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International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 12(67), p. m1857-m1857, 2011

DOI: 10.1107/s1600536811050276

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Poly[(aqua­calcium)-μ4-pyrazine-2,3-di­carboxyl­ato]

Journal article published in 2011 by Qing-Feng Yang, Yue-Ping Zhang, Jing Lu, Ping Xue, Zheng Wang
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The polymeric title compound, [Ca(C6H2N2O4)(H2O)]n, was synthesized from pyrazine-2,3-dicarb­oxy­lic acid and calcium dichloride under hydro­thermal conditions. The Ca2+ cation is seven-coordinated by five O atoms and one N atom of four pyrazine-2,3-dicarboxyl­ate anions, and one water mol­ecule. The complete deprotonated pyrazine-2,3-dicarboxyl­ate anion adopts a μ4-coordination mode, resulting in the formation of a three-dimensional structure.