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2,6-二(对溴苯甲酰乙酰基)吡啶及其铕配合物的合成与发光研究
Synthesis and luminescence of 2,6-bis(p-bromobenzoylacetyl) pyridine and its complexes with europium(Ⅲ)
【Author】 ZHU Jin-liang,LIU Sheng-li,YU Liang-cai,OUYANG Tao (School of Chemistry and Chemical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)
【机构】 湖南科技大学化学化工学院;
【摘要】 合成了一种新的双β-二酮化合物,2,6-二(对溴苯甲酰乙酰基)吡啶(H2L)。以H2L作为配体,与EuCl3反应合成了二元配合物Eu2L3·4H2O;以邻菲罗啉作为第二配体与EuCl3反应合成了三元配合物Eu2L3(Phen)2。通过核磁共振谱,质谱,红外光谱,差热-热重分析和荧光光谱对化合物进行了表征和性质研究。结果表明,配体本身是一种好的发光体,在配合物中配体能有效地将能量传递给Eu3+,产生强的Eu3+发光;第二配体邻菲罗啉的加入能显著增强Eu3+发光。
【Abstract】 A new beta-ketone,2,6-Bis(p-bromobenzoylacetyl)pyridine(H2L) was synthesized.The binary complex, Eu2L3·4H2O,was synthesized by the reaction of synthesized ligand(H2L) and europium(Ⅲ).With H2L as the first ligand and 1,10-phenanthroline(Phen) as the second ligand,the ternary complex,Eu2L3 (Phen)2,was synthesized.The compounds were characterized by 1H-NMR spectroscopy,MS,IR,DTA-TG and fluorescence spectrum.The fluorescence spectra indicated that the synthesized ligand was a good luminescent material and can transfer the energy absorbed to Eu(Ⅲ) efficiently to produce the strong luminescence of Eu(Ⅲ),and the addition of 1,10-phenanthroline as the second ligand can obviously enhance the luminescence of Eu(Ⅲ) in the ternary complex.
【Key words】 2,6-bis(p-bromobenzoylacetyl) pyridine; europium; complexes; luminescence;
- 【会议录名称】 第七届中国功能材料及其应用学术会议论文集(第6分册)
- 【会议名称】第七届中国功能材料及其应用学术会议
- 【会议时间】2010-10-15
- 【会议地点】中国湖南长沙
- 【分类号】O627.3
- 【主办单位】中国仪器仪表学会仪表材料分会、重庆仪表材料研究所、中南大学、《功能材料》期刊社