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以Sm(NO3)3·6H2O、Dy(NO3)3·6H2O、吡啶-2,5-二羧酸(H2pydc)为原料,用水热合成法合成了2个新的稀土金属配合物[Ln(pydc)2(H2O)5]·4H2O(Ln=Sm(1),Dy(2)),单晶结构经X单晶衍射仪分析确定,两种配合物的晶系均为单斜晶系,C2/c空间群。对晶体的性质进行元素分析、热重、红外光谱,荧光等分析。结果表明,配合物1和2在常温下表现出稀土离子相应的特征荧光发射。另外,本文对两种配合物进行了热稳定性及动力学分析。
Two new rare-earth metal complexes [Ln (pydc) were synthesized by hydrothermal method using Sm (NO3) 3.6H2O, Dy (NO3) 3.6H2O and H2pydc as raw materials. ) 2 H2O (H2O) 5] · 4H2O (Ln = Sm (1), Dy (2)). The single crystal structure was confirmed by single crystal X-ray diffraction. The crystal structures of the two complexes were monoclinic, C2 / c space group. The crystal properties of elemental analysis, thermogravimetry, infrared spectroscopy, fluorescence and other analysis. The results show that complexes 1 and 2 exhibit the corresponding characteristic fluorescence emission of rare earth ions at room temperature. In addition, the thermal stability and kinetic analysis of the two complexes were carried out.