Acta Cryst. (2009). E65, m789-m790  [ doi:10.1107/S1600536809022272 ]

Poly[diethylenetriammonium [aquadi-₂-sulfato-sulfatolanthanum(III)]]

Y.-R. Wang, Y.-S. Hu, C.-L. Shi, D.-P. Li and Y.-F. Li

Abstract: In the title compound, {(C₄H₁₆N₃)[La(SO₄)₃(H₂O)]}_n, the La atom adopts an irregular LaO₉ coordination geometry, including one bonded water molecule. The three sulfate groups adopt both monodentate and bidentate coordination to the metal ions. Two of the sulfate groups serve as bridges in the (100) and (010) directions, yielding infinite sheets, whereas the third is pendant to one La³⁺ cation. The protonated organic species interacts with the layers by way of N-HO hydrogen bonds, and O-HO hydrogen bonds involving aqua ligands also occur.

Online 17 June 2009

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