Cesium and americium extraction from carbonate-alkaline media with O-substituted p-alkylcalix[8]arenes

Tuning Solid-State Calix[n]arene Supramolecular Assemblies Using Phenanthroline as the Guest Molecule

“…The basic calix­[ n ]­arene molecules can be made more complex by modifying the aromatic rings at the para position and/or substituting hydrogen atoms of the hydroxyl groups with a variety of functional groups, e.g., adamantyl, phosphonic acid, carboxylic acid, sulfonic acid, alkyl, acyl, ester, ether, amino, nitro, and so forth. The goal of the functionalization of calix­[ n ]­arene molecules is, among others, changing their solubility in a specific solvent, or changing the selectivity and the stability of their complexes formed with other molecules.…”

Separation of terbium as a first step towards high purity terbium-161 for medical applications

“…Although there are many examples on rare earth separation, [24][25][26][27][28][29][30] there are only a few examples of separation processes in general using carbonate medium. These examples consist of extraction of lanthanides and transplutonium elements from alkaline and carbonate media can be achieved mainly via liquid-liquid extraction, [31][32][33][34][35][36] using various extractants such as quaternary ammonium salts, [37][38][39] primary amines 40 or alkylpyrocatechols. 41 There are also just a few examples of using extraction chromatography in carbonate media.…”