Crystal structure of 1H,1′H-[2,2′-biimidazol]-3-ium hydrogen tartrate hemihydrate
| Autor: | Xiao-Li Gao, Li-Fang Bian, Shao-Wei Guo |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Acta Crystallographica Section E, Vol 70, Iss 11, Pp o1221-o1222 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1600-5368 16005368 |
| DOI: | 10.1107/S160053681402371X |
| Popis: | In the crystal of the title hydrated salt, C6H7N4+·C4H5O6−·0.5H2O, the biimidazole monocation, 1H,1′H-[2,2′-biimidazol]-3-ium, is hydrogen bonded, via N—H...O, O—H...O and O—H...N hydrogen bonds, to the hydrogen tartrate anion and the water molecule, which is located on a twofold rotation axis, forming sheets parallel to (001). The sheets are linked via C—H...O hydrogen bonds, forming a three-dimensional structure. There are also C=O...π interactions present [O...π distances are 3.00 (9) and 3.21 (7) Å], involving the carbonyl O atoms and the imidazolium ring, which may help to consolidate the structure. In the cation, the dihedral angle between the rings is 11.6 (2)°. |
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