Exploring the Slow Magnetic Relaxation of a Family of Photoluminescent 3D Lanthanide–Organic Frameworks Based on Dicarboxylate Ligands
A family of metal–organic frameworks with general formula {[Nd<sub>2</sub>(ant)<sub>2</sub>((NH<sub>2</sub>)<sub>2</sub>-bdc)(DMF)<sub>4</sub>]·2DMF}<sub>n</sub> (<b>1</b>) and {[Ln<sub>2</sub>(ant)<su...
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doaj-ad5a9349c7b444bca50312a20a18bc132021-03-17T00:04:21ZengMDPI AGMagnetochemistry2312-74812021-03-017414110.3390/magnetochemistry7030041Exploring the Slow Magnetic Relaxation of a Family of Photoluminescent 3D Lanthanide–Organic Frameworks Based on Dicarboxylate LigandsItziar Oyarzabal0Sara Rojas1Ana D. D. Parejo2Alfonso Salinas-Castillo3José Ángel Ángel García4José M. M. Seco5Javier Cepeda6Antonio Rodríguez-Diéguez7BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, SpainDepartamento de Química Inorgánica, UEQ, Facultad de Ciencias, Universidad de Granada, 18071 Granada, SpainDepartamento de Química Inorgánica, UEQ, Facultad de Ciencias, Universidad de Granada, 18071 Granada, SpainDepartamento de Química Analítica, UEQ, Facultad de Ciencias, Universidad de Granada, 18071 Granada, SpainDepartamento de Física Aplicada II, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), 48940 Leioa, SpainDepartamento de Química Aplicada, Facultad de Química, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), 20018 Donostia, SpainDepartamento de Química Aplicada, Facultad de Química, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), 20018 Donostia, SpainDepartamento de Química Inorgánica, UEQ, Facultad de Ciencias, Universidad de Granada, 18071 Granada, SpainA family of metal–organic frameworks with general formula {[Nd<sub>2</sub>(ant)<sub>2</sub>((NH<sub>2</sub>)<sub>2</sub>-bdc)(DMF)<sub>4</sub>]·2DMF}<sub>n</sub> (<b>1</b>) and {[Ln<sub>2</sub>(ant)<sub>2</sub>((NH<sub>2</sub>)<sub>2</sub>-bdc)(DMF)<sub>4</sub>]·2DMF·2H<sub>2</sub>O}<sub>n</sub> (Ln = Tb (<b>2</b>), Ho (<b>3</b>), and Er (<b>4</b>)) has been obtained from reactions between 9,10-anthracenedicarboxylic (H<sub>2</sub>ant) and 2,5-diaminoterephthalic ((NH<sub>2</sub>)<sub>2</sub>-H<sub>2</sub>bdc) acids, and lanthanide ions in dimethylformamide (DMF). These lanthanide–organic frameworks (LnOFs) have been characterized, and their crystal structures have been elucidated by single crystal and powder X-ray diffraction methods (on the basis of a comparative refinement with similar structures), respectively for <b>1</b> and <b>2</b>–<b>4</b>. All LnOFs present three-dimensional structures composed of dinuclear [Ln<sub>2</sub>(µ-CO<sub>2</sub>)<sub>4</sub>] entities linked through both carboxylate ligands that yield open frameworks in which DMF and water molecules are located in the channels. Magnetic studies of these LnOFs have revealed slow relaxation of the magnetization for the Nd-based counterpart. The compounds also acknowledge relevant photoluminescence (PL) emissions in the visible (for the Tb-based homologue) and near-infrared (for the Nd- and Er-based compounds) regions. The strong green emission yielded by compound <b>2</b> at room temperature allows its study for photoluminescence (PL) sensing of various solvent molecules, finding a particular discrimination for acetone.https://www.mdpi.com/2312-7481/7/3/41lanthanide–organic frameworks9,10-anthracenedicarboxylate2,5-diaminoterephthalatedinuclear building unitphotoluminescenceslow relaxation of magnetization |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Itziar Oyarzabal Sara Rojas Ana D. D. Parejo Alfonso Salinas-Castillo José Ángel Ángel García José M. M. Seco Javier Cepeda Antonio Rodríguez-Diéguez |
spellingShingle |
Itziar Oyarzabal Sara Rojas Ana D. D. Parejo Alfonso Salinas-Castillo José Ángel Ángel García José M. M. Seco Javier Cepeda Antonio Rodríguez-Diéguez Exploring the Slow Magnetic Relaxation of a Family of Photoluminescent 3D Lanthanide–Organic Frameworks Based on Dicarboxylate Ligands Magnetochemistry lanthanide–organic frameworks 9,10-anthracenedicarboxylate 2,5-diaminoterephthalate dinuclear building unit photoluminescence slow relaxation of magnetization |
author_facet |
Itziar Oyarzabal Sara Rojas Ana D. D. Parejo Alfonso Salinas-Castillo José Ángel Ángel García José M. M. Seco Javier Cepeda Antonio Rodríguez-Diéguez |
author_sort |
Itziar Oyarzabal |
title |
Exploring the Slow Magnetic Relaxation of a Family of Photoluminescent 3D Lanthanide–Organic Frameworks Based on Dicarboxylate Ligands |
title_short |
Exploring the Slow Magnetic Relaxation of a Family of Photoluminescent 3D Lanthanide–Organic Frameworks Based on Dicarboxylate Ligands |
title_full |
Exploring the Slow Magnetic Relaxation of a Family of Photoluminescent 3D Lanthanide–Organic Frameworks Based on Dicarboxylate Ligands |
title_fullStr |
Exploring the Slow Magnetic Relaxation of a Family of Photoluminescent 3D Lanthanide–Organic Frameworks Based on Dicarboxylate Ligands |
title_full_unstemmed |
Exploring the Slow Magnetic Relaxation of a Family of Photoluminescent 3D Lanthanide–Organic Frameworks Based on Dicarboxylate Ligands |
title_sort |
exploring the slow magnetic relaxation of a family of photoluminescent 3d lanthanide–organic frameworks based on dicarboxylate ligands |
publisher |
MDPI AG |
series |
Magnetochemistry |
issn |
2312-7481 |
publishDate |
2021-03-01 |
description |
A family of metal–organic frameworks with general formula {[Nd<sub>2</sub>(ant)<sub>2</sub>((NH<sub>2</sub>)<sub>2</sub>-bdc)(DMF)<sub>4</sub>]·2DMF}<sub>n</sub> (<b>1</b>) and {[Ln<sub>2</sub>(ant)<sub>2</sub>((NH<sub>2</sub>)<sub>2</sub>-bdc)(DMF)<sub>4</sub>]·2DMF·2H<sub>2</sub>O}<sub>n</sub> (Ln = Tb (<b>2</b>), Ho (<b>3</b>), and Er (<b>4</b>)) has been obtained from reactions between 9,10-anthracenedicarboxylic (H<sub>2</sub>ant) and 2,5-diaminoterephthalic ((NH<sub>2</sub>)<sub>2</sub>-H<sub>2</sub>bdc) acids, and lanthanide ions in dimethylformamide (DMF). These lanthanide–organic frameworks (LnOFs) have been characterized, and their crystal structures have been elucidated by single crystal and powder X-ray diffraction methods (on the basis of a comparative refinement with similar structures), respectively for <b>1</b> and <b>2</b>–<b>4</b>. All LnOFs present three-dimensional structures composed of dinuclear [Ln<sub>2</sub>(µ-CO<sub>2</sub>)<sub>4</sub>] entities linked through both carboxylate ligands that yield open frameworks in which DMF and water molecules are located in the channels. Magnetic studies of these LnOFs have revealed slow relaxation of the magnetization for the Nd-based counterpart. The compounds also acknowledge relevant photoluminescence (PL) emissions in the visible (for the Tb-based homologue) and near-infrared (for the Nd- and Er-based compounds) regions. The strong green emission yielded by compound <b>2</b> at room temperature allows its study for photoluminescence (PL) sensing of various solvent molecules, finding a particular discrimination for acetone. |
topic |
lanthanide–organic frameworks 9,10-anthracenedicarboxylate 2,5-diaminoterephthalate dinuclear building unit photoluminescence slow relaxation of magnetization |
url |
https://www.mdpi.com/2312-7481/7/3/41 |
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