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Soft-donor dipicolinamide derivatives for selective actinide(iii)/lanthanide(iii) separation: the role of S- vs. O-donor sites
- Lehman-Andino, Ingrid, Su, Jing, Papathanasiou, Konstantinos E., EatonCurrent address: Embry-Riddle Aeronautical University, Prescott, AZ, USA., Teresa M., Jian, Jiwen, Dan, David, Albrecht-Schmitt, Thomas E., Dares, Christopher J., Batista, Enrique R., Yang, Ping, Gibson, John K., Kavallieratos, Konstantinos
- Chemical communications 2019 v.55 no.17 pp. 2441-2444
- acetonitrile, actinides, chemical reactions, gases, ligands
- Selectivity for An(iii) vs. Ln(iii) binding and extraction using dipicolinamide analogs containing the CO vs. CS groups was investigated in solution and the gas-phase, and by DFT calculations. The results show higher selectivity for complex formation and extraction for Am(iii) vs. Eu(iii) for the softer dithioamide vs. the diamide ligand, while in CH₃CN the diamide binds more strongly than the thioamide to several Ln(iii), forming 1 : 1 complexes.