摘要
以2,2′-联吡啶-3,3′-二羧酸为配体合成了一个稀土-有机功能配合物[Tb2(C12H6O4N2)3(Phen)2(H2O)2.6H2O]n,并用X射线单晶衍射仪测定了其结构。检测了该配合物的荧光和磁性。结果表明:配合物在490.0、546.0、586.0和620.0nm处有四个特征荧光发射峰,它们分别归属于铽(Ⅲ)离子的5D4→7F6,5D4→7F5,5D4→7F4和5D4→7F3的电子跃迁;在低温下配合物有弱的反铁磁性。
A rare earth-organics complex [Tb2（C12H6O4N2）3（Phen）2（H2O）2·6H2O]n
（1）with 2, 2′-hi- pyridine-3, 3′-dicarboxylic acid （H2L） as the ligand has been synthesized and characterized by single-crystal X-ray structure determination. The fluorescent and magnetic properties of complex 1 were investigated. The results show that 1 has four characteristic emission peaks arising from the transition of terbium （Ⅲ） ion as ^5D4→^7F6 （490. 0 nm）, ^5D4→^7F5 （546.0 nm）, ^5D4→^7F4 （586.0 nm） and ^5D4→^7F3 （620.0 nm）. The magnetic behavior shows that 1 exhibits weak antiferromagnetic property at low temperatures.
出处
《衡阳师范学院学报》
2012年第6期42-46,共5页
Journal of Hengyang Normal University
基金
Supported by the Fund of Science and Technology Committee of Hunan Province(No.2012GK3030)
The Scientific Research Fund of Hunan Provincial Education Department(No.B21018)
The Hengyang Bureau of Science&Technology(No.2011kG28)
Foundation for University Key Teacher by Hunan Provinc
关键词
铽(Ⅲ)配合物
晶体结构
荧光和磁性
terbium （Ⅲ） complex
crystal structure
fluorescent and magnetic properties
