铕-邻菲咯啉衍生物-脂肪酸配合物的合成及性能

Synthesis and properties of complexes of europium with phenanthroline derivatives and fatty acids

合成2-苯基咪唑并[5,6-f]邻菲咯啉(PIP),2-(4-苯酚)咪唑并[5,6-f]邻菲咯啉(pHPIP),2-(4-甲氧基苯基)咪唑并[5,6-f]邻菲咯啉(pMPIP)和2-(4-甲酰基苯基)咪唑并[5,6-f]邻菲咯啉(pAPIP)等4种邻菲咯啉衍生物,并分别以其为第一配体,选择丁酸(BAH),正庚酸(HAH)和十四酸(TAH)为第二配体合成12种新的铕-邻菲咯啉衍生物-脂肪酸荧光配合物。通过EDTA配位滴定分析、元素分析、红外光谱、紫外可见光谱和热分析对配合物的组成、结构进行表征,并研究其热稳定性能;采用荧光光谱分析研究其发光性能。结果表明,目标配合物比其对应的二元配合物的荧光强度大大提高,说明第二配体脂肪酸和第一配体之间产生很好的协同效应;该类配合物有较好的热稳定性,可成为很好的光致发红光和电致发红光材料。

Four phenanthroline derivatives of 2-phenyl-imazole [5, 6-f]-（1, 10） phenanthroline, 2-（4-hydroxy-phenyl）- imazole [5, 6-f]-（1, 10） phenanthroline, 2-（4-methoxyl-phenyl）-imazole [5, 6-f]-（1, 10） phenanthroline and 2-（4-formacyl -phenyl）-imazole [5, 6-f]-（1, 10） phenanthroline were synthesized, and twelve new complexes of europium were then synthesized with these phenanthroline derivatives as the first ligand and butyric acid, n-heptanoic acid and tetradecanoic acid as the second ligand. The structure and composition of the title complexes were characterized by means of EDTA titrimetric method, elemental analysis, FT-IR and UV spectra analysis. Their thermal and luminescent properties were also investigated with thermal analysis and fluorescence spectra instruments, respectively. The results show that the luminescence intensity of the title complexes greatly increases in comparison with that of their corresponding binary complexes, this reveals the second ligands form very good synergistic effect with the first ligands. The title complexes possess excellent thermal stability properties, and are hopefully developed into fine PL and EL red materials.