Acta Cryst. (2005). E61, m282-m284  [ doi:10.1107/S1600536805000516 ]

Poly[di--aqua-bis(₈-3-carboxylato-4-hydroxybenzenesulfonato)tetrasilver(I)]

S. Gao, Z.-B. Zhu, L.-H. Huo and S. W. Ng

Abstract: In the polymeric title compound, [Ag₄(C₇H₄O₆S)₂(H₂O)₂]_n, the 3-carboxylato-4-hydroxybenzenesulfonate anion uses its hydroxy (-OH) unit to bind to an Ag atom and its sulfonyl (-SO₃) unit to bind to five Ag atoms; it uses its carboxylate (-CO₂) group to bridge an Ag-Ag [Ag-Ag = 2.7778 (8) Å] unit. The bonding mode gives rise to a three-dimensional network structure that is consolidated by hydrogen bonds involving the coordinated water molecules. The four Ag atoms in the asymmetric unit all lie on special positions of site symmetry 2.

Online 15 January 2005

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