【摘要】 合成了稀土铕与N-乙酰-DL-丙氨酸(C5H9NO3,Ac-A la)及咪唑(C3H4N2,Im)的固体新配合物。通过元素分析和化学分析确定其化学组成为Eu(C5H8NO3)2(C3H5N2)2C l3.3H2O,并通过FTIR、UV1、H NMR、13C NMR和X射线粉末衍射等测试技术对配合物进行了表征;根据TG-DTG曲线研究了配合物的热分解过程;利用Achar微分法及Coats-Redfern积分法对非等温动力学数据进行分析,推断出脱水阶段的动力学方程为dα/dt=A/β.e-E/RT{(1-α)[-ln(1-α)]-1/2}。发光性能测试表明,该配合物具有很好的荧光性能。更多还原

【Abstract】 A new solid complex of rare earth Eu（Ⅲ） with N-acetyl-DL-alanine(C₅H₉NO₃,Ac-Ala) and（imidazole）(C₃H₄N₂,Im) was synthesized and characterized by means of chemical and elemental analyses,（FTIR）,UV,¹H NMR,¹³C NMR and XRD.The composition of the complex was confirmed to be(Eu(C₅H₈NO₃)₂(C₃H₅N₂)₂Cl₃·3H₂)O.The thermal decomposition of the complex was studied via（TG-DTG） curve.By means of the Achar method and the Coats-Redfern method,the non-isothermal kinetic data of the dehydration stage of the complex was analyzed.The most probable reaction mechanism was suggested by（comparing） the kinetic parameters.The kinetic equation for the dehydration stage could be expressed as（dα/dt=）A/β·e^-E/RT{（1-α）[-ln （1-α）]^-1/2}.Luminescence measurement showed that the complex emits fluorescence.更多还原