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Benzene-centered tripodal diglycolamides: Synthesis, metal ion extraction, luminescence spectroscopy, and DFT studies

By Andrea Leoncini, Seraj Ahmad Ansari, Prasanta Kumar Mohapatra, Anil Boda, Sheikh Musharaf Ali, Arijit Sengupta, Jurriaan Huskens and Willem Verboom

Abstract

Three benzene-centered tripodal diglycolamides (Bz-T-DGAs) were synthesized and evaluated for actinide, lanthanide, and fission product ion extraction. 1,3,5-Triethylbenzene-based tripodal DGA (LI) showed high distribution ratio (D) values for Am3+ and Eu3+ in a mixture of 95% n-dodecane and 5% iso-decanol at 3 M HNO3. Eu/Am separation factors, in the range of 8-10, were obtained at 1 M HNO3 which decreased at higher acidities with the exception of LII which did not show much change. Benzene-1,3,5-triamide-based tripodal DGA (LII) exhibited a high D-value for Pu4+ compared to the other ligands. Slope analysis showed the formation of 1:1 or 1:2 complexes is dependent on the ligand. The nature of the complexes was further studied with luminescence spectroscopy (Eu complexes) and DFT calculations (Am complexes)

Topics: Inorganic Chemistry
Year: 2017
DOI identifier: 10.1039/c6dt04034a
OAI identifier:
Provided by: NARCIS
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