Crystal structures of six 4-(4-nitrophenyl)piperazin-1-ium salts

Acta Crystallographica Section E: Crystallographic Communications

Santiago Garcia-Granda¹  Mohammed S. M. Abdelbaky¹  Hemmige S. Yathirajan²  Haruvegowda Kiran Kumar²  Ninganayaka Mahesha²  Sabine Foro³ 

[1] Department of Physical and Analytical Chemistry, Faculty of Chemistry, Oviedo University-CINN, Oviedo 33006, Spain;Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore-570 006, India;Institute of Materials Science, Darmstadt University of Technology, Alarich-Weiss-Strasse 2, D-64287 Darmstadt, Germany;

关键词: crystal structure;    piperazine;    benzoate anion;    biological activity;   

DOI  :  10.1107/S2056989022004157

来源: DOAJ

【 摘 要 】

Six piperazinium salts, namely 4-(4-nitrophenyl)piperazin-1-ium 4-bromobenzoate dihydrate, C10H14N3O2+·C7H4BrO2−·2H2O, (I), 4-(4-nitrophenyl)piperazin-1-ium 4-iodobenzoate dihydrate, C10H14N3O2+·C7H4IO2−·2H2O, (II), 4-(4-nitrophenyl)piperazin-1-ium 4-hydroxybenzoate monohydrate, C10H14N3O2+·C7H5O3−·H2O, (III), 4-(4-nitrophenyl)piperazin-1-ium 4-methylbenzoate monohydrate, C10H14N3O2+·C8H7O2−·H2O, (IV), 4-(4-nitrophenyl)piperazin-1-ium 4-methoxybenzoate hemihydrate, 2C10H14N3O2+·2C8H7O3−·H2O, (V), and 4-(4-nitrophenyl)piperazin-1-ium 4-ethoxybenzoate, 2C10H14N3O2+·2C9H9O3−, (VI), have been synthesized and their crystal structures solved by single-crystal X-ray diffraction, revealing that all of them crystallize in the triclinic space group P-1 except for (V), which crystallizes in the monoclinic space group P21/c and has a disordered nitro group. Compounds (I) and (II) are isostructural. The crystal packing of (I)–(V) is constructed from organic chains formed by a combination of hydrogen bonds of type N—H...O and/or O—H...O and other weak interactions of type C—H...O and/or C—H...π, forming sheets, whereas (VI) shows a cationic and anionic-based layer structure.

【 授权许可】

Unknown