Acta Crystallographica Section E: Crystallographic Communications | |
Stoichiometric and polymorphic salt of imidazolium picrate monohydrate | |
Liu, L.1  | |
[1] Renmin Hospital of Wuhan University, Wuhan 430060, People's Republic of China | |
关键词: CRYSTAL STRUCTURE; CO-CRYSTAL SALT; IMIDAZOLE; PICRIC ACID; | |
DOI : 10.1107/S2056989017016401 | |
学科分类:数学(综合) | |
来源: International Union of Crystallography | |
【 摘 要 】
The asymmetric unit of the title co-crystal salt, 1H-imidazol-3-ium 2,4,6-trinitrophenolate monohydrate, C4H7N2+·C6H2N3O7−·H2O, contains one imidazolium cation, one picrate anion and one solvent water molecule of crystallization. The phenolic proton has been transferred to an imidazole N atom. In the crystal, the components are linked by N—H⋯O and O—H⋯O hydrogen bonds into a three-dimensional network which is further consolidated by weak C—H⋯O hydrogen bonds. In addition, π–π stacking interactions occur between pairs of imidazolium cations and picrate anions. If only the classical N—H⋯O and O—H⋯O hydrogen bonds are considered, the component ions are linked into a three-dimensional threefold interpenetrating network of the topological type utp [or (10,3)-d]. Hirshfeld surface analysis indicates the crystal structure is mainly stabilized by H⋯·O contacts of the hydrogen bonds.
【 授权许可】
CC BY
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