Synthesis and evaluation of ligands with mixed amide and phosphonate, phosphinoxide, and phosphonothioate sites for An(III)/Ln(III) extraction

M. Iqbal, R.G. Struijk, Jurriaan Huskens, M. Sypula, A. Wilden, G. Modolo, Willem Verboom

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Various organophosphorus ligands with a combination of different donor sites were synthesized and evaluated by solvent extraction studies for the complexation of Am(III)/Eu(III). Among the ligands with a glycolamide backbone, those with mixed amide and PO donor sites and a central oxygen or nitrogen atom showed a reasonable extraction of Am(III) and Eu(III). Ligands with a central oxygen atom exhibited selectivity towards Eu(III), and those with a central nitrogen atom towards Am(III). Ligands with PS donor sites and a glycolamide backbone did not show any reasonable extraction. Amongst the ligands with a malonamide backbone, high extraction efficiency was observed for the ligand with electron-rich substituents on phosphorus, however, with almost no discrimination between Am(III) and Eu(III). The extraction efficiency of different ligands towards Eu(III) was confirmed by microcalorimetry.
Original languageEnglish
Pages (from-to)2048-2059
Number of pages11
JournalNew journal of chemistry
Volume36
Issue number10
DOIs
Publication statusPublished - 2012

Keywords

  • METIS-293814
  • IR-85056

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