论文部分内容阅读
由威廉姆逊反应制备得到了1,2-乙二硫醚基桥联两个乙酰丙酮结构单元的双β-二酮分子1,2-二(3-硫醚基-2,4-戊二酮基)乙烷,采用紫外光谱法考察了1,2-二(3-硫醚基-2,4-戊二酮基)乙烷对8种稀土金属离子(Eu3+、Y3+、Tb3+、La3+、Ce3+、Sm3+、Er3+、Tm3+)的离子识别能力及其对Tb3+离子的萃取性能和液膜传输性能。结果表明,其对Tb3+离子具有良好的选择性识别作用和优良的萃取性能以及液膜传输性能,同时紫外光谱滴定模拟实验说明了该化合物与Tb3+离子之间形成1∶1型配合物,并且其还可对水样中Tb3+离子的含量进行分析。
The 1,2-ethane disulfide-based bis-β-diketone molecule that is a bridge between two acetylacetone structural units is prepared from the Williamson reaction 1,2-bis (3-thioether- (Eu3 +, Y3 +, Tb3 +, La3 +, K3 +, K3 +) were studied by UV spectroscopy. Ce3 +, Sm3 +, Er3 +, Tm3 +) ions and their extraction performance and liquid film transport properties for Tb3 + ions. The results show that it has a good selectivity for Tb3 + ion recognition and excellent performance of extraction and liquid film transmission properties, and UV spectrophotometric titration experiments show that the compound and Tb3 + ions form a 1: 1 type complex, and its Tb3 + ions can also be analyzed in water samples.