{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T01:05:33Z","timestamp":1762045533912,"version":"3.37.3"},"reference-count":48,"publisher":"International Union of Crystallography (IUCr)","issue":"7","license":[{"start":{"date-parts":[[2019,6,28]],"date-time":"2019-06-28T00:00:00Z","timestamp":1561680000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2019,6,28]],"date-time":"2019-06-28T00:00:00Z","timestamp":1561680000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/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":[[2019,6,21]]},"published-print":{"date-parts":[[2019,7,1]]},"abstract":"<jats:p>Two Cu<jats:sup>II<\/jats:sup> complexes [Cu(C<jats:sub>14<\/jats:sub>H<jats:sub>13<\/jats:sub>N<jats:sub>4<\/jats:sub>O<jats:sub>2<\/jats:sub>)Cl]<jats:sub>\n                     <jats:italic>n<\/jats:italic>\n                  <\/jats:sub>, <jats:bold>I<\/jats:bold>, and [Cu<jats:sub>4<\/jats:sub>(C<jats:sub>8<\/jats:sub>H<jats:sub>10<\/jats:sub>NO<jats:sub>2<\/jats:sub>)<jats:sub>4<\/jats:sub>Cl<jats:sub>4<\/jats:sub>]<jats:sub>\n                     <jats:italic>n<\/jats:italic>\n                  <\/jats:sub>, <jats:bold>II<\/jats:bold>, have been synthesized. In the structure of the mononuclear complex <jats:bold>I<\/jats:bold>, each ligand is coordinated to two metal centers. The basal plane around the Cu<jats:sup>II<\/jats:sup> cation is formed by one chloride anion, one oxygen atom, one imino and one pyridine nitrogen atom. The apical position of the distorted square-pyramidal geometry is occupied by a pyridine nitrogen atom from a neighbouring unit, leading to infinite one-dimensional polymeric chains along the <jats:italic>b-<\/jats:italic>axis direction. Each chain is connected to adjacent chains by intermolecular C\u2014H...O and C\u2014H...Cl interactions, leading to a three-dimensional network structure. The tetranuclear complex <jats:bold>II<\/jats:bold> lies about a crystallographic inversion centre and has one core in which two Cu<jats:sup>II<\/jats:sup> metal centers are mutually interconnected <jats:italic>via<\/jats:italic> two enolato oxygen atoms while the other two Cu<jats:sup>II<\/jats:sup> cations are linked by a chloride anion and an enolato oxygen. An open-cube structure is generated in which the two open-cube units, with seven vertices each, share a side composed of two Cu<jats:sup>II<\/jats:sup> ions bridged by two enolato oxygen atoms acting in a \u03bc<jats:sub>3<\/jats:sub>-mode. The Cu<jats:sup>II<\/jats:sup> atoms in each of the two CuO<jats:sub>3<\/jats:sub>NCl units are connected by one \u03bc<jats:sub>2<\/jats:sub>-O and two \u03bc<jats:sub>3<\/jats:sub>-O atoms from deprotonated hydroxyl groups and one chloride anion to the three other Cu<jats:sup>II<\/jats:sup> centres. Each of the pentacoordinated Cu<jats:sup>II<\/jats:sup> cations has a distorted NO<jats:sub>3<\/jats:sub>Cl square-pyramidal environment. The Cu<jats:sup>II<\/jats:sup> atoms in each of the two CuO<jats:sub>2<\/jats:sub>NCl<jats:sub>2<\/jats:sub> units are connected by \u03bc<jats:sub>2<\/jats:sub>-O and \u03bc<jats:sub>3<\/jats:sub>-O atoms from deprotonated alcohol hydroxy groups and one chloride anion to two other Cu<jats:sup>II<\/jats:sup> ions. Each of the pentacoordinated Cu<jats:sup>II<\/jats:sup> cations has a distorted NO<jats:sub>2<\/jats:sub>Cl<jats:sub>2<\/jats:sub> square-pyramidal environment. In the crystal, a series of intramolecular C\u2014H...O and C\u2014H...Cl hydrogen bonds are observed in each tetranuclear monomeric unit, which is connected to four tetranuclear monomeric units by intermolecular C\u2014H...O hydrogen bonds, thus forming a planar two-dimensional structure in the (\\overline{1}01) plane.<\/jats:p>","DOI":"10.1107\/s2056989019008922","type":"journal-article","created":{"date-parts":[[2019,6,28]],"date-time":"2019-06-28T08:58:03Z","timestamp":1561712283000},"page":"1069-1075","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":4,"title":["Crystal structures of two Cu<sup>II<\/sup> compounds: <i>catena<\/i>-poly[[chloridocopper(II)]-\u03bc-<i>N<\/i>-[ethoxy(pyridin-2-yl)methylidene]-<i>N<\/i>\u2032-[oxido(pyridin-3-yl)methylidene]hydrazine-\u03ba<sup>4<\/sup>\n                  <i>N<\/i>,<i>N<\/i>\u2032,<i>O<\/i>:<i>N<\/i>\u2032\u2032] and di-\u03bc-chlorido-1:4\u03ba<sup>2<\/sup>\n                  <i>Cl<\/i>:<i>Cl<\/i>-2:3\u03ba<sup>2<\/sup>\n                  <i>Cl<\/i>:<i>Cl<\/i>-dichlorido-2\u03ba<i>Cl<\/i>,4\u03ba<i>Cl<\/i>-bis[\u03bc<sub>3<\/sub>-ethoxy(pyridin-2-yl)methanolato-1:2:3\u03ba<sup>3<\/sup>\n                  <i>O<\/i>:<i>N<\/i>,<i>O<\/i>:<i>O<\/i>;1:3:4\u03ba<sup>3<\/sup>\n                  <i>O<\/i>:<i>O<\/i>:<i>N<\/i>,<i>O<\/i>]bis[\u03bc<sub>2<\/sub>-ethoxy(pyridin-2-yl)methanolato-1:2\u03ba<sup>3<\/sup>\n                  <i>N<\/i>,<i>O<\/i>:<i>O<\/i>;3:4\u03ba<sup>3<\/sup>\n                  <i>N<\/i>,<i>O<\/i>:<i>O<\/i>]tetracopper(II)"],"prefix":"10.1107","volume":"75","author":[{"given":"Ousmane","family":"Sall","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Farba Bouyagui","family":"Tamboura","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adama","family":"Sy","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aliou Hamady","family":"Barry","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elhadj Ibrahima","family":"Thiam","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4337-5932","authenticated-orcid":true,"given":"Mohamed","family":"Gaye","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Javier","family":"Ellena","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2019,6,28]]},"reference":[{"key":"sj5575_bb1","doi-asserted-by":"crossref","first-page":"2553","DOI":"10.1039\/b105735a","author":"Acevedo-Ch\u00e1vez","year":"2002","journal-title":"J. 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