基于邻菲咯啉的反应型三元铕配合物的合成与荧光性质

以二苯甲酰甲烷(HDBM)为第一配体,5-丙烯酰胺基-1,10-菲咯啉(Aphen)为活性第二配体,制备了新的反应型三元铕配合物Eu(DBM)3Aphen。通过元素分析、红外光谱和热分析对配合物进行了组成确定,采用紫外光谱、荧光光谱、荧光寿命和荧光量子产量研究了配合物的光物理性能。结果表明,在紫外光激发下,配合物Eu(DBM)3Aphen能发射Eu3+的特征荧光,其荧光发射强度、单色性、荧光寿命和荧光量子产率等均显著高于文献报道的丙烯酸配合物Eu(DBM)2AA的相应数值,表明配合物Eu(DBM)3Aphen不仅可作为潜在的红色发光材料,还可作为反应型的配合物,为制备具有优异发光性能的稀土聚合物提供了一条新的途径。

Synthesis and Luminescence Properties of a Reactive Ternary Europium Complex Containing 1,10-Phenanthroline

With dibenzoylmethane (HDBM) as the first ligand and 5-acrylamido-1,10-phenanthroline as the secondary ligand, a new reactive ternary europium complex, Eu(DBM)3Aphen, was prepared and characterized by elemental analysis, IR spectra and TG-DTG. Its photophysical properties were studied by using UV, luminescence spectra, lifetime and quantum yield measurements. The complex Eu(DBM)3Aphen showed characteristic luminescence of europium ions under UV excitation. Compared with the complex Eu(DBM)2AA reported in the literature, complex Eu(DBM)3Aphen exhibited much stronger luminescence intensity, higher monochromaticity, longer lifetime and higher efficiency. The results showed that the complex Eu(DBM)3Aphen would be not only a potential red-emitting material but also a reactive complex, which would provide a new way for the synthesis of rare earth polymer with outstanding luminescence properties.