Unique selectivity reversal in Am3+-Eu3+ extraction in a tripodal TREN-based diglycolamide in ionic liquid: Extraction, luminescence, complexation and structural studies

  • Andrea Leoncini
  • , Prasanta K. Mohapatra*
  • , Arunasis Bhattacharyya
  • , Dhaval R. Raut
  • , Arijit Sengupta
  • , Parveen K. Verma
  • , Nidhi Tiwari
  • , Dibyendu Bhattacharyya
  • , Sambhunath Jha
  • , Anna M. Wouda
  • , Jurriaan Huskens
  • , Willem Verboom
  • *Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

An N-pivot diglycolamide extractant (DGA-TREN) was synthesized for the first time and its complexation behaviour was studied towards trivalent lanthanide/actinide ions. The solvent extraction studies suggested a unique selectivity reversal in the extraction of trivalent actinides versus trivalent lanthanides which was observed performing extraction studies in an ionic liquid vis-à-vis a molecular diluent for a tripodal TREN-based diglycolamide ligand (DGA-TREN) vs. a tripodal diglycolamide ligand (T-DGA) which may have great significance in radioactive waste remediation. The nature of the bonding to Eu3+ ion was investigated by EXAFS as well as by DFT calculations.

Original languageEnglish
Pages (from-to)2476-2484
Number of pages9
JournalDalton transactions
Volume45
Issue number6
DOIs
Publication statusPublished - 14 Feb 2016

Keywords

  • 2023 OA procedure

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