Three 4-(4-fluorophenyl)piperazin-1-ium salts containing organic anions: supramolecular assembly in one, two and three dimensions

Acta Crystallographica Section E: Crystallographic Communications

Chayanna Harish Chinthal¹  Sreeramapura D. Archana¹  Hemmige S. Yathirajan¹  Sabine Foro²  Christopher Glidewell³ 

[1] Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysuru-570 006, India;Institute of Materials Science, Darmstadt University of Technology, Alarich-Weiss-Strasse 2, D-64287 Darmstadt, Germany;School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST, UK;

关键词: piperazines;    piperazinium salts;    crystal structure;    molecular conformation;    hydrogen bonding;    supramolecular assembly;   

DOI  :  10.1107/S2056989020006398

来源: DOAJ

【 摘 要 】

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, C10H14FN2+·C7H3N2O7−, (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, C10H14FN2+·C2HO4−, (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, C10H14FN2+·C4H5O6−·H2O, (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.

【 授权许可】

Unknown