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以Ln(NO3)3、H2pzdc(2,3-吡嗪-二羧酸)和prz(哌嗪)为原料,在水热条件下得到了2个结构新颖的稀土配位聚合物{(H2prz)[Ln2(pzdc)4(H2O)2]·5H2O}n(Ln=Eu(1),Tb(2))。对它们进行了元素分析、红外光谱、粉末X-射线衍射、热重等分析,并用X-射线衍射测定了它们的单晶结构。2个配合物的晶系都属于三斜晶系,P1空间群。研究了它们的荧光性质,固体荧光实验测试结果表明,2个配合物在室温下均表现出相应稀土离子的特征荧光发射。
Two new rare earth coordination polymers, {(H2prz) and (PPh2) 2, were synthesized by the hydrothermal method using Ln (NO3) 3, H2pzdc [Ln2 (pzdc) 4 (H2O) 2] .5H2O} n (Ln = Eu (1), Tb (2)). They were analyzed by elemental analysis, infrared spectroscopy, powder X-ray diffraction, thermogravimetric analysis and their single crystal structures were determined by X-ray diffraction. Both complexes belong to the triclinic crystal system, P1 space group. Their fluorescence properties were studied. The results of solid fluorescence experiments showed that both complexes showed the characteristic fluorescence emission of corresponding rare earth ions at room temperature.