First 4,7-oxygenated 1,10-phenanthroline-2,9-diamides: synthesis, tautomerism and complexation with REE nitrates

Avagyan, Nane A.; Lemport, Pavel S.; Roznyatovsky, Vitaly A.; Averin, Alexei D.; Yakushev, Alexei A.; Lyssenko, Konstantin A.; Perfilyev, Pavel D.; Isakovskaya, Ksenia L.; Aksenova, Svetlana A.; Nelyubina, Yulia V.; Vokuev, Mikhail F.; Rodin, Igor A.; Gloriozov, Igor P.; Ustynyuk, Yuri A.; Nenajdenko, Valentine G.

doi:10.1039/d3dt03643j

Dalton Trans.

2024

DOI: 10.1039/d3dt03643j

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First 4,7-oxygenated 1,10-phenanthroline-2,9-diamides: synthesis, tautomerism and complexation with REE nitrates

Nane A. Avagyan,

Pavel S. Lemport,

Vitaly A. Roznyatovsky

et al.

Abstract: A new family of phenanthroline ligands was prepared. Hydrolysis of 4,7-dihalogenated 1,10-phenanthroline-2,9-diamides in acidic media leads to the corresponding 4,7-oxygenated derivatives. These ligands can exist in different tautomeric forms. The...

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2024

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Cited by 2 publications

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Synthesis, Crystal Structure, and Thermal Decomposition Kinetics of Six New Lanthanide Complexes

Song,

Liu,

Zhao

et al. 2024

Applied Organom Chemis

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Six novel binuclear complexes have been reported in this paper: [Ln(2‐Cl‐6‐FBA)2(5,5′‐DM‐2,2′‐bipy)(NO3)]2, (Ln = Nd(1), Pr(2)); [Ln(2‐Cl‐6‐FBA)3(5,5′‐DM‐2,2′‐bipy)(H2O)]2, (Ln = Gd(3), Er(4), Eu(5), Ho(6); 2‐Cl‐6‐FBA = 2‐chloro‐6‐fluorobenzoate; 5,5′‐DM‐2,2′‐bipy = 5,5′‐dimethyl‐2,2′‐bipyridine). The complexes underwent comprehensive characterization, incorporating both elemental analysis and X‐ray diffraction (XRD) methodologies. The subsequent X‐ray single‐crystal structure diffraction analysis illuminated the existence of diverse coordination characteristics within these complexes: the coordination number of complexes 1 and 2 is 9, and the coordination number of complexes 3–6 is 8. The fluorescence spectra of complex 5 were obtained by fluorescence test. The detailed decomposition processes of the six complexes were studied by TG‐DTG‐DSC/FTIR technique. The nonisothermal kinetics of complex 6 at the third step were discussed by using M. J. Starink method, NL‐INT method, and double equal‐double step method.

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Synthesis, Crystal Structure, and Thermal Decomposition Kinetics of Six New Lanthanide Complexes

Song,

Liu,

Zhao

et al. 2024

Applied Organom Chemis

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4,7-Substituted 1,10-phenanthroline-2,9-dicarboxamides: photophysics of ligands and their complexes with the Eu–Gd–Tb triad

Avagyan,

Lemport,

Polikovskiy

et al. 2024

Dalton Trans.

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First 4,7-oxygenated 1,10-phenanthroline-2,9-diamides: synthesis, tautomerism and complexation with REE nitrates

Abstract: A new family of phenanthroline ligands was prepared. Hydrolysis of 4,7-dihalogenated 1,10-phenanthroline-2,9-diamides in acidic media leads to the corresponding 4,7-oxygenated derivatives. These ligands can exist in different tautomeric forms. The...

Cited by 2 publications

References 52 publications

Synthesis, Crystal Structure, and Thermal Decomposition Kinetics of Six New Lanthanide Complexes

Synthesis, Crystal Structure, and Thermal Decomposition Kinetics of Six New Lanthanide Complexes

4,7-Substituted 1,10-phenanthroline-2,9-dicarboxamides: photophysics of ligands and their complexes with the Eu–Gd–Tb triad

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