Acta Cryst. (2003). E59, m481-m482  [ doi:10.1107/S1600536803013060 ]

Hexaaquacobalt(II) 3-carboxy-4-hydroxybenzenesulfonate tetrahydrate

J.-F. Ma, J. Yang and J.-F. Liu

Abstract: In the title compound, [Co(H₂O)₆]L₂·4H₂O, where HL = 3-carboxy-4-hydroxybenzenesulfonic acid (C₇H₆O₆S), each Co^II cation lies on an inversion center and is octahedrally coordinated by six water molecules. The L^- anions do not coordinate to cobalt, but act as counter-anions. The crystal structure is composed of alternating layers of [Co(H₂O)₆]²⁺ cations and sulfonate anions. The [Co(H₂O)₆]²⁺ cations, water molecules and L^- anions are connected through a complex pattern of hydrogen-bonding interactions.

Online 24 June 2003

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