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

Autor:	Avagyan NA; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Lemport PS; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Roznyatovsky VA; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Evsiunina MV; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Matveev PI; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Gerasimov MA; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Lyssenko KA; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Goncharenko VE; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Khrustalev VN; N.D. Zelinsky Institute of Organic Chemistry of Russian Academy of Sciences, Moscow 119991, Russia.; Department of Inorganic Chemistry, Peoples' Friendship University of Russia (RUDN University), Moscow 115419, Russia., Dorovatovskii PV; National Research Center 'Kurchatov Institute', Moscow 123182, Russia., Tarasevich BN; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Yakushev AA; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Averin AD; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Gloriozov IP; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Petrov VG; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Ustynyuk YA; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia., Nenajdenko VG; Department of Chemistry, Lomonosov Moscow State University, Leninskie gory 1 bld. 3, Moscow 119991, Russia.
Jazyk:	angličtina
Zdroj:	Inorganic chemistry [Inorg Chem] 2023 Oct 30; Vol. 62 (43), pp. 17721-17735. Date of Electronic Publication: 2023 Oct 17.
DOI:	10.1021/acs.inorgchem.3c02371
Abstrakt:	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.
Databáze:	MEDLINE
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