稀土均苯四甲酸配合物的合成与表征

Synthesis and characterization of the complexes of RE^(3+) with 1,2,4,5-benzenetetracarboxylic acid

目的合成4种稀土均苯四甲酸配合物RE(Hbtec).nH2O(RE=Eu,Gd,Tb,Dy),并对其性质进行表征。方法采用元素分析、红外光谱、荧光及热重等分析方法。结果合成了4种配合物,并通过性质表征对其进行了验证。元素分析和红外光谱确定了配合物的组成;荧光分析结果发现了均苯四甲酸铕和铽的良好荧光性;热重分析在进一步验证组成更了解了它的热分解机理。结论为探索新材料,新能源提供了重要实验依据。

Aim To syntheize and characterize the four complexes RE（Hbtec）·nH2O（RE=Eu,Gd,Tb,Dy）.Methods Elemental analysis,IR,Fluorescence spectrum and TG-DTG.Results The four complexes were produced and characterized.Conclusion Their compositions were determined by elemental analysis and IR.They indicate that the complexes benzenetetra-carboxylate euro-pium（Ⅲ） and terbium（Ⅲ） have excellent luminescent properties by FS.The thermal analysis gave further information about the complex compositions and provided possible mechanisms for complex decomposotions.