Acta Cryst. (2010). E66, m1007 [ doi:10.1107/S1600536810028771 ]
Abstract: In the crystal structure of the title compound, [Co(H2O)6](C16H8O8), both the cation and anion are centrosymmetric. The Co cation displays a CoO6 octahedral geometry formed by six water molecules. In the anion, the two carboxyl groups are oriented at dihedral angles of 4.8 (5) and 10.4 (7)° with respect to the benzene ring. Very strong O-HO hydrogen bonds between the protonated and deprotonated carboxylate groups occur. Neighbouring cations and anions are connected through O-HO hydrogen bonds into a three-dimensional supramolecular structure.
Online 24 July 2010
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