Effect of long-range interactions on ion equilibria in liquid–liquid extraction

A predictive model of reverse micelles solubilizing water for solvent extraction

“…The presence of water as a solute in the core is taken into account. Furthermore, the relation between the bending energy per surface area [21] and bending energy per extractant molecules [20,31,32] and their corresponding bending constants has been described for the case of reverse spherical micelles.…”

The Lanthanide Contraction beyond Coordination Chemistry

“…To the best of our knowledge,t his observation serves as the first experimentale videncet hat supports recent theory predicting ion transport between oil and water phases depends not only on complexation toward nearestn eighbors buta lso on supramolecular interactions that manifest structure on longer-length scales. [19]…”

Metal Recognition Driven by Weak Interactions: A Case Study in Solvent Extraction

“…Traditionally,c omplexation (metal-ligand interaction) by the polar head of the extractant was supposed to play the most important role in the process, and thus the design of selective extracting molecules wasb ased on first sphere molecular coordinationc hemistry considerations. [10] Weak interactions involving the hydrophobic tails of the extractantsa nd the diluent induce self-assembly of the extractantsi nto reversea ggregates, which enable the stabilizationo fm etallic cations inside their aqueous cores. Then, outer-sphere coordination chemistry considerations have also been successfully invoked, leading, for instance, to ab etter description of Cu extraction with oximes, with emphasis set on the buttressing effect of H-bonds.…”

“…[9] Finally,s upramolecular ordering of the organic phase has also been demonstrated to playa ni mportant role in the process. [10] Weak interactions involving the hydrophobic tails of the extractantsa nd the diluent induce self-assembly of the extractantsi nto reversea ggregates, which enable the stabilizationo fm etallic cations inside their aqueous cores. [11] However,t he importance of this supramolecularo rdering wasr ather studied to understand third phase formation at high acid or metal loading.…”