Issue 17, 2019

Soft-donor dipicolinamide derivatives for selective actinide(iii)/lanthanide(iii) separation: the role of S- vs. O-donor sites

Abstract

Selectivity for An(III) vs. Ln(III) binding and extraction using dipicolinamide analogs containing the C[double bond, length as m-dash]O vs. C[double bond, length as m-dash]S 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.

Graphical abstract: Soft-donor dipicolinamide derivatives for selective actinide(iii)/lanthanide(iii) separation: the role of S- vs. O-donor sites

Supplementary files

Article information

Article type
Communication
Submitted
24 Sept. 2018
Accepted
30 Janv. 2019
First published
30 Janv. 2019

Chem. Commun., 2019,55, 2441-2444

Author version available

Soft-donor dipicolinamide derivatives for selective actinide(III)/lanthanide(III) separation: the role of S- vs. O-donor sites

I. Lehman-Andino, J. Su, K. E. Papathanasiou, T. M. Eaton, J. Jian, D. Dan, T. E. Albrecht-Schmitt, C. J. Dares, E. R. Batista, P. Yang, J. K. Gibson and K. Kavallieratos, Chem. Commun., 2019, 55, 2441 DOI: 10.1039/C8CC07683A

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