【作者】 董丽丹；

【导师】 魏长平；

【作者基本信息】 长春理工大学 ， 无机化学， 2007， 硕士

【摘要】 在本论文中，成功地合成了：（1）以柠檬酸为第一配体、1，10-菲咯啉为第二配体的单核稀土（Eu、Tb）配合物，Tb／Y、Eu／Y按不同比例混合的掺杂稀土配合物。（2）以苯甲酸为第一配体、1，10-菲咯啉为第二配体的单核稀土（Eu、Tb、Dy）配合物，掺杂Y³⁺、Dy³⁺的Eu、Tb异核掺杂稀土配合物。（3）以PMBP（1-苯基-3-甲基-4-苯甲酰基-5-吡唑啉酮）为第一配体、乙酰水杨酸为第二配体，Eu／Tb按不同比例混合的掺杂稀土配合物。 采用红外光谱和元素分析等对配合物的组成和结构进行了表征。稀土离子与第一、第二配体进行了配位，配合物的紫外吸收主要是配体的吸收，保持了π→π’电子跃迁的特征。激发和发射光谱表明，非荧光稀土离子Y³⁺的掺入能显著增强荧光稀土离子的荧光发射强度，荧光稀土离子Tb³⁺、Dy³⁺掺入到铕的荧光配合物中，能显著增强Eu³⁺的荧光发射强度。更多还原

【Abstract】 In my paper : （1） with citric acid as the first ligand and 1,10-phenanth--roline as the secondary ligand, ternary rare earth complexes with a series of different ratios of Eu/Y and Tb/Y were synthesized. （2） with benzoic acid as the first ligand and 1,10-phenanthroline as the secondary ligand, rare earth complexes doped Y³⁺ and Dy³⁺ were synthesized. （3） with PMBP as the first ligand and aspirin as the secondary ligand, ternary rare earth complexes with a sery of different ratios of Eu/Tb were synthesized.The composition and structure of the complexes were characterized by IR spectra and elemental analysis. The rare earth ions coordinated with the ligands.The ligand’s absorption resulted in the complexes’ absorption which holded the character of π→π transition. Fluorescent rare earth ions intensity to the doped Y³⁺ and Europium ions fluorescent intensity to the doped Tb³⁺ and Dy³⁺ were obviously increased by fluorescent spectra.更多还原