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以2,4-二氯苯氧乙酸为第一配体、1,10-菲罗啉为第二配体,合成了钐、铕的二元、三元配合物。通过元素分析、EDTA络合滴定及热重分析,确定了配合物的通式为RE(DCP)3.H2O,RE(DCP)3phen(RE=Sm,Eu;DCP=2,4-二氯苯氧乙酸根;phen=邻菲罗啉);测定了配合物红外光谱、紫外光谱、荧光光谱;研究了配合物的热稳定性。结果表明,三元配合物较二元配合物稳定;Eu(DCP)3.H2O和Eu(DCP)3phen具有荧光性能。
With 2,4-dichlorophenoxyacetic acid as the first ligand and 1,10-phenanthroline as the second ligand, binary and ternary complexes of samarium and europium were synthesized. By elemental analysis, EDTA complexometric titration and thermogravimetric analysis, the complex was identified as RE (DCP) 3phen (RE = Sm, Eu; DCP = 2,4- dichlorobenzene Phenoxy = phenanthroline). The infrared spectrum, ultraviolet spectrum and fluorescence spectrum of the complex were measured. The thermal stability of the complex was also studied. The results show that the ternary complexes are more stable than the binary complexes; Eu (DCP) 3.H2O and Eu (DCP) 3phen have fluorescence properties.