铕(III)三元配合物荧光性质的研究

According to fluorescent spectra of a series of Eu(III) ternary complexes in the three solvents EtOH, DMF and CH3CN, the fluorescence is stronger in the solvent CH3CN than in the solvents EtOH and DMF, and fluorescent intensity is contrary to the affinity of three solvents with rare earth ions. Center ions emit fluorescence mainly by an intramolecular energy transfer from the broad absorbing β-diketonate TTA, BTA or BA to the chelated rare earth ions.     

铕(Ⅲ)三元配合物荧光性质的研究

利用Ｅｕ（Ⅲ）、Ｔｂ（Ⅲ）等稀土离子有机配合物发光性能作为蛋白质的荧光标记,对抗体或抗原进行微量分析是近年发展起来的免疫荧光分析的一种重要分析测试技术［１］。氟代β－二酮配合物不仅能有效提高配合物分子内能量传递,同时也减少有机配体和稀土离子非辐射跃迁能量散射,并与金属离子形成具有较强荧光的稀土配合物［２,３］。为了避免溶剂分子及水分子所引起荧光淬灭,中性配体也十分重要［４．５］。本文选用噻吩甲酰三氟丙酮（ＴＴＡ）、苯甲酰三氟丙酮（ＢＴＡ）、苯甲酰丙酮（ＢＡ）为配阴离子,以１,１０－邻菲绕啉（Ｐｈ…