【摘要】 以Tb(NO3)3·6H2O、吡啶-2,5-二甲酸(H2pydc)为原料,合成了一个新型中心对称的三维配位聚合物{(H3O)[Tb(pydc)2]}n。经X射线单晶衍射、元素分析、红外光谱、热重分析,荧光光谱等对配合物的结构进行表征。在配位单元[Tb(pydc)2]-中,Td(III)离子与吡啶-2,5-二甲酸配体上的N原子、O原子配位形成八配位的十二面体构型。相邻的两个Td(III)离子通过吡啶-2,5-二甲酸的桥连作用形成三维网状结构。荧光光谱实验表明该化合物在546 nm处有强的荧光发射。另外对配合物的分解过程进行了动力学分析。更多还原

【Abstract】 A new terbium complex {(H3O) [Tb(pydc)2]}n was synthesized using Tb(NO3)3·6H2O and pyridine 2,5-dicarboxylic acid as raw materials.The structure and property of the title complex were characterized by elemental analysis,thermal analyses,IR spectra and fluorescence.Single-crystal X-ray diffraction analysis indicated that the crystal belongs to orthorhombic,space group Pbcn.The single crystal structure shows that the title complex has three-dimensional channel structure.The coordination number of central ion Tb(Ⅲ) is eight.The title complex exhibits intense luminescence in the liquid state at room temperature.In addition,thermal stability and dynamics of the title complex were analyzed and pyrolysis kinetic parameters were obtained.更多还原