title: Rare earth anthracenedicarboxylate metal-organic frameworks: slow relaxation of magnetization of Nd(3+), Gd(3+), Dy(3+), Er(3+) and Yb(3+) based materials.
abstract: We have synthesized a new family of metal-organic-frameworks (MOFs) based on a 9,10-anthracenedicarboxylate linker. We report the formation of lanthanide-based MOFs using soft solvothermal routes with dimethylformamide as a solvent. These materials display intense photoluminescence properties in the solid state at room temperature. What is more interesting is, some of them exhibit slow relaxation of magnetization with activation barriers of 22.9, 15.4, 52.7, 13.0 and 16.2 K for Nd(3+), Gd(3+), Dy(3+), Er(3+) and Yb(3+), respectively. To the best of our knowledge, Nd(3+) and Yb(3+) materials are the first examples of 3D- and 2D-MOFs, respectively, that show slow relaxation of magnetization.
authors.affiliation: Department of Inorganic Chemistry, University of Granada, 18071, Granada, Spain. ecolacio@ugr.es antonio5@ugr.es.
authors.forename: Antonio J
authors.initials: AJ
authors.lastname: Calahorro
authors.affiliation: Department of Applied Chemistry, Chemistry Faculty, The University of the Basque Country UPV/EHU, 20018, Donostia-San Sebastián, Spain. josemanuel.seco@ehu.es.
authors.forename: Itziar
authors.initials: I
authors.lastname: Oyarzabal
authors.affiliation: Department of Inorganic Chemistry, University of Granada, 18071, Granada, Spain. ecolacio@ugr.es antonio5@ugr.es.
authors.forename: Belén
authors.initials: B
authors.lastname: Fernández
authors.affiliation: Department of Applied Chemistry, Chemistry Faculty, The University of the Basque Country UPV/EHU, 20018, Donostia-San Sebastián, Spain. josemanuel.seco@ehu.es.
authors.forename: José M
authors.initials: JM
authors.lastname: Seco
authors.affiliation: Department of Chemical Engineering & Biotechnology, University of Cambridge, UK.
authors.forename: Tian
authors.initials: T
authors.lastname: Tian
authors.affiliation: Department of Chemical Engineering & Biotechnology, University of Cambridge, UK.
authors.forename: David
authors.initials: D
authors.lastname: Fairen-Jimenez
authors.affiliation: Department of Inorganic Chemistry, University of Granada, 18071, Granada, Spain. ecolacio@ugr.es antonio5@ugr.es.
authors.forename: Enrique
authors.initials: E
authors.lastname: Colacio
authors.affiliation: Department of Inorganic Chemistry, University of Granada, 18071, Granada, Spain. ecolacio@ugr.es antonio5@ugr.es.
authors.forename: Antonio
authors.initials: A
authors.lastname: Rodríguez-Diéguez