稀土与桂皮酸、2,2’-联吡啶三元配合物合成、表征及荧光性质  

Synthesis,Characterization and Fluorescent Property of Ternary Complexes of Rare-Earth,Cinnamic Acid and 2,2'-Bipyridine

作　　者：杨永丽[1] 邓玉恒[1] 聂峰梅[1] 王少亭[1] 宗瑞发[1] 

机构地区：[1]首都师范大学化学系,北京100037

出　　处：《光谱学与光谱分析》2006年第4期663-665,共3页Spectroscopy and Spectral Analysis

基　　金：北京市科技新星计划(H013610050112);北京市教委项目(2002KJ094)资助

摘　　要：以2,2’-联吡啶(bipy)、桂皮酸(HL)为配体与稀土离子(RE=Tb,Gd,Eu,Sm,Nd)在乙醇溶液中合成了三元稀土配合物。通过元素分析、摩尔电导、紫外光谱、红外光谱、差热-热重分析,确定了配合物的组成为REL3.bipy。并讨论了配合物的谱学性质及EuL3和EuL3.bipy.H2O的荧光性能。EuL3的荧光强度比EuL3.bipy.H2O的荧光强度强4.5倍。The ternary rare-earth complexes were synthesized using cinnamic acid （L）, 2,2 ＇-bipyridine （bipy） and rare-earth （RE= Tb, Eu, Gd, Nd） in ethanol solutiorL Their compositions were confirmed to be REL3·bipy by the element analysis, infrared and ultraviolet absorption spectra, and DTA-TGA, respectively. The spectral properties of complexes and the fluorescent property of EuL3· bipy were discussed. The fluorescence intensity of EuL3 is 4. 5 times stronger than that of EuL3· bipy · H2O.

关 键 词：稀土配合物 桂皮酸 2 2'-联吡啶 荧光性质 

分 类 号：O614.3[理学—无机化学]