摘要
应用循环伏安法研究了铕(Eu(Ⅲ))-邻菲罗啉(Phen)-苯并咪唑(BIM)三元配合物[Eu(Ⅲ)(Phen)(BIM)]Cl3·2H2O在铂盘工作电极上的电化学行为.在-1.0~0.2V(vs.SCE),以HAc—NaAc(pH≈6)缓冲溶液为底液时,配合物出现一对氧化还原峰.对不同浓度配合物的研究结果表明,其还原峰与浓度成正比.通过将配合物与所含各配体及中心金属离子的电化学行为比较,三元配合物的电化学活性中心为Eu^3+.
The electrochemical properties of Eu (Ⅲ)-1, 10-Phenanthroline-benzimidazole ternary complex [Eu(Ⅲ)(Phen)(BIM)]Cl3·2H2O on platinum working electrode was characterized with cyclic voltammetry(CV). There was a electrochemical reaction on the plalium working electrode in the HAc-NaAc(pH≈6) buffer solution between -1.0 - 0. 2(vs. SCE). The test was also carried out in complex solution of different concentrations. The results showed the strength of the cathodic peak in proportion to the solution concentration. Comparing to the electrochemical behavior of the complex and the ligands and central metal ion, the electrochemical active reaction center is Eu(Ⅲ) in ternary complex.
出处
《天津师范大学学报(自然科学版)》
CAS
北大核心
2009年第3期43-45,共3页
Journal of Tianjin Normal University:Natural Science Edition
基金
湖北省教育厅重点科研项目(D20082202)
湖北师范学院应用研究项目(2007E02)