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机构地区:[1]湖南工业大学绿色包装与生物纳米技术应用重点实验室,湖南株洲412008
出 处:《中国稀土学报》2015年第2期182-187,共6页Journal of the Chinese Society of Rare Earths
基 金:国家自然科学基金项目(21276070)资助
摘 要:为了探讨2,3-二氢黄酮类化合物在发光材料方面的应用,首先合成了2,3-二氢黄酮类衍生物[3-(2-萘甲酰基)-2-苯基苯并二氢吡喃-4-酮(L)]配体,然后利用Eu(III)与此配体和水/邻菲罗啉(Phen)反应得到两种新型的红色荧光配合物。运用元素分析、红外光谱与荧光光谱等手段对相关物质进行了系统的表征。表征结果表明:两个新配合物的组成分别为Eu(L)3·2H2O和Eu(L)3·Phen;荧光光谱研究显示,两种配合物的配体能将吸收的能量有效地传递给铕离子,从而使配合物发射出强的铕离子的特征荧光,且两个配合物Eu(L)3·2H2O和Eu(L)3·Phen均以5D0→7F2跃迁的荧光发射最强。得到了两种新的高效的红色荧光材料。In order to investigate the application of flavonones in luminescent material,the derivative ligand of 3-( 2-naphthoyl)-2-phenylchroman-4-one( L) was synthesized,and the new bright red Eu( Ⅲ) complexes of the ligand with H2O / phenanthrene were prepared. The related compounds were characterized by elemental analysis,infrared spectroscopy and fluorescence spectroscopy. The compositions of the complexes were confirmed to be Eu( L)3·2H2O and Eu( L)3·Phen. Fluorescence spectroscopy studies showed that complexes exhibited characteristic emission of europium ions,which indicated that the energy absorbed by the ligand could be effectively transferred to europium ions,moreover the fluorescent intensity of^5D0→^7F2 of the Eu( L)3·2H2O and Eu( L)3·Phen was the highest. Two new bright red fluorescent materials were obtained.
关 键 词:3-(2-萘甲酰基)-2-苯基苯并二氢吡喃-4-酮 铕 荧光性质
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