Comptes Rendus Chimie · 2010 · 28 citations · 48 references
Natural SciencesChemistryMaterials ScienceInorganic ChemistryMaterials ChemistrySolid-state ChemistryCluster CompoundsCoordination ChemistryHybrid MaterialsHybrid NanomaterialsLanthanide ChemistryTransition Metal ComplexesLanthanide ComplexesLanthanide Coordination ChemistryLanthanide Electronic StructureLanthanide HydridesLanthanide Organometallic ChemistryMolecular PrecursorsOrganic-inorganic Hybrid Materials
Lanthanide containing octahedral hexanuclear complexes with general chemical formula [Ln 6 O(OH) 8 (NO 3 ) 6 (H 2 O) x ].2NO 3 . y H 2 O where Ln = Ce–Lu (except Pm) or Y, x = 0, 6, 12, 14 or 16 and y = 0, 2, 4 or 5 constitute a great family of polymorphic compounds. The synthesis and the crystal structures of all these compounds are overviewed. The hydration/dehydration processes that allow the structural transitions from one compound to another are described. The crystal structure of compounds with general chemical formula [Ln 6 O(OH) 8 (NO 3 ) 6 (H 2 O) 6 ].2NO 3 where Ln = Ce–Lu (except Pm) or Y is described. It has been solved on the basis of a powder XRD diagram. The use of such hexanuclear complexes as molecular precursors for new materials is also discussed.
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