Luminescent Binuclear Eu(III) and Tb(III) Complexes Based on 3,6-bis(Diphenylphosphinyl)Pyridazine

Luminescent Binuclear Eu(III) and Tb(III) Complexes Based on 3,6-bis(Diphenylphosphinyl)Pyridazine Full article

Journal

Journal of Structural Chemistry
ISSN: 1573-8779 , E-ISSN: 0022-4766

Output data

Year: 2024, Volume: 65, Number: 8, Pages: 1612-1623 Pages count : 12 DOI: 10.1134/s0022476624080122

Tags

lanthanides, molecular complexes, phosphine oxides, structure, photoluminescence

Authors

Bryleva Yu.A. ¹ , Glinskaya L.A. ¹ , Samsonenko D.G. ¹ , Rakhmanova M.I. ¹ , Artem´ev A.V. ¹

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

Isostructural binuclear complexes [Ln2L2(hfac)6] (Ln = Eu, Tb; hfac– = hexafluoroacetylacetonate ion) are synthesized by the interaction of [Ln(hfac)3(H2O)2] with 3,6-bis(diphenylphosphinyl)pyridazine (L). According to the single-crystal XRD data, two Ln(hfac)3 moieties in the complexes are connected by two O,O´-bidentate-bridging ligands L, and the coordination polyhedron Ln@O8 has the geometry of a triangular dodecahedron. The Eu3+ and Tb3+ complexes exhibit characteristic lanthanide-centered photoluminescence in the solid state at 297 K with luminescence quantum yields of 31% and 2% and excited state lifetimes of 707 and 30 μs, respectively, thus indicating that luminescence sensitization by the ligand environment is more effective for Eu3+ than for Tb3+.

Bryleva Y.A. , Glinskaya L.A. , Samsonenko D.G. , Rakhmanova M.I. , Artem´ev A.V.
Luminescent Binuclear Eu(III) and Tb(III) Complexes Based on 3,6-bis(Diphenylphosphinyl)Pyridazine
Journal of Structural Chemistry. 2024. V.65. N8. P.1612-1623. DOI: 10.1134/s0022476624080122 WOS Scopus РИНЦ OpenAlex

Брылева Ю.А. , Глинская Л.А. , Самсоненко Д.Г. , Рахманова М.И. , Артемьев А.В.
Люминесцентные биядерные комплексы Eu(III) и Tb(III) на основе 3,6-бис(дифенилфосфинил)пиридазина
Журнал структурной химии. 2024. Т.65. №8. 131355 :1-12. DOI: 10.26902/jsc_id131355 РИНЦ OpenAlex

Submitted:	Apr 17, 2024
Accepted:	Apr 19, 2024
Published print:	Sep 4, 2024
Published online:	Sep 4, 2024

Web of science:	WOS:001306474000011
Scopus:	2-s2.0-85203268025
Elibrary:	69094892
OpenAlex:	W4402242060

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