Jump to main content
Jump to site search

Issue 3, 2015
Previous Article Next Article

Actinide selectivity of 1,10-phenanthroline-2,9-dicarboxamide and its derivatives: a theoretical prediction followed by experimental validation

Author affiliations

Abstract

The conventional concept of selective complexation of actinides with soft donor ligands (either S or N donor) has been modified here through exploiting the concept, “intra-ligand synergism”, where a hard donor atom, such as oxygen preferentially binds to trivalent actinides [An(III)] as compared to the valence iso-electronic trivalent lanthanides [Ln(III)] in presence of another soft donor centre. We have theoretically predicted the selectivity of 1,10-phenanthroline-2,9-dicarboxylamide towards the Am(III) ion through density functional calculations. Subsequently, several such amide derivatives have been synthesized to optimize the solubility of the ligands in the organic phase. Finally, solvent extraction experiments have been carried out to validate our theoretical prediction on the selectivity of mixed donor ligands towards Am(III) as compared to Eu(III), and a maximum separation factor of about 51 has been achieved experimentally using the 2,9-bis(N-decylaminocarbonyl)-1,10-phenanthroline ligand.

Graphical abstract: Actinide selectivity of 1,10-phenanthroline-2,9-dicarboxamide and its derivatives: a theoretical prediction followed by experimental validation

Back to tab navigation

Supplementary files

Publication details

The article was received on 07 Aug 2014, accepted on 07 Nov 2014 and first published on 07 Nov 2014


Article type: Paper
DOI: 10.1039/C4DT02402H
Citation: Dalton Trans., 2015,44, 1332-1340
  •   Request permissions

    Actinide selectivity of 1,10-phenanthroline-2,9-dicarboxamide and its derivatives: a theoretical prediction followed by experimental validation

    D. Manna, S. Mula, A. Bhattacharyya, S. Chattopadhyay and T. K. Ghanty, Dalton Trans., 2015, 44, 1332
    DOI: 10.1039/C4DT02402H

Search articles by author

Spotlight

Advertisements