Acta Cryst. (2011). E67, m837-m838  [ doi:10.1107/S1600536811019209 ]

Poly[dimethylammonium [aquadi-₂-oxalato-yttriate(III)] trihydrate]

Y.-K. Lv, L.-H. Gan, L. Xu, H.-W. Zheng and C. Liu

Abstract: The title complex, {(C₂H₈N)[Y(C₂O₄)₂(H₂O)]·3H₂O}_n, was obtained accidentally under hydrothermal conditions. The Y^III atom is chelated by four oxalate ligands and one water molecule resulting in a distorted tricapped trigonal-prismatic geometry. Each oxalate ligand bridges two Y^III atoms, thus generating a three-dimensional network with cavities in which the ammonium cations and lattice water molecules reside. Various O-HO and N-HO hydrogen-bonding interactions stabilize the crystal structure. The title complex is isotypic with the Eu and Dy analogues.

Online 4 June 2011

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