稀土蒽甲酰丙酮配合物的合成及发光性能研究.pdfVIP

Abstract In order to obtain the rare earth complexes with high luminous efficiency, a kind of new β-diketone ligand 1-(9-anthracenyl)-3-methyl-1,3-propanedione (EN) was designed and synthesized. Two new binary rare earth complexes and four new ternary rare earth complexes were obtained by the reaction of rare earth chloride with the new β-diketone or the new β-diketone and 1,10-Phenanthroline(Phen) ligands. The fluorescence properties of the rare earth complexes and the new β-diketone were characterized by means of fluorescent spectra. The work in this dissertation is as follows: 1. The new β-diketone ligand， 1-(9-anthracenyl)-3-methyl-1,3-propanedione (EN) ， was synthesized by the Claisen condensation reaction. The composition and structure of the new β-diketone ligand were characterized by elemental analysis, FT-IR, 1 HNMR. 2. Two binary rare earth complexes RE(EN) ·2H O were synthesized by the reaction 2 2 of rare earth chloride RECl (RE=Eu3+,Yb3+ ) with 1-(9-anthracenyl)-3-methyl-1,3- 3 propanedione (EN) in alcohol solution. The composition and heat stability of the complexes were determined by means of elemental analysis, FT-IR and TG-DTA. 3. Four ternary rare earth complexes RE(EN) Phen·nH O were synthesized by the 2 2 reaction of rare earth chloride RECl3 (RE=Eu3+,Tb3+,Sm3+,Yb3+) with 1,10-Phenanthroline(Phen) and 1-(9-anthracenyl)-3-methyl-1,3-propanedione (EN) in alcohol solution. The composition and heat stability of the complexes were characterized by means of elemental analysis, FT-IR and TG-DSC. 4. Fluorescence pr