Acta Cryst. (2009). E65, m450-m451  [ doi:10.1107/S1600536809010514 ]

Bis[4-(4-pyridyl)pyridinium] (4-carboxypyridine-2,6-dicarboxylato-³O²,N,O⁶)(pyridine-2,4,6-tricarboxylato-³O²,N,O⁶)ferrate(III) trihydrate

L. Zhao, Y.-R. Dong and H.-Z. Xie

Abstract: In the title salt, (C₁₀H₉N₂)₂[Fe(C₈H₂NO₆)(C₈H₃NO₆)]·3H₂O, the Fe^III atom is O,N,O'-chelated by dianionic and trianionic ligands in a slightly distorted octahedral coordination geometry. The cations and ferrate anions are linked into a layered structure; the layers are connected through the uncoordinated water molecules into a hydrogen-bonded three-dimensional supramolecular structure. One of the uncoordinated water molecules is disordered around an inversion centre and was refined with half-occupancy for each position.

Online 28 March 2009

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