{"title":"Synthesis and structure of norfloxacinium acetate sesquihydrate","authors":"Abdusamat Rasulov, Batirbay Torambetov, Aziza Erejepova, Umidjon Annaev, Jabbor Suyunov, Bekmurod Alimnazarov, Jamshid Ashurov","doi":"10.1107/S2056989026005670","DOIUrl":null,"url":null,"abstract":"<div><div>The title hydrated salt, C<sub>16</sub>H<sub>19</sub>FN<sub>3</sub>O<sub>3</sub><sup>+</sup>·C<sub>2</sub>H<sub>3</sub>O<sub>2</sub><sup>−</sup>·1.5H<sub>2</sub>O, crystallizes with two cations, two anions and three water molecules of crystallization in the asymmetric unit. The protonation of the piperazine secondary amine group of norfloxacin occurs <em>via</em> proton transfer from acetic acid. In the extended structure, the components are linked into chains propagating along the <em>a</em>-axis direction through numerous N—H⋯O and O—H⋯O hydrogen bonds. Hirshfeld surface analysis and two-dimensional fingerprint plots confirm the significant contribution of H⋯O interactions to the consolidation of the crystal structure.</div></div>","PeriodicalId":7367,"journal":{"name":"Acta Crystallographica Section E: Crystallographic Communications","volume":"82 7","pages":"Pages 777-780"},"PeriodicalIF":0.5000,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Crystallographica Section E: Crystallographic Communications","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S205698902600157X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/7/13 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
The title hydrated salt, C16H19FN3O3+·C2H3O2−·1.5H2O, crystallizes with two cations, two anions and three water molecules of crystallization in the asymmetric unit. The protonation of the piperazine secondary amine group of norfloxacin occurs via proton transfer from acetic acid. In the extended structure, the components are linked into chains propagating along the a-axis direction through numerous N—H⋯O and O—H⋯O hydrogen bonds. Hirshfeld surface analysis and two-dimensional fingerprint plots confirm the significant contribution of H⋯O interactions to the consolidation of the crystal structure.
期刊介绍:
Acta Crystallographica Section E: Crystallographic Communications is the IUCr''s open-access structural communications journal. It provides a fast, simple and easily accessible publication mechanism for crystal structure determinations of inorganic, metal-organic and organic compounds. The electronic submission, validation, refereeing and publication facilities of the journal ensure rapid and high-quality publication of fully validated structures. The primary article category is Research Communications; these are peer-reviewed articles describing one or more structure determinations with appropriate discussion of the science.