【作者】 王艳； 赵永亮；

【Author】 WANG Yan ZHAO Yong-liang (The College of Chemistry and Chemical Engineering,Inner Mongolia University,Hohhot 010021,China)

【机构】 内蒙古大学化学化工学院；

【摘要】 分别合成了以 Sm、Eu、Tb 和 Dy 为中心,以苯氧乙酸（HPOA）和邻菲罗啉（phen）为配体的4种稀土三元配合物,用 C、H、N 元素分析、稀土络合滴定确定了配合物的组成为 RE·L₃L′·1/2H₂O（L=C₆H₅OCH₂COOH L′=phen）; 测定了配合物的红外光谱、紫外光谱和荧光光谱。测定结果表明,配合物中的 RE³⁺离子与苯氧乙酸中羧基的一个氧原子和苯氧基的氧原子及邻菲罗啉中的氮原子配位成键:铕、铽配合物具有良好的荧光性能,铽配合物发光最强。更多还原

【Abstract】 Four complexes of rare earth（RE=Sm,Eu,Tb,Dy）with phenoxyacetic acid（HPOA）and 1,10-phenanthroline were synthesized.The chemical formula of the complexes was REL₃L′·1/2H₂O（L=C₆H₅OCH₂COOH L′=phen）determined by elemental analysis and rare earth complexometic tritration.IR spectra,UV and fluorescence spectra have been studied.The results indicate that the rare earth ions are bounded with the oxygen atoms of phenoxyacetic acid and phenoxy,and with the N atoms of 1,10-phenanthroline.Fluorescence spectra of the complexes are determined at room temperature,the date of terbium complex is the best.lt shows that the lowest excitation state energy level of Tb³⁺ion with the triplet state exergy of the lignd phenoxyacetic acid match well each other,the absorbing energy of the ligand may effectively transferred to Tb³⁺ion.更多还原