Comparison of Photophysical Properties of Lanthanide(III) Complexes of DTTA- or DO3A-Appended Aryl-2,2'-Bipyridines.

Autor:	Krinochkin AP; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya St., Yekaterinburg 62099, Russia., Valieva MI; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya St., Yekaterinburg 62099, Russia., Starnovskaya ES; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya St., Yekaterinburg 62099, Russia., Shtaitz YK; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia., Kopchuk DS; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya St., Yekaterinburg 62099, Russia., Taniya OS; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya St., Yekaterinburg 62099, Russia., Kim GA; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya St., Yekaterinburg 62099, Russia., Shevyrin VA; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia., Zyryanov GV; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya St., Yekaterinburg 62099, Russia., Chupakhin ON; Chemical Engineering Institute, Ural Federal University, 19 Mira St., Yekaterinburg 620002, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS, Ural Division, 22/20 S. Kovalevskoy/Akademicheskaya St., Yekaterinburg 62099, Russia.
Jazyk:	angličtina
Zdroj:	Molecules (Basel, Switzerland) [Molecules] 2023 Jan 11; Vol. 28 (2). Date of Electronic Publication: 2023 Jan 11.
DOI:	10.3390/molecules28020724
Abstrakt:	New Tb(III) and Eu(III) complexes based on aryl-2,2'-bipyridine ligands with a cyclic DO3A chelating unit appended in the alpha position of the bipyridine core were synthesized. The photophysical properties of these complexes were compared with those of complexes of ligands with identical aryl-2,2'-bipyridine chromophores, but with an acyclic DTTA residue as an additional chelating site in the alpha position of the bipyridine core. The nature of the polyaminocarboxylic acid fragments was found to have a significant influence on the luminescence. For some of the Eu(III) complexes, upon the transition from acyclic DTTA- to the cyclic DO3A-appended ligands, a noticeable increase in the intensity of Eu(III) luminescence was observed, with an increase in the quantum yield of up to 2.55 times. In contrast, for most of the Tb(III) complexes, a similar transition resulted in a noticeable decrease in the luminescence intensity of the Tb(III) cation.
Databáze:	MEDLINE
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