Molecules
(Jul 2024)
Influence of Diluent on Extraction Parameters of Systems for Separation Am(III) and Ln(III) Based on 1,10-Phenanthroline-2,9-Diamide
Mikhail A. Gerasimov,
Petr I. Matveev,
Mariia V. Evsiunina,
Enni. K. Khult,
Paulina Kalle,
Valentine S. Petrov,
Pavel S. Lemport,
Vladimir G. Petrov,
Galina V. Kostikova,
Yuri A. Ustynyuk,
Valentine G. Nenajdenko
Affiliations
Mikhail A. Gerasimov
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
Petr I. Matveev
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
Mariia V. Evsiunina
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
Enni. K. Khult
Department of Materials Science, Lomonosov Moscow State University, Moscow 119991, Russia
Paulina Kalle
N.S. Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow 119991, Russia
Valentine S. Petrov
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
Pavel S. Lemport
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
Vladimir G. Petrov
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
Galina V. Kostikova
Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Sciences, Moscow 119071, Russia
Yuri A. Ustynyuk
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
Valentine G. Nenajdenko
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
DOI
https://doi.org/10.3390/molecules29153548
Journal volume & issue
Vol. 29,
no. 15
Abstract
Read online
A systematic study of extraction systems for the separation of f-elements using the tetradentate N,O-donor diamide of 1,10-phenanthroline-2,9-dicarboxylic acid (L) in various molecular and ionic solvents was performed. It was demonstrated that the nature of a diluent has a significant impact on solvent extraction of Am(III) and Ln(III) and the stoichiometry of formed complexes with f-elements. The mechanism of complexation and forms of complexes in different diluents were investigated by radiometric methods, UV-vis titration, and XRD.
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