Redetermination of di­aqua­tris­(4-oxo­pent-2-en-2-olato-κ2OO′)lanthanum(III)

摘要

The structure of the title compound, [La(C5H7O2)3(H2O)2], has been redetermined to modern standards with anisotropic displacement parameters for all non-H atoms and the hydrogen-bonding pattern unambiguously established [for the previous study, see Phillips et al. (1968). Inorg. Chem. >7, 2295–2299]. The La³⁺ ion is coordinated by three O,O′-bidentate acetyl­acetate (acac⁻) ligands and two water mol­ecules, resulting in a fairly regular square-anti­prismatic LaO8 coordination geometry, with both aqua ligands part of the same square face. In the crystal, the neutral complex mol­ecules are linked into [110] chains by O—H⋯O hydrogen bonds.