Separation of lanthanides and actinides(iii) using tridentate benzimidazole, benzoxazole and benzothiazole ligands
作者:Michael G. B. Drew、Clement Hill、Michael J. Hudson、Peter B. Iveson、Charles Madic、Ludovic Vaillant、Tristan G. A. Youngs
DOI:10.1039/b314321j
日期:——
2-bromodecanoic acid. Six structures of lanthanide complexes with 2,6-bis(benzoxazol-2-yl)pyridine L6 were then determined to evaluate the types of species that are likely to be involved in the separation process. Three structural types were observed, namely [LnL6(NO3)3(H2O)2], 11-coordinate only for La, [LnL6(NO3)3 (CH3CN)], 10-coordinate for Pr, Nd and Eu and [LnL6(NO3)3(H2O)], L 10-coordinate for Eu
新型疏水三齿的能力 配体 基于 2,6-双(苯并咪唑-2-基)吡啶, 2,6-双(苯并恶唑-2-基)吡啶 和 2,6-双(苯并噻唑-2-基)吡啶以选择性地提取镅(III从铕)(III)进行测定。最有前途的配体–当用于提取时,发现2,6-双(苯并恶唑-2-基)-4-(2-癸基-1-十四烷基氧基)吡啶L 9可提供高达70的分离因子(SF Am / Eu)阳离子 从0.02–0.10 M HNO 3 与TPH协同作用 2-溴莫多酸。镧系元素配合物的六种结构2,6-双(苯并恶唑-2-基)吡啶然后确定L 6来评估可能涉及分离过程的物质类型。观察到三种结构类型,即[LnL 6(NO 3)3(H 2 O)2 ],仅对于La为11坐标,[LnL 6(NO 3)3 (CH 3 CN)],对于Pr为10坐标。 ,Nd和Eu以及[LnL 6(NO 3)3(H 2 O)],Eu和Gd的L 10坐标。在三叉戟上进行了量子力学计算配体