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Monohydrous dihydrogen phosphate salts of norfloxacin and ciprofloxacin
Luleå University of Technology, Department of Health Sciences, Medical Science.
Energy Technology and Thermal Process Chemistry, Umeå University.
Luleå University of Technology, Department of Health Sciences, Medical Science.ORCID iD: 0000-0002-0654-5410
2007 (English)In: Acta Crystallographica Section C: Crystal Structure Communications, ISSN 0108-2701, E-ISSN 1600-5759, Vol. 63, no 12, p. 731-733Article in journal (Refereed) Published
Abstract [en]

Norfloxacin and ciprofloxacin crystallize with phosphoric acid in aqueous solution to give the salts 4-(3-carboxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydro-7-quinolyl)piperazinium dihydrogenphosphate monohydrate, C16H19FN3O3(+) x H2PO4(-) x H2O, and 4-(3-carboxy-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-7-quinolyl)piperazinium dihydrogenphosphate monohydrate, C17H19FN3O3(+) x H2PO4(-) x H2O, respectively. In the crystal structures, the phosphate anions and the piperazine rings of norfloxacin or ciprofloxacin form a 12-membered supramolecular synthon, viz. R4(4)(12). The synthons R4(4)(12) and R2(2)(8) formed between adjacent phosphate anions result in the three-dimensional structures.

Place, publisher, year, edition, pages
2007. Vol. 63, no 12, p. 731-733
Identifiers
URN: urn:nbn:se:ltu:diva-5973DOI: 10.1107/S0108270107053218Local ID: 42af69c0-a8a3-11dc-9057-000ea68e967bOAI: oai:DiVA.org:ltu-5973DiVA: diva2:978849
Note

Validerad; 2007; 20071212 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-12-15Bibliographically approved

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