Acta Cryst. (2003). E59, m731-m733  [ doi:10.1107/S1600536803016921 ]

Disodium bis(1,2,4,5-benzenetetracarboxylato)dihydroxytetrazincate(II) pyrazine

S.-Y. Yang, L.-S. Long, R.-B. Huang, L.-S. Zheng and S. W. Ng

Abstract: The tetranuclear dianion of the title compound, Na₂[Zn₄(C₁₀H₂O₈)₂(OH)₂]·C₄H₄N₂, forms a network framework in which the Zn atom exists in a tetrahedral environment, as it is coordinated by the carboxyl O atoms belonging to three different (C₁₀H₂O₈)^4- anions as well as by the bridging OH group. Adjacent OH groups are linked together through the uncoordinated heterocycle, which lies on a site of 2/m symmetry. The octahedrally coordinated Na ion, which lies on a site of 2 symmetry, interacts with one O atom of the carboxyl group of two anions and with two O atoms of the ortho-carboxyl groups of two other anions.

Online 15 August 2003

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