{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T09:52:36Z","timestamp":1782208356384,"version":"3.54.5"},"reference-count":37,"publisher":"International Union of Crystallography (IUCr)","issue":"2","license":[{"start":{"date-parts":[[2020,1,17]],"date-time":"2020-01-17T00:00:00Z","timestamp":1579219200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2020,1,17]],"date-time":"2020-01-17T00:00:00Z","timestamp":1579219200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"name":"Croatian Academy of Sciences and Arts"},{"name":"University of Split"}],"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":[[2020,1,13]]},"published-print":{"date-parts":[[2020,2,1]]},"abstract":"<jats:p>A copper(II) dimer with the deprotonated anion of 2-bromonicotinic acid (2-BrnicH), namely, tetrakis(\u03bc-2-bromonicotinato-\u03ba<jats:sup>2<\/jats:sup>\n                  <jats:italic>O<\/jats:italic>:<jats:italic>O<\/jats:italic>\u2032)bis[aquacopper(II)](<jats:italic>Cu<\/jats:italic>\u2014<jats:italic>Cu<\/jats:italic>), [Cu<jats:sub>2<\/jats:sub>(H<jats:sub>2<\/jats:sub>O)<jats:sub>2<\/jats:sub>(C<jats:sub>6<\/jats:sub>H<jats:sub>3<\/jats:sub>BrNO<jats:sub>2<\/jats:sub>)<jats:sub>4<\/jats:sub>] or [Cu<jats:sub>2<\/jats:sub>(H<jats:sub>2<\/jats:sub>O)<jats:sub>2<\/jats:sub>(2-Brnic)<jats:sub>4<\/jats:sub>], (<jats:bold>1<\/jats:bold>), was prepared by the reaction of copper(II) chloride dihydrate and 2-bromonicotinic acid in water. The copper(II) ion in <jats:bold>1<\/jats:bold> has a distorted square-pyramidal coordination environment, achieved by four carboxylate O atoms in the basal plane and the water molecule in the apical position. The pair of symmetry-related copper(II) ions are connected into a centrosymmetric paddle-wheel dinuclear cluster [Cu...Cu = 2.6470\u2005(11)\u2005\u00c5] <jats:italic>via<\/jats:italic> four <jats:italic>O<\/jats:italic>,<jats:italic>O<\/jats:italic>\u2032-bridging 2-bromonicotinate ligands in the <jats:italic>syn<\/jats:italic>-<jats:italic>syn<\/jats:italic> coordination mode. In the extended structure of <jats:bold>1<\/jats:bold>, the cluster molecules are assembled into an infinite two-dimensional hydrogen-bonded network lying parallel to the (001) plane <jats:italic>via<\/jats:italic> strong O\u2014H...O and O\u2014H...N hydrogen bonds, leading to the formation of various hydrogen-bond ring motifs: dimeric <jats:italic>R<\/jats:italic>\n                  <jats:sup>2<\/jats:sup>\n                  <jats:sub>2<\/jats:sub>(8) and <jats:italic>R<\/jats:italic>\n                  <jats:sup>2<\/jats:sup>\n                  <jats:sub>2<\/jats:sub>(16) loops and a tetrameric <jats:italic>R<\/jats:italic>\n                  <jats:sup>4<\/jats:sup>\n                  <jats:sub>4<\/jats:sub>(16) loop. The Hirshfeld surface analysis was also performed in order to better illustrate the nature and abundance of the intermolecular contacts in the structure of <jats:bold>1<\/jats:bold>.<\/jats:p>","DOI":"10.1107\/s2056989020000390","type":"journal-article","created":{"date-parts":[[2020,1,17]],"date-time":"2020-01-17T09:25:03Z","timestamp":1579253103000},"page":"225-230","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":2,"title":["The first coordination compound of deprotonated 2-bromonicotinic acid: crystal structure of a dinuclear paddle-wheel copper(II) complex"],"prefix":"10.1107","volume":"76","author":[{"given":"Nives","family":"Politeo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mateja","family":"Pisa\u010di\u0107","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marijana","family":"\u0110akovi\u0107","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vesna","family":"Sokol","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Boris-Marko","family":"Kukovec","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2020,1,17]]},"reference":[{"key":"hb7877_bb1","doi-asserted-by":"crossref","first-page":"1349","DOI":"10.1039\/DT9840001349","author":"Addison","year":"1984","journal-title":"J. Chem. Soc. Dalton Trans."},{"key":"hb7877_bb2","doi-asserted-by":"crossref","first-page":"10378","DOI":"10.1039\/C6NJ02381A","volume":"40","author":"Adhikari","year":"2016","journal-title":"New J. Chem."},{"key":"hb7877_bb3","doi-asserted-by":"crossref","first-page":"11108","DOI":"10.1021\/ic8014145","volume":"47","author":"Baca","year":"2008","journal-title":"Inorg. Chem."},{"key":"hb7877_bb4","doi-asserted-by":"crossref","first-page":"5344","DOI":"10.1002\/anie.200800403","volume":"47","author":"Bai","year":"2008","journal-title":"Angew. Chem. Int. Ed."},{"key":"hb7877_bb5","doi-asserted-by":"crossref","first-page":"2859","DOI":"10.1016\/j.poly.2006.04.022","volume":"25","author":"Bharathi","year":"2006","journal-title":"Polyhedron"},{"key":"hb7877_bb29","doi-asserted-by":"crossref","first-page":"3993","DOI":"10.1016\/j.poly.2007.04.033","volume":"26","author":"Bharathi","year":"2007","journal-title":"Polyhedron"},{"key":"hb7877_bb6","doi-asserted-by":"crossref","first-page":"1057","DOI":"10.1016\/S0277-5387(02)00935-X","volume":"21","author":"Cejudo","year":"2002","journal-title":"Polyhedron"},{"key":"hb7877_bb7","doi-asserted-by":"crossref","first-page":"1148","DOI":"10.1126\/science.283.5405.1148","volume":"283","author":"Chui","year":"1999","journal-title":"Science"},{"key":"hb7877_bb8","doi-asserted-by":"crossref","first-page":"441","DOI":"10.1002\/(SICI)1099-0682(199903)1999:3<441::AID-EJIC441>3.0.CO;2-T","author":"Colacio","year":"1999","journal-title":"Eur. J. Inorg. Chem."},{"key":"hb7877_bb9","doi-asserted-by":"crossref","first-page":"2832","DOI":"10.1039\/b801115j","author":"Cordero","year":"2008","journal-title":"Dalton Trans."},{"key":"hb7877_bb10","doi-asserted-by":"crossref","first-page":"1645","DOI":"10.1016\/j.jinorgbio.2011.09.004","volume":"105","author":"Fountoulaki","year":"2011","journal-title":"J. Inorg. Biochem."},{"key":"hb7877_bb11","doi-asserted-by":"crossref","first-page":"11650","DOI":"10.1021\/ja803783c","volume":"130","author":"Furukawa","year":"2008","journal-title":"J. Am. Chem. Soc."},{"key":"hb7877_bb39","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1107\/S2052520616003954","volume":"72","author":"Groom","year":"2016","journal-title":"Acta Cryst. B"},{"key":"hb7877_bb12","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1016\/j.poly.2013.04.020","volume":"57","author":"Iqbal","year":"2013","journal-title":"Polyhedron"},{"key":"hb7877_bb13","doi-asserted-by":"crossref","first-page":"287","DOI":"10.3184\/174751913X13648315177501","volume":"37","author":"Jun","year":"2013","journal-title":"J. Chem. Res."},{"key":"hb7877_bb14","doi-asserted-by":"crossref","first-page":"174","DOI":"10.1016\/j.molstruc.2012.09.075","volume":"1036","author":"Jun","year":"2013","journal-title":"J. Mol. Struct."},{"key":"hb7877_bb15","doi-asserted-by":"crossref","first-page":"1320","DOI":"10.1016\/j.poly.2009.02.006","volume":"28","author":"Lim","year":"2009","journal-title":"Polyhedron"},{"key":"hb7877_bb16","doi-asserted-by":"crossref","first-page":"13957","DOI":"10.1039\/C4DT01722F","volume":"43","author":"Ma","year":"2014","journal-title":"Dalton Trans."},{"key":"hb7877_bb17","doi-asserted-by":"crossref","first-page":"466","DOI":"10.1107\/S0021889807067908","volume":"41","author":"Macrae","year":"2008","journal-title":"J. Appl. Cryst."},{"key":"hb7877_bb18","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1016\/j.molstruc.2015.11.078","volume":"1108","author":"Mei","year":"2016","journal-title":"J. Mol. Struct."},{"key":"hb7877_bb19","doi-asserted-by":"crossref","first-page":"298","DOI":"10.1002\/zaac.200600183","volume":"633","author":"Moncol","year":"2007","journal-title":"Z. Anorg. Allg. Chem."},{"key":"hb7877_bb20","doi-asserted-by":"crossref","first-page":"11916","DOI":"10.1021\/acs.inorgchem.5b02199","volume":"54","author":"Ozarowski","year":"2015","journal-title":"Inorg. Chem."},{"key":"hb7877_bb21","doi-asserted-by":"crossref","unstructured":"Phetmung, H. & Nucharoen, A. (2019). Polyhedron, 173, 114121. https:\/\/doi.org\/10.1016\/j.poly.2019.114121","DOI":"10.1016\/j.poly.2019.114121"},{"key":"hb7877_bb22","doi-asserted-by":"crossref","first-page":"449","DOI":"10.1039\/b702176c","volume":"9","author":"Pichon","year":"2007","journal-title":"CrystEngComm"},{"key":"hb7877_bb23","first-page":"2678","volume":"12","author":"Poppl","year":"2008","journal-title":"J. Phys. Chem."},{"key":"hb7877_bb24","unstructured":"Rigaku (2018). CrysAlis PRO. Rigaku Inc., Tokyo, Japan."},{"key":"hb7877_bb26","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1016\/j.poly.2013.01.016","volume":"53","author":"Rigamonti","year":"2013","journal-title":"Polyhedron"},{"key":"hb7877_bb27","doi-asserted-by":"crossref","first-page":"4325","DOI":"10.1002\/ejic.200800603","author":"Roubeau","year":"2008","journal-title":"Eur. J. Inorg. Chem."},{"key":"hb7877_bb28","doi-asserted-by":"crossref","first-page":"2081","DOI":"10.1016\/j.ica.2007.10.029","volume":"361","author":"Sarma","year":"2008","journal-title":"Inorg. Chim. Acta"},{"key":"hb7877_bb30","doi-asserted-by":"crossref","first-page":"9717","DOI":"10.1021\/ic401754q","volume":"52","author":"Sheikh","year":"2013","journal-title":"Inorg. Chem."},{"key":"hb7877_bb31","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1107\/S2053273314026370","volume":"71","author":"Sheldrick","year":"2015","journal-title":"Acta Cryst. A"},{"key":"hb7877_bb33","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1107\/S2053229614024218","volume":"71","author":"Sheldrick","year":"2015","journal-title":"Acta Cryst. C"},{"key":"hb7877_bb34","doi-asserted-by":"crossref","first-page":"1241","DOI":"10.1016\/j.poly.2009.02.014","volume":"28","author":"Song","year":"2009","journal-title":"Polyhedron"},{"key":"hb7877_bb35","unstructured":"Wolff, S. K., Grimwood, D. J., McKinnon, J. J., Turner, M. J., Jayatilaka, D. & Spackman, M. A. (2012). CrystalExplorer. University of Western Australia, Nedlands, Australia"},{"key":"hb7877_bb36","doi-asserted-by":"crossref","first-page":"12192","DOI":"10.1039\/c2dt31378b","volume":"41","author":"Zhang","year":"2012","journal-title":"Dalton Trans."},{"key":"hb7877_bb37","doi-asserted-by":"crossref","first-page":"1249","DOI":"10.1002\/ejic.200901121","author":"Zhang","year":"2010","journal-title":"Eur. J. Inorg. Chem."},{"key":"hb7877_bb38","doi-asserted-by":"crossref","first-page":"1266","DOI":"10.1021\/ic902404b","volume":"49","author":"Zhu","year":"2010","journal-title":"Inorg. Chem."}],"container-title":["Acta Crystallographica Section E Crystallographic Communications"],"original-title":[],"link":[{"URL":"http:\/\/journals.iucr.org\/e\/issues\/2020\/02\/00\/hb7877\/hb7877.pdf","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.iucr.org\/e\/issues\/2020\/02\/00\/hb7877\/hb7877.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,13]],"date-time":"2025-01-13T11:02:34Z","timestamp":1736766154000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.iucr.org\/paper?S2056989020000390"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,1,17]]},"references-count":37,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2020,2]]}},"alternative-id":["S2056989020000390"],"URL":"https:\/\/doi.org\/10.1107\/s2056989020000390","relation":{"is-supplemented-by":[{"id-type":"doi","id":"10.1107\/S2056989020000390\/hb7877sup1.cif","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2056989020000390\/hb7877Isup2.hkl","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2056989020000390\/hb7877sup3.docx","asserted-by":"subject"}]},"ISSN":["2056-9890"],"issn-type":[{"value":"2056-9890","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,1,17]]},"assertion":[{"value":"Acta Crystallographica Section E: Crystallographic Communications","order":0,"name":"journal","label":"Publication","explanation":{"URL":"http:\/\/journals.iucr.org\/e"},"group":{"name":"general","label":"General"}},{"value":"research communications","order":1,"name":"content_type","label":"Content type","explanation":{"URL":"https:\/\/journals.iucr.org\/e\/services\/notesforauthors.html"},"group":{"name":"general","label":"General"}},{"value":"Available","URL":"http:\/\/scripts.iucr.org\/cgi-bin\/citedin?hb7877","order":2,"name":"article_metrics","label":"Article metrics","group":{"name":"general","label":"General"}},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"19 December 2019","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication history"}},{"value":"13 January 2020","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication history"}},{"value":"17 January 2020","order":2,"name":"published_online","label":"Published online","group":{"name":"publication_history","label":"Publication history"}},{"value":"This article has supporting information","name":"supplementary_materials","label":"Supplementary materials","explanation":{"URL":"http:\/\/scripts.iucr.org\/cgi-bin\/sendsup?hb7877"}},{"value":"\u00a9 2020 Politeo et al.","order":0,"name":"copyright","label":"Copyright","explanation":{"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},"group":{"name":"copyright_and_licencing","label":"Copyright and licencing"}},{"value":"Creative Commons Attribution (CC-BY)","order":1,"name":"license","label":"Licence","explanation":{"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},"group":{"name":"copyright_and_licencing","label":"Copyright and licencing"}}]}}