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Article

Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate

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Institut für Physikalische and Theoretische Chemie, Technische Universität Graz, A-8010 Graz, Austria
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Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9/V, A-8010 Graz, Austria
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Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, Martí i Franquès 1-11, E-31321 Barcelona, Spain
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Departament de Mineralogia, Cristallografia i Dipòsits Minerals and Unitat de Difracció de R-X, Centre Científic i Tecnològic de la Universitat de Barcelona (CCiTUB), Universitat de Barcelona, Solé i Sabarís 1-3, 08028 Barcelona, Spain
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Department of Chemistry, University of Louisiana at Lafayette, P.O. Box 43700, Lafayette, LA 70504, USA
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Department of Chemistry, Faculty of Sciences, Alexandria University, Moharam Bey, Alexandria 21511, Egypt
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Authors to whom correspondence should be addressed.
Academic Editor: Wolfgang Linert
Received: 28 July 2021 / Revised: 24 September 2021 / Accepted: 28 September 2021 / Published: 30 September 2021
(This article belongs to the Section Coordination Chemistry)
Ten mononuclear rare earth complexes of formula [La(btfa)3(H2O)2] (1), [La(btfa)3(4,4′-Mt2bipy)] (2), [La(btfa)3(4,4′-Me2bipy)2] (3), [La(btfa)3(5,5′-Me2bipy)2] (4), [La(btfa)3(terpy)] (5), [La(btfa)3(phen)(EtOH)] (6), [La(btfa)3(4,4′-Me2bipy)(EtOH)] (7), [La(btfa)3(2-benzpy)(MeOH)] (8), [Tb(btfa)3(4,4′-Me2bipy)] (9) and (Hpy)[Eu(btfa)4] (10), where btfa = 4,4,4-trifuoro-1-phenylbutane-1,3-dionato anion, 4,4′-Mt2bipy = 4,4′-dimethoxy-2,2′-bipyridine, 4,4′-Me2bipy = 4,4′-dimethyl-2,2′-bipyridine, 5,5′-Me2bipy = 5,5′-dimethyl-2,2′-bipyridine, terpy = 2,2′:6′,2′-terpyridine, phen = 1,10-phenathroline, 2-benzpy = 2-(2-pyridyl)benzimidazole, Hpy = pyridiniumH+ cation) have been synthesized and structurally characterized. The complexes display coordination numbers (CN) eight for 1, 2, 9, 10, nine for 5, 6, 7, 8 and ten for 3 and 4. The solid-state luminescence spectra of Tb-9 and Eu-10 complexes showed the same characteristic bands predicted from the Tb(III) and Eu(III) ions. The Overall Quantum Yield measured (ϕTOT) at the excitation wavelength of 371 nm for both compounds yielded 1.04% for 9 and up to 34.56% for 10. View Full-Text
Keywords: lanthanum(III); terbium(III); europium(III); β-diketonate anion; luminescence; crystal structure lanthanum(III); terbium(III); europium(III); β-diketonate anion; luminescence; crystal structure
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MDPI and ACS Style

Mautner, F.A.; Bierbaumer, F.; Fischer, R.C.; Torvisco, A.; Vicente, R.; Font-Bardía, M.; Tubau, À.; Speed, S.; Massoud, S.S. Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate. Inorganics 2021, 9, 74. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics9100074

AMA Style

Mautner FA, Bierbaumer F, Fischer RC, Torvisco A, Vicente R, Font-Bardía M, Tubau À, Speed S, Massoud SS. Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate. Inorganics. 2021; 9(10):74. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics9100074

Chicago/Turabian Style

Mautner, Franz A., Florian Bierbaumer, Roland C. Fischer, Ana Torvisco, Ramon Vicente, Mercè Font-Bardía, Ànnia Tubau, Saskia Speed, and Salah S. Massoud 2021. "Diverse Coordination Numbers and Geometries in Pyridyl Adducts of Lanthanide(III) Complexes Based on β-Diketonate" Inorganics 9, no. 10: 74. https://0-doi-org.brum.beds.ac.uk/10.3390/inorganics9100074

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