Crystal structures and luminescent properties of terbium(III) carboxylates

Single crystals of three terbium(III) carboxylates of formulae [Tb2(CH3COO)6(H2O)4] ·4H2O (1), [Tb2(CF3COO)6(H2O)6] (2) and [Tb(Hoda)3]·H2oda·H2O (3) (H2oda=2,2′-oxydiacetic acid) were obtained and their structures determined by X-ray crystallography. Compounds 1 and 2 are dimeric, in the former the...

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Autores principales:	Barja, Beatriz Carmen, Aramendía, Pedro Francisco, Perec, Mireille
Publicado:	2003
Materias:	Crystal structures Luminescence Terbium(III) carboxylates acetic acid derivative carboxylic acid derivative copper complex terbium water aqueous solution article chemoluminescence crystal structure hydrogen bond infrared spectroscopy magnetism solid state X ray crystallography
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v346_n_p187_Barja http://hdl.handle.net/20.500.12110/paper_00201693_v346_n_p187_Barja
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00201693_v346_n_p187_Barja
record_format	dspace
spelling	paper:paper_00201693_v346_n_p187_Barja2023-06-08T14:40:50Z Crystal structures and luminescent properties of terbium(III) carboxylates Barja, Beatriz Carmen Aramendía, Pedro Francisco Perec, Mireille Crystal structures Luminescence Terbium(III) carboxylates acetic acid derivative carboxylic acid derivative copper complex terbium water aqueous solution article chemoluminescence crystal structure hydrogen bond infrared spectroscopy magnetism solid state X ray crystallography Single crystals of three terbium(III) carboxylates of formulae [Tb2(CH3COO)6(H2O)4] ·4H2O (1), [Tb2(CF3COO)6(H2O)6] (2) and [Tb(Hoda)3]·H2oda·H2O (3) (H2oda=2,2′-oxydiacetic acid) were obtained and their structures determined by X-ray crystallography. Compounds 1 and 2 are dimeric, in the former the terbium atoms are bound by two tridentate carboxylates in the μ2-bridging mode, whereas in the latter the bridging is fourfold with all carboxylates in the syn-syn coordination mode. Compound 3 is mononuclear containing three tridentate Hoda anions, and consecutive units are linked by a network of H-bonds involving the interstitial molecules. The luminescence spectra of the carboxylates were analyzed in the solid state and in aqueous solution. Comparison of the emission lifetimes in H2O and D2O allowed the determination of the average value for q, the number of coordinated water molecules, being 9.2 for 1 and 2 and 3.6 for 3, respectively. The quenching effect of Cu(II) on the luminescence of the terbium(III) carboxylates was evaluated through the emission decay constants. From the addition of Cu(II) to an aqueous solution of 3, single crystals of polymeric [{Cu3Tb2(oda)6(H2O)6} ·12H2O]n (4) were isolated with completely quenched luminescence. Compound 4 exhibits an overall antiferromagnetic interaction. © 2002 Elsevier Science B.V. All rights reserved. Fil:Barja, B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Aramendia, P.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Perec, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2003 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v346_n_p187_Barja http://hdl.handle.net/20.500.12110/paper_00201693_v346_n_p187_Barja
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Crystal structures Luminescence Terbium(III) carboxylates acetic acid derivative carboxylic acid derivative copper complex terbium water aqueous solution article chemoluminescence crystal structure hydrogen bond infrared spectroscopy magnetism solid state X ray crystallography
spellingShingle	Crystal structures Luminescence Terbium(III) carboxylates acetic acid derivative carboxylic acid derivative copper complex terbium water aqueous solution article chemoluminescence crystal structure hydrogen bond infrared spectroscopy magnetism solid state X ray crystallography Barja, Beatriz Carmen Aramendía, Pedro Francisco Perec, Mireille Crystal structures and luminescent properties of terbium(III) carboxylates
topic_facet	Crystal structures Luminescence Terbium(III) carboxylates acetic acid derivative carboxylic acid derivative copper complex terbium water aqueous solution article chemoluminescence crystal structure hydrogen bond infrared spectroscopy magnetism solid state X ray crystallography
description	Single crystals of three terbium(III) carboxylates of formulae [Tb2(CH3COO)6(H2O)4] ·4H2O (1), [Tb2(CF3COO)6(H2O)6] (2) and [Tb(Hoda)3]·H2oda·H2O (3) (H2oda=2,2′-oxydiacetic acid) were obtained and their structures determined by X-ray crystallography. Compounds 1 and 2 are dimeric, in the former the terbium atoms are bound by two tridentate carboxylates in the μ2-bridging mode, whereas in the latter the bridging is fourfold with all carboxylates in the syn-syn coordination mode. Compound 3 is mononuclear containing three tridentate Hoda anions, and consecutive units are linked by a network of H-bonds involving the interstitial molecules. The luminescence spectra of the carboxylates were analyzed in the solid state and in aqueous solution. Comparison of the emission lifetimes in H2O and D2O allowed the determination of the average value for q, the number of coordinated water molecules, being 9.2 for 1 and 2 and 3.6 for 3, respectively. The quenching effect of Cu(II) on the luminescence of the terbium(III) carboxylates was evaluated through the emission decay constants. From the addition of Cu(II) to an aqueous solution of 3, single crystals of polymeric [{Cu3Tb2(oda)6(H2O)6} ·12H2O]n (4) were isolated with completely quenched luminescence. Compound 4 exhibits an overall antiferromagnetic interaction. © 2002 Elsevier Science B.V. All rights reserved.
author	Barja, Beatriz Carmen Aramendía, Pedro Francisco Perec, Mireille
author_facet	Barja, Beatriz Carmen Aramendía, Pedro Francisco Perec, Mireille
author_sort	Barja, Beatriz Carmen
title	Crystal structures and luminescent properties of terbium(III) carboxylates
title_short	Crystal structures and luminescent properties of terbium(III) carboxylates
title_full	Crystal structures and luminescent properties of terbium(III) carboxylates
title_fullStr	Crystal structures and luminescent properties of terbium(III) carboxylates
title_full_unstemmed	Crystal structures and luminescent properties of terbium(III) carboxylates
title_sort	crystal structures and luminescent properties of terbium(iii) carboxylates
publishDate	2003
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00201693_v346_n_p187_Barja http://hdl.handle.net/20.500.12110/paper_00201693_v346_n_p187_Barja
work_keys_str_mv	AT barjabeatrizcarmen crystalstructuresandluminescentpropertiesofterbiumiiicarboxylates AT aramendiapedrofrancisco crystalstructuresandluminescentpropertiesofterbiumiiicarboxylates AT perecmireille crystalstructuresandluminescentpropertiesofterbiumiiicarboxylates
_version_	1768546099134464000

Crystal structures and luminescent properties of terbium(III) carboxylates

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