Acta Cryst. (2007). E63, m316-m318  [ doi:10.1107/S1600536806054559 ]

Tetrasodium(I) pentaoxalatodilanthanate(III) dihydrate

H. Lu, Y.-L. Fu, J.-Y. Yang and S. W. Ng

Abstract: The La atom in the title compound, Na₄[La₂(C₂O₄)₅]·2H₂O, is chelated by five oxalate groups in a bicapped square-antiprismatic geometry; one oxalate ligand is located on a centre of inversion. All oxalate groups function in a ₂-bridging mode, resulting in a three-dimensional network architecture. The Na⁺ cations are octahedrally coordinated by oxalate O atoms and water molecules, the latter bridging pairs of cations.

Online 6 January 2007

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