Solvation-Anionic Exchange Mechanism of Solvent Extraction: Enhanced U(VI) Uptake by Tetradentate Phenanthroline Ligands
作者:Svetlana V. Gutorova、Petr I. Matveev、Pavel S. Lemport、Daniil A. Novichkov、Igor P. Gloriozov、Nane A. Avagyan、Alexey O. Gudovannyy、Yulia V. Nelyubina、Vitaly A. Roznyatovsky、Vladimir G. Petrov、Konstantin A. Lyssenko、Yuri A. Ustynyuk、Stepan N. Kalmykov、Valentine G. Nenajdenko
DOI:10.1021/acs.inorgchem.2c03571
日期:2023.1.9
a polar organic solvent forming complexes of 1:2 stoichiometry as tight ion pairs [UO2LNO3]+[UO2(NO3)3]−} by a novel extraction mechanism, which is a combination of two already well-known mechanisms: solvation and ion-pair anion exchange. A UV–vis study was used to confirm the formation of such complexes directly in the organic phase. Moreover, chemical synthesis and singlecrystal growth were performed
菲咯啉二酰胺 ( L ) 展示了一种独特的能力,可以将铀从硝酸溶液中提取到极性有机溶剂中,形成化学计量比为 1:2 的紧密离子对 [UO 2 L NO 3 ] + [UO 2 (NO 3 ) 3 ] − } 通过一种新颖的提取机制,它结合了两种众所周知的机制:溶剂化和离子对阴离子交换。UV-vis 研究用于确认直接在有机相中形成此类复合物。此外,进行了化学合成和单晶生长,以明确确认固态复合物的结构。