NH_4[RE(Ac)_4·H_2O]发光稀土配合物的研究  

NH_4[RE(Ac)_4·H_2O] luminescent rare earth complex

作　　者：胡珍[1] 林美娟[1] 王文[1] 章文贡[1] 

机构地区：[1]福建师范大学化学与材料学院,福建福州350007

出　　处：《分子科学学报》2010年第2期122-126,共5页Journal of Molecular Science

基　　金：福建省自然科学基金资助项目(2006J0250);福建省纳米重大专项资助项目(2005HZ01-5)

摘　　要：以乙酸和乙酸铵为配体,合成了新颖发光稀土配合物,通过元素分析、红外光谱、热重分析等手段对配合物进行了表征,确定其结构为NH4[RE(Ac)4.H2O](RE=Tb或Eu).结果表明,配合物中羧基以螯合、双齿和单齿方式与稀土离子配位;并通过荧光光谱分析、荧光寿命研究了其发光性能,配合物能发射强的稀土离子的特征荧光且有较长的荧光寿命.A novel luminescent rare earth complex with acetic acid and ammoniunm acetate ligands has been synthesized.The composition and structure were investigated by elements analysis,infrared spectroscopy,TG etc.Its structure was determined as NH4[RE（Ac）4·H2O].The infrared results indicate that the coordination modes of the carboxyl groups exist one chelation,two bidentate,one mondentate.The fluorescent excitation and emission spectrum,fluorescent lifetime were also studied.Both complexes display strong characteristic emission of Tb^3＋ ion,Eu^3＋ ion respectively.NH4[Tb（Ac）4·H2O] complex has longer fluorescent lifetime.

关 键 词：乙酸 乙酸铵 稀土配合物 荧光 

分 类 号：O627[理学—有机化学]