三氟丙酮
三辛基氧化膦
化学
苯甲酸
铕
荧光
发光
核化学
吸收光谱法
无机化学
药物化学
光化学
有机化学
材料科学
离子
萃取(化学)
物理
量子力学
光电子学
溶剂萃取
作者
Xuehui Zhan,Zhongliang Xiao,Hanhui Zhan,Xuehui Zhao,Zhou Sui-an,Fei Li
标识
DOI:10.1016/s1002-0721(08)60252-5
摘要
A series of Eu(III) complexes of α-thenoyltrifluoroacetone(HTTA) with trioctylphosphine oxide(TPPO) and benzoic acid(BA) or its two derivatives, p-toluic acid(PTA) and p-methoxybenzoic acid(POA) were synthesized and were characterized with elemental analysis, IR spectroscopy, scanning electronic microscopy and fluorescent spectra. The complexes were revealed to be Eu(BA)(TTA)2TPPO2, Eu(PTA)(TTA)2TPPO2 and Eu(POA)(TTA)2TPPO2. The excitation and absorption spectra of the complex Eu(POA)(TTA)2TPPO2 in MeOH solution were investigated in detail. The experimental result showed that relatively cheap materials with sharp red luminescence could be prepared, when benzoic acid or its two derivatives were added in Eu(III) complexes of α-thenoyltrifluoroacetone with trioctylphosphine oxide. The relative fluorescence intensity of the Eu(III) complexes decreased in the following order: Eu(POA)(TTA)2TPPO2> Eu(PTA)(TTA)2TPPO2>Eu(BA)(TTA)2TPPO2.
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