Achieving highly efficient and selective cesium extraction using 1,3-di-octyloxycalix[4]arene-crown-6 in <i>n</i>-octanol based solvent system: experimental and DFT investigation
Kankan Patra, Biswajit Sadhu, Arijit Sengupta, C. B. Patil, Rakesh Mishra, C.P. Kaushik
Abstract
value in the optimized solvent system. Density functional theory (DFT) based calculations have been carried out to elucidate the reason of ionic selectivity and enhanced Cs extraction efficiency of CC6 in the studied diluent systems. In addition to the ionic size-based selectivity of the crown-6 cavity, the polarity of the organic solvent system, the hydration energy of the ion, and the relative reorganization of CC6 upon complexation with Cs are understood to have roles in achieving the enhanced efficiency for the extraction of Cs by the CC6 extractant in nitrobenzene medium.
Topics & Concepts
DiluentExtraction (chemistry)ChemistryOctanolSolventCaesiumSelectivityIonic liquidIonic bonding18-Crown-6IonPhase (matter)Inorganic chemistryNuclear chemistryChromatographyOrganic chemistryPartition coefficientCatalysisRadioactive element chemistry and processingChemical Synthesis and CharacterizationExtraction and Separation Processes