三元稀土配合物RE(NTA)_2AA的合成、共聚反应性及荧光性能研究  

Synthesis,Copolymerization and Fluorescent Property of Ternary Rare Earth Complexes RE(NTA)_2AA

作　　者：索全伶[1] 时建伟[1] 吕芳[1] 罗吉平[1] 

机构地区：[1]内蒙古工业大学化工学院,呼和浩特010051

出　　处：《无机化学学报》2007年第8期1463-1468,共6页Chinese Journal of Inorganic Chemistry

基　　金：内蒙古优秀学科带头人项目(No.20041001);教育部春晖计划合作项目(No.2005-12-26)资助。

摘　　要：Four new ternary rare earth complexes RE(NTA)2AA (RE=Sm3+,Eu3+,Tb3+,Dy3+) have been synthesized by the reaction of rare earth chloride(RECl3·6H2O) with Acrylic Acid (HAA) and 4,4,4-trifluoro-1-(3-pyridyl)-1,3-butanedione(NTA) in alcohol. The copolymerization of the complexes RE(NTA)2AA (RE=Sm3+,Eu3+) with methyl methacrylate (MMA) has been studied by 2,2-azobis-isobutyronitrile as an initiator. Influence of adding Eu(Ⅲ) and 2,2′-bipyridine(bipy) into copolymer Eu(NTA)2AA-co-MMA on fluorescence property of the Eu copolymer was investigated. The compositions of the complexes and copolymer were characterized by means of elemental analysis and FTIR. The heat decomposing behaviors of the complexes were determined by TG-DTA. The glass transition temperature and molecular weight were obtained by DSC and GPC. The results of fluorescence properties show that the Eu,Sm complexes and Eu copolymer can efficiently emit fluorescence,but the Tb and Dy complexes only emit the fluorescence of β-diketone ligand.Four new ternary rare earth complexes RE（NTA）2AA （RE=Sm3＋,Eu3＋,Tb3＋,Dy3＋） have been synthesized by the reaction of rare earth chloride（RECl3·6H2O） with Acrylic Acid （HAA） and 4,4,4-trifluoro-1-（3-pyridyl）-1,3-butanedione（NTA） in alcohol. The copolymerization of the complexes RE（NTA）2AA （RE=Sm3＋,Eu3＋） with methyl methacrylate （MMA） has been studied by 2,2-azobis-isobutyronitrile as an initiator. Influence of adding Eu（Ⅲ） and 2,2′-bipyridine（bipy） into copolymer Eu（NTA）2AA-co-MMA on fluorescence property of the Eu copolymer was investigated. The compositions of the complexes and copolymer were characterized by means of elemental analysis and FTIR. The heat decomposing behaviors of the complexes were determined by TG-DTA. The glass transition temperature and molecular weight were obtained by DSC and GPC. The results of fluorescence properties show that the Eu,Sm complexes and Eu copolymer can efficiently emit fluorescence,but the Tb and Dy complexes only emit the fluorescence of β-diketone ligand.

关 键 词：三元稀土配合物 高分子稀土配合物 合成与表征 荧光性质 

分 类 号：O614.33[理学—无机化学] O614.4[理学—化学]