芳香酰胺型开环冠醚稀土配合物及其荧光性质研究  

Study on Rare Earth Complexes of Aryl Amide Type Ligand and Their Luminescent Properties

作　　者：蔡正洪[1] 余超[1] 周鹃[1] 

机构地区：[1]西南交通大学药学院,四川峨眉614202

出　　处：《中国稀土学报》2006年第z1期21-23,共3页Journal of the Chinese Society of Rare Earths

基　　金：西南交通大学科技发展基金资助项目(03011032;2004A16)

摘　　要：合成了新的以水杨酰苄胺为功能端基的开环冠醚1,7-二(2′-苯甲酰苄胺)-1,4,7-三氧杂庚烷(L)有机配体及其硝酸铕和硝酸铽的配合物。利用元素分析、电导、红外光谱对配合物进行了表征,结果表明两个配合物均符合2∶3(RE(NO3)3∶L)的化学计量比。此外还初步研究了铕、铽配合物在室温下的固体荧光性质,结果表明虽然配体保持了苯羰基共轭结构对铕、铽离子的敏化发光性质,两个配合物均能表现出一定强度的特征荧光,但是配体向Tb(Ⅲ)的能量传输效率明显要强于Eu(Ⅲ)。A new aryl amide type acyclic polyether ligand with N-benzylsalicylamide as the terminal functional groups and its Eu(NO3)3,Tb(NO3)3 complexes were synthesized.The two complexes were characterized by elemental analysis,IR spectroscopy and molar conductivity.The results indicate that they have the same 2∶3 [RE(Ⅲ)∶L] molar ratio with general formula of [RE(NO3)3]2·L3 [RE=Eu(Ⅲ),Tb(Ⅲ)].Their luminescent properties were also studied in solid state at room temperature.The results show that the energy transfer(antenna effect) from ligand to Tb(Ⅲ) is more effective than Eu(Ⅲ).

关 键 词：芳香酰胺 开环冠醚 稀土配合物 荧光 

分 类 号：O482.3[理学—固体物理]