{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T04:03:32Z","timestamp":1791518612705,"version":"4.3.4"},"reference-count":24,"publisher":"International Union of Crystallography (IUCr)","issue":"10","license":[{"start":{"date-parts":[[2025,9,9]],"date-time":"2025-09-09T00:00:00Z","timestamp":1757376000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2025,9,9]],"date-time":"2025-09-09T00:00:00Z","timestamp":1757376000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr E Cryst Commun","Acta Cryst E","Acta Cryst Sect E","Acta Crystallogr E","Acta Crystallogr Sect E","Acta Cryst E Cryst Commun","Acta Cryst Sect E Cryst Commun"],"accepted":{"date-parts":[[2025,9,3]]},"published-print":{"date-parts":[[2025,10,1]]},"abstract":"<jats:p>\n                    The title coordination complex, bis[4-(3-carboxylato-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium-\u03ba\n                    <jats:sup>2<\/jats:sup>\n                    <jats:italic>O<\/jats:italic>\n                    <jats:sup>3<\/jats:sup>\n                    ,\n                    <jats:italic>O<\/jats:italic>\n                    <jats:sup>4<\/jats:sup>\n                    ]copper(II) dinitrate, [Cu(C\n                    <jats:sub>16<\/jats:sub>\n                    H\n                    <jats:sub>18<\/jats:sub>\n                    FN\n                    <jats:sub>3<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:sub>2<\/jats:sub>\n                    ](NO\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:sub>2<\/jats:sub>\n                    , was synthesized from norfloxacin (NF) and Cu(NO\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:sub>2<\/jats:sub>\n                    \u00b73H\n                    <jats:sub>2<\/jats:sub>\n                    O. The asymmetric unit contains half a molecule of [Cu(NF)\n                    <jats:sub>2<\/jats:sub>\n                    ] and one nitrate anion, with the copper atom located at a special crystallographic position with\n                    <jats:overline>1<\/jats:overline>\n                    site symmetry. The NF ligands are zwitterionic and coordinate to the metal atom\n                    <jats:italic>via<\/jats:italic>\n                    two oxygen atoms and the nitrate ions remain uncoordinated as counter-ions. The supramolecular features include \u03c0\u2013\u03c0 stacking interactions as well as N\u2014H...O and C\u2014H...F hydrogen bonds and short [2.718\u2005(3)\u2005\u00c5] F...F interactions, which facilitate the formation of a columnar assembly parallel to the\n                    <jats:italic>b<\/jats:italic>\n                    -axis. Hirshfeld surface and two-dimensional fingerprint plot analysis were used to quantify the supramolecular interactions of the compound.\n                  <\/jats:p>","DOI":"10.1107\/s205698902500787x","type":"journal-article","created":{"date-parts":[[2025,9,5]],"date-time":"2025-09-05T13:49:58Z","timestamp":1757080198000},"page":"944-947","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":3,"title":["Synthesis and structure of a square-planar copper\u2013norflaxacin coordination complex"],"prefix":"10.1107","volume":"81","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-3905-5556","authenticated-orcid":true,"given":"Abdusamat","family":"Rasulov","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9218-5596","authenticated-orcid":true,"given":"Batirbay","family":"Torambetov","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/011647w73","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jabbor","family":"Suyunov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1711-3303","authenticated-orcid":true,"given":"Sadridin","family":"Eshkaraev","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laziza","family":"Kholmurodova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bekzod","family":"Babamuratov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4441-2803","authenticated-orcid":true,"given":"Jamshid","family":"Ashurov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2025,9,9]]},"reference":[{"key":"hb8149_bb1","doi-asserted-by":"crossref","first-page":"687","DOI":"10.1007\/s10973-006-7956-9","volume":"89","author":"Barbas","year":"2007","journal-title":"J. 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