稀土配合物Nd(C5H8NO3)2(C3H5N2)2Cl3·4H2O的合成、表征及性能研究

Synthesis,Characterization and Properties of Rare Earth Complex Nd(C_5H_8NO_3)_2(C_3H_5N_2)_2Cl_3·4H_2O

合成了稀土氯化钕与N-乙酰-DL-丙氨酸（C5H9NO3,Ac-Ala）及咪唑（C3H4N2,Im）的三元配合物,通过元素分析和化学分析确定其化学组成为Nd（C5H8NO3）2（C3H5N2）2Cl3·4H2O,并通过FTIR、UV、^1HNMR、^13C NMR和X-射线粉末衍射的等手段对目标配合物的结构进行了表征.根据DSC和TG-DTG曲线研究了配合物的热分解过程.配合物水溶液的荧光性质测试表示,形成配合物后,配合物水溶液发生了荧光淬灭现象,在10^-2-10^-4mol/L浓度范围内荧光强度与溶液浓度呈正相关.

A new ternary complex of Neodymium chloride with N-acetyl-DL-alanine（ C5H9NO3 ,Ac-Ala） and imidazole （ C3 H4 N2, Im） was synthesized. Its composition was determined to be Nd （ C5 H9 NO3 ） 2 （ C3 H5 N2 ） 2 Cl3 · 4H2O by chemical and elemental analyses. It was characterized by FTIR, UV, ^1H NMR, ^13C NMR and X-ray powder analysis. The thermal decomposition of the complex was studied by DSC and TG-DTG curve. Fluorescence measurement of the complex in solution showed that fluorescence quenching occured after the formation of the complex. It was found that the fluorescence intensity of the complex is proportional to its concentration in range of 10^-2-10^-4mol/L.