1,4-Diazoniacyclohexane bis(3-carboxypyrazine-2-carboxylate) dihydrate
Hossein Eshtiagh-Hosseini, Nafiseh Alfi, Masoud Mirzaei and 1 more
Acta Crystallographica Section E · 2010
doi:10.1107/s1600536810040109 (opens in a new tab)
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Abstract
In the title compound, C4H12N22+·2C6H3N2O4−·2H2O or (1,4-dacH2)(pyzdcH)2·2H2O, the complete dication is generated by crystallographic inversion symmetry. An intramolecular O—H...O hydrogen bond occurs in the anion. In the crystal, O—H...O, O—H...N, N—H...O and N—H...N hydrogen bonds result in the formation of a three-dimensional network. Additionally, π–π stacking interactions between the pyrazine rings with centroid–centroid distances of 3.7065 (2) Å are observed.
Abstract licence: CC BY
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