Tricaesium tris(pyridine-2,6-dicarboxylato)lutetium(III) octahydrate - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Acta Crystallographica [1948-1967] Année : 2008

Tricaesium tris(pyridine-2,6-dicarboxylato)lutetium(III) octahydrate

Vincent Legrand
Anthony d'Aléo
Olivier Maury

Résumé

Colourless block crystals of the title compound, Cs3[Lu(dipic)3]·8H2O [dipic is dipicolinate or pyridine-2,6-dicarboxyl­ate, C7H3NO4] were synthesized by slow evaporation of the solvent. The crystal structure of this LuIII-complex, isostructural with the DyIII and EuIII complexes, was determined from a crystal twinned by inversion and consists of discrete [Lu(dipic)3]3− anions, Cs+ cations and water mol­ecules involving hydrogen bonding. The Lu atom lies on a twofold rotation axis and is coordinated by six O atoms and three N atoms of three dipicolinate ligands. One Cs atom is also on a twofold axis. The unit cell can be regarded as successive layers along the crystallographic c-axis formed by [Lu(dipic)3]3− anionic planes and [Cs+, H2O] cationic planes. In the crystal structure, although the H atoms attached to water mol­ecules could not be located, short O—O contacts clearly indicate the occurrence of an intricate hydrogen-bonded network through contacts with other water mol­ecules, Cs cations or with the O atoms of the dipicolinate ligands.
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hal-01007401 , version 1 (29-04-2018)

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Citer

Vincent Legrand, Flavien Aubert, Anthony d'Aléo, Philippe Rabiller, Olivier Maury. Tricaesium tris(pyridine-2,6-dicarboxylato)lutetium(III) octahydrate. Acta Crystallographica [1948-1967], 2008, E64 (10), pp.1280-1281. ⟨10.1107/S1600536808029243⟩. ⟨hal-01007401⟩
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