Preparation And Performance Of Rare Earth Doped Organic Complexes

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.