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合成了一种新型三足席夫碱和它的四种稀土配合物,通过元素分析、红外光谱、紫外光谱、差热-热重、核磁共振和摩尔电导率对配合物进行了表征,推测了配合物的可能结构。应用紫外可见光谱法和电化学方法对配合物与ct-DNA之间的相互作用进行了研究,结果表明,配合物与ct-DNA之间存在插入作用;配合物CV测试随扫描速度增加,其氧化峰电位Ep发生正移,氧化峰电流Ip随扫描速度的增加呈线性增加趋势,并且Ip与扫描速率平方根(v1/2)呈良好线性关系,表明配合物在GCE上的电化学氧化反应是一个受扩散步骤所控制的过程。
A novel tri-staged Schiff base and four rare earth complexes were synthesized. The complexes were characterized by elemental analysis, IR, UV, DTA-TG, NMR and molar conductivity. The possible structure of the complex. The interaction between the complex and ct-DNA was studied by UV-Vis spectroscopy and electrochemical method. The results showed that there was an insertion between the complex and ct-DNA. The CV test of the complex increased with the increase of scanning speed. The oxidation peak potential Ep was positively shifted, and the oxidation peak current Ip increased linearly with the increase of scanning speed. The linear relationship between Ip and the square root of the scanning rate (v1 / 2) showed that the electrochemical oxidation reaction of the complex on GCE was A process controlled by the diffusion step.