一种新的铽发光配合物的合成、晶体结构及表征  

Synthesis,Crystal Structure and Characterization of a Novel Terbium Fluorescent Coordination Polymer

作　　者：师奇松[1] 梁发强[1] 

机构地区：[1]北京石油化工学院,北京102600

出　　处：《稀有金属材料与工程》2010年第7期1202-1205,共4页Rare Metal Materials and Engineering

基　　金：北京石油化工学院青年科研基金(N7-15)

摘　　要：在水热合成条件下合成一个新的吡啶-3,5-二羧酸的稀土铽配合物[Tb2(pydc-3,5)3(H2O)9]n3nH2O,通过X射线单晶衍射、元素分析和红外等手段的表征确定该化合物的组成和晶体结构。结果表明,吡啶-3,5-二羧酸(pydc-3,5)配体与稀土金属Tb形成了一维链状配位聚合物,中心稀土金属有两种配位形式,每个金属均与氧原子形成九配位的结构。配体中的羧酸根采用两种配位方式,即单齿配位和双齿配位。同时配合物能发出三价铽离子的特征绿色荧光,荧光光谱的研究表明,配合物表现出很好的荧光性能。Rare-earth metal-organic frameworks,[Tb2（pydc-3,5）3（H2O）9]n3nH2O,was synthesized under a hydrothermal condition. Then the composition and the crystal structure of the compound were determined by single-crystal X-ray diffraction,element analysis and IR spectra. Results show that pyridine-3,5-dicarboxylic acid （pydc-3,5） ligand and Tb element form one-dimensional chain-like coordination polymer. Here the central rare-earth metal Tb has two typical coordination environments and each metal atom is nine-coordinated with oxygen atoms. The carboxylate groups of pydc-3,5 ligand provide two kinds of coordination ways as didentate and monodentate. The terbium complex can emit characteristic green fluorescence of Tb^3＋ and the solid-state photoluminescence spectra show that the complex has excellent fluorescence property.

关 键 词：吡啶-3 5-二羧酸 铽配合物排 晶体结构 水热合成 荧光 

分 类 号：O621.13[理学—有机化学]