水杨醛缩邻苯二胺席夫碱合镍(Ⅱ)配合物.通过核磁共振、元素分析、紫外光谱、红外光谱及摩尔电导对结构进行了表征,用Gaussian03程序优化计算,确定配合物的结构为Ni(Ⅱ)L.通过紫外光谱、粘度法及与溴化乙锭(EB)的竞争实验,研究了配合物与小牛胸腺DNA(ct-DNA)的作用情况.结果显示,配合物与DNA作用时,紫外吸收发生明显的减色效应,其结合常数为Kb=1.129×105 L/mol;EB-DNA体系的荧光强度随配合物的加入迅速减弱;配合物的加入使ct-DNA的粘度增加.这些结果表明,该化合物以插入式与ct-DNA键合.并用打孔法测试了配合物对藤黄微球菌(M.luteus)的抑制作用.

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