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Bis(2,6-diaminopyridinium) bis(hydrogen oxalate) monohydrate
The asymmetric unit of the title compound, 2C(5)H(8)N(3) (+)·2C(2)HO(4) (−)·H(2)O, contains two crystallographically independent 2,6-diaminopyridinium cations, a pair of hydrogen oxalate anions and a water molecule. Both 2,6-diaminopyridinium cations are planar, with maximum deviations of 0.011 (...
| Autores principales: | , , , , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
International Union of Crystallography
2011
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3052081/ https://www.ncbi.nlm.nih.gov/pubmed/21522352 http://dx.doi.org/10.1107/S1600536811004119 |
| Sumario: | The asymmetric unit of the title compound, 2C(5)H(8)N(3) (+)·2C(2)HO(4) (−)·H(2)O, contains two crystallographically independent 2,6-diaminopyridinium cations, a pair of hydrogen oxalate anions and a water molecule. Both 2,6-diaminopyridinium cations are planar, with maximum deviations of 0.011 (2) and 0.015 (1) Å, and are protonated at the pyridine N atoms. The hydrogen oxalate anions adopt twisted conformations and the dihedral angles between the planes of their carboxyl groups are 31.01 (11) and 63.48 (11)°. In the crystal, the cations, anions and water molecules are linked via O—H⋯O and N—H⋯O hydrogen bonds, forming a three-dimensional network. |
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