New Family of Porous Lanthanide-Containing Coordination Polymers: [Ln2(C2O4)3(H2O)6,12H2O]∞ with Ln = La−Yb or Y

Autor: Stéphane Freslon, Olivier Guillou, Guillaume Calvez, Nicolas Kerbellec, Carole Daiguebonne, Doddy Kustaryono
Přispěvatelé: Sciences Chimiques de Rennes / Matériaux Inorganiques: Chimie Douce et Réactivité (MICDR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Centre National de la Recherche Scientifique (CNRS), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2009
Předmět:
Zdroj: Crystal Growth & Design
Crystal Growth & Design, American Chemical Society, 2010, 10 (2), pp.775-781. ⟨10.1021/cg9011668⟩
Crystal Growth & Design, 2010, 10 (2), pp.775-781. ⟨10.1021/cg9011668⟩
ISSN: 1528-7505
1528-7483
DOI: 10.1021/cg9011668
Popis: International audience; Reactions at low temperature in a mixture benzene/water between dimethyloxalate and a lanthanide chloride lead to a family of 3D-coordination polymers with general chemical formula [Ln2(C2O4)3(H2O)6 3 12H2O]¥, where Ln=La-Yb (except Pm) or Y. All these compounds are isostructural to the already described [Er2(C2O4)3(H2O)6 3 12H2O]¥. Their crystal structure can be described as the juxtaposition of channels with hexagonal cross-section. The channels are filled with crystallization water molecules. Their thermal dehydration produces a collapse of the molecular skeleton leading to amorphous compounds.On the opposite, their dehydration by freeze-drying is possible and the twelve crystallization water molecules can be removed without destruction of the molecular skeleton. The porosity of the dehydrated compounds has been estimated by computational methods to 483 m2 g-1. The luminescence properties of the Eu-containing and Tb-containing compounds are also briefly described.
Databáze: OpenAIRE