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Three 4-(4-fluorophenyl)piperazin-1-ium salts containing organic anions: supramolecular assembly in one, two and three dimensions
Three salts containing the 4-(4-fluorophenyl)piperazin-1-ium cation have been prepared and structurally characterized. In 4-(4-fluorophenyl)piperazin-1-ium 2-hydroxy-3,5-dinitrobenzoate, C(10)H(14)FN(2) (+)·C(7)H(3)N(2)O(7) (−), (I), the anion contains an intramolecular O—H⋯O hydrogen bond,...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7273999/ https://www.ncbi.nlm.nih.gov/pubmed/32523751 http://dx.doi.org/10.1107/S2056989020006398 |
Sumario: | Three salts containing the 4-(4-fluorophenyl)piperazin-1-ium cation have been prepared and structurally characterized. In 4-(4-fluorophenyl)piperazin-1-ium 2-hydroxy-3,5-dinitrobenzoate, C(10)H(14)FN(2) (+)·C(7)H(3)N(2)O(7) (−), (I), the anion contains an intramolecular O—H⋯O hydrogen bond, and it has a structure similar to that of the picrate ion. The cations and anions are linked into [001] chains of rings by a combination of two three-centre N—H⋯(O)(2) hydrogen bonds. The anion in 4-(4-fluorophenyl)piperazin-1-ium hydrogen oxalate, C(10)H(14)FN(2) (+)·C(2)HO(4) (−), (II), is planar, and the cations and anions are linked into (100) sheets by multiple hydrogen bonds including two-centre N—H⋯O, three-centre N—H⋯(O)(2), O—H⋯O, C—H⋯O and C—H⋯π(arene) types. In 4-(4-fluorophenyl)piperazin-1-ium hydrogen (2R,3R)-tartrate monohydrate, C(10)H(14)FN(2) (+)·C(4)H(5)O(6) (−)·H(2)O, (III), the anion exhibits an approximate non-crystallographic twofold rotation symmetry with antiperiplanar carboxyl groups. A combination of eight hydrogen bonds, encompassing two- and three-centre N—H⋯O systems, O—H⋯O and C—H⋯π(arene) types, link the independent components into a three-dimensional framework. Comparisons are made with some related structures. |
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