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Poly[(aqua-calcium)-?(4)-pyrazine-2,3-di-carboxyl-ato].

ABSTRACT: The polymeric title compound, [Ca(C(6)H(2)N(2)O(4))(H(2)O)](n), was synthesized from pyrazine-2,3-dicarb-oxy-lic acid and calcium dichloride under hydro-thermal conditions. The Ca(2+) cation is seven-coordinated by five O atoms and one N atom of four pyrazine-2,3-dicarboxyl-ate anions, and one water mol-ecule. The complete deprotonated pyrazine-2,3-dicarboxyl-ate anion adopts a ?(4)-coordination mode, resulting in the formation of a three-dimensional structure.

SUBMITTER: Yang QF 

PROVIDER: S-EPMC3238750 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

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Poly[(aqua-calcium)-μ(4)-pyrazine-2,3-di-carboxyl-ato].

Yang Qing-Feng QF   Zhang Yue-Ping YP   Lu Jing J   Xue Ping P   Wang Zheng Z  

Acta crystallographica. Section E, Structure reports online 20111130 Pt 12

The polymeric title compound, [Ca(C(6)H(2)N(2)O(4))(H(2)O)](n), was synthesized from pyrazine-2,3-dicarb-oxy-lic acid and calcium dichloride under hydro-thermal conditions. The Ca(2+) cation is seven-coordinated by five O atoms and one N atom of four pyrazine-2,3-dicarboxyl-ate anions, and one water mol-ecule. The complete deprotonated pyrazine-2,3-dicarboxyl-ate anion adopts a μ(4)-coordination mode, resulting in the formation of a three-dimensional structure. ...[more]

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