摘要
以EuCl3.6H2O,谷氨酸(Glu)和苯并咪唑(BIM)为原料,在乙醇介质中于60℃反应6 h合成了新型的三元稀土配合物(1),其结构经UV-Vis,IR,TG-DTA,摩尔电导,化学分析和元素分析表征,确定1的化学组成为[Eu(Ⅲ)(Glu)3(BIM)]Cl3.3H2O。通过循环伏安法测定了1和EuCl3.6H2O在AcOH-AcONa缓冲溶液(pH 6)中的电化学性能,结果表明,在-0.4 V～-0.9 V,1和EuCl3.6H2O均表现出电化学活性,1的电化学活化中心是Eu3+,为准可逆体系,且还原峰电流与浓度和扫描速率的平方根呈良好的线性关系。
A novel Eu（Ⅲ）-glutamic acid-benzimidazole ternary complex,[Eu（Ⅲ）（Glu）3（BIM）]Cl3·3H2O（1）,were synthesized by the reaction of EuCl3·6H2O with L-glutamic acid（Glu） and benzimidazole（BIM） at 60 ℃ for 6 h in ethanol.The structure was characterized by UV-Vis,IR,TG-DTA,molar conductance,EDTA titration and elemental analysis.Electrochemical performance of 1 and EuCl3·6H2O were determined by cyclic voltammetry in the AcOH-AcONa buffer solution（pH 6）.The results showed that 1 and EuCl3·6H2O exhibited electrochemical activity at-0.4 V^-0.9 V.The electrochemical active center of 1 is Eu3＋.The 1 was a quasi-reversible system.And there was the direct proportion of the reduction peak current of 1 to the solution concentration and scan rate,and had a good linear relationship with concentration and square root of scan rate.
出处
《合成化学》
CAS
CSCD
北大核心
2011年第2期175-179,共5页
Chinese Journal of Synthetic Chemistry
基金
湖北省教育厅重点科研项目(D20082202)
关键词
EU2O3
三元稀土配合物
合成
电化学性质
Eu2O3
ternary rare earth complex
synthesis
electrochemical performance
