Sythesis, Characterization and Studies on Fluorescence Property of Rare Earth with Complexes Phenoxy Acetic Acid and 1,10-Phenanthroline

Sythesis, Characterization and Studies on Fluorescence Property of Rare Earth with Complexes Phenoxy Acetic Acid and 1,10-Phenanthroline
　　Two series of ten solid complexes of rare earth chloride and eight different proportional co-doped solid complexes(Tb3+:Y3+) with phenoxyacetic acid and 1,10-phenanthroline have been synthesized and characterized.Elemental analysis,rare earth coordination titration and TG-DTA studies show that the complexes have the composition of RE(POA) Block Neodymium magnets aphen·1/2H2O (RE3+=Eu3+,Tb3+,Sm3+,Dy3+);Tb0.5Ln0.5(POA)3phen·1/2H2O(Ln3+=La3+、Y3+、Gd3+);Eu0.5Y0.5(POA)3phen·1/2H2O;Eu0.5La0.5(POA)3phen·1/2H2O; Eu0.5Gd0.5(POA)3phen·1/2H2O;(Tbx:Yy)(POA)3phen·1/2H2O(0.10:0.90;0.20:0.80; 0.30:0.70;0.40:0.60;0.60:0.40;0.70:0.30;0.80:0.20;0.90:0.10).The molar conductivity indicates that all the complexes are none-lectrolyte;IR http://www.999magnet.com/ spectra and 1HNMR spectra show that the ligands coordinate with RE3+ ions though the oxygen atoms of phenoxyacetic acid and phenoxy,and two nitrogen atoms of 1,10-phenanthroline. Flourescence spectra show that the Block Neodymium magnets fluorescence intensity of the series Tb3+ complexes are much higher than of the Eu3+ complexes.However,Flourescence lifetime shows that the decay time of Eu3+ complexes are longer than that of the series of Tb3+ complexes;The strongest fluorescence intensity was studied in this article according to different proportional doped rare earth ions.