Acta Cryst. (2009). E65, m580  [ doi:10.1107/S1600536809015074 ]

Poly[(-benzene-1,2,4,5-tetracarboxylato)tetrasilver(I)]

M. N. Tahir, O. Atakol and M. I. Tariq

Abstract: In the centrosymmetric title compound, [Ag₄(C₁₀H₂O₈)]_n, the benzene ring has irregular bond lengths but remains planar (r.m.s. deviation 0.0002 Å). The Ag-O bond lengths are in the range 2.153 (3)-2.615 (4) Å. The carboxylate groups are oriented at dihedral angles of 26.4 (5) and 74.9 (4)° to the benzene ring. The coordination behaviour of each carboxylate O atom is different: in one carboxylate, the O atoms are coordinated to a single and two Ag atoms; in the other carboxylate, the O atoms are coordinated to two and three Ag atoms. Non-classical intermolecular C-HO hydrogen bonding is present in the crystal structure. The title compound forms a three-dimensional polymeric network due to the coordination of the Ag atoms.

Online 30 April 2009

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