4-Oxo-7-fluoro-1,10-phenanthroline-2,9-diamides: Synthesis, Structural Features, Lanthanide Complexes, and Am(III)/Ln(III) Solvent Extraction

Avagyan, N.A.; Lemport, P.S.; Roznyatovsky, V.A.; Evsiunina, M.V.; Matveev, P.I.; Gerasimov, M.A.; Lyssenko, K.A.; Goncharenko, V.E.; Khrustalev, V.N.; Dorovatovskii, P.V.; Tarasevich, B.N.; Yakushev, A.A.; Averin, A.D.; Gloriozov, I.P.; Petrov, V.G.; Ustynyuk, Y.A.; Nenajdenko, V.G.

Авторы: Avagyan Nane A., Lemport Pavel S., Roznyatovsky Vitaly A., Evsiunina Mariia V., Matveev Petr I., Gerasimov Mikhail A., Lyssenko Konstantin A., Goncharenko Victoria E., Khrustalev Victor N., Dorovatovskii Pavel V., Tarasevich Boris N., Yakushev Alexei A., Averin Alexei D., Gloriozov Igor P., Petrov Vladimir G., Ustynyuk Yuri A., Nenajdenko Valentine G.
Журнал: Inorganic Chemistry
Том: 62
Номер: 43
Год издания: 2023
Издательство: American Chemical Society
Местоположение издательства: United States
Первая страница: 17721
Последняя страница: 17735
DOI: 10.1021/acs.inorgchem.3c02371
Аннотация: A highly efficient synthetic approach was developed for the synthesis of unsymmetrical 1,10-phenanthroline-2,9-diamides with two different substituents in the fourth and seventh positions of the phenanthroline core. The structures of these ligands were confirmed using various spectral methods including 2D-NMR and X-ray analysis. Quantum chemical calculations supported the presence of tautomeric forms of these ligands. Furthermore, it was discovered that these compounds exhibit polydentate ligand behavior toward lanthanide nitrates. The structural characteristics of the complexes formed between these ligands and lanthanide nitrates were investigated both in the solid state and in solution. To further understand the binding properties of these novel unsymmetrical ligands, the binding constants for potential complexes were quantitatively measured by using UV–vis spectrophotometric titration. This allowed for a comprehensive analysis of the binding affinity and stability of these complexes. Extraction experiments of f-elements were performed for symmetrical and unsymmetrical diamides. Overall, this study presents significant advancement in the synthesis and characterization of unsymmetrical 1,10-phenanthroline-2,9-diamides and provides valuable insights into their potential applications as polydentate ligands for lanthanide nitrates.
Добавил в систему: Авакян Нанэ Арменовна

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4-Oxo-7-fluoro-1,10-phenanthroline-2,9-diamides: Synthesis, Structural Features, Lanthanide Complexes, and Am(III)/Ln(III) Solvent Extractionстатья

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