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The chemistry of copper complexes is of interest owing to their importance in biological and industrial processes. The reaction of copper(I) chloride with the bidentate Schiff base<jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>\u2032-bis(<jats:italic>trans<\/jats:italic>-2-nitrocinnamaldehyde)ethylenediamine {Nca<jats:sub>2<\/jats:sub>en, systematic name: (1<jats:italic>E<\/jats:italic>,1\u2032<jats:italic>E<\/jats:italic>,2<jats:italic>E<\/jats:italic>,2\u2032<jats:italic>E<\/jats:italic>)-<jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>\u2032-(ethane-1,2-diyl)bis[3-(2-nitrophenyl)prop-2-en-1-imine]} in a 1:1 molar ratio in dichloromethane without exclusion of air or moisture resulted in the formation of the title complex \u03bc-chlorido-\u03bc-hydroxido-bis(chlorido{(1<jats:italic>E<\/jats:italic>,1\u2032<jats:italic>E<\/jats:italic>,2<jats:italic>E<\/jats:italic>,2\u2032<jats:italic>E<\/jats:italic>)-<jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>\u2032-(ethane-1,2-diyl)bis[3-(2-nitrophenyl)prop-2-en-1-imine]-\u03ba<jats:sup>2<\/jats:sup><jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>\u2032}copper(II)) dichloromethane sesquisolvate, [Cu<jats:sub>2<\/jats:sub>Cl<jats:sub>3<\/jats:sub>(OH)(C<jats:sub>20<\/jats:sub>H<jats:sub>18<\/jats:sub>N<jats:sub>4<\/jats:sub>O<jats:sub>4<\/jats:sub>)<jats:sub>2<\/jats:sub>]\u00b71.5CH<jats:sub>2<\/jats:sub>Cl<jats:sub>2<\/jats:sub>. The dinuclear complex has a folded four-membered ring in an unsymmetrical Cu<jats:sub>2<\/jats:sub>OCl<jats:sub>3<\/jats:sub>core in which the approximate trigonal bipyramidal coordination displays different angular distortions in the equatorial planes of the two Cu<jats:sup>II<\/jats:sup>atoms; the chloride bridge is asymmetric, but the hydroxide bridge is symmetric. The chelate rings of the two Nca<jats:sub>2<\/jats:sub>en ligands have different conformations, leading to a more marked bowing of one of the ligands compared with the other. This is the first reported dinuclear complex, and the first five-coordinate complex, of the Nca<jats:sub>2<\/jats:sub>en Schiff base ligand. Molecules of the dimer are associated in pairs by ring-stacking interactions supported by C\u2014H...Cl interactions with solvent molecules; a further ring-stacking interaction exists between the two Schiff base ligands of each molecule.<\/jats:p>","DOI":"10.1107\/s2053229616003144","type":"journal-article","created":{"date-parts":[[2016,2,29]],"date-time":"2016-02-29T16:35:30Z","timestamp":1456763730000},"page":"239-242","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":1,"title":["Synthesis and crystal structure of the dinuclear copper(II) Schiff base complex \u03bc-hydroxido-\u03bc-chlorido-bis{[bis(<i>trans<\/i>-2-nitrocinnamaldehyde)ethylenediamine]chloridocopper(II)} dichloromethane sesquisolvate"],"prefix":"10.1107","volume":"72","author":[{"given":"Kazem","family":"Barati","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William","family":"Clegg","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammad Hossein","family":"Habibi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ross W.","family":"Harrington","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arash","family":"Lalegani","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Morteza","family":"Montazerozohori","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2016,2,26]]},"reference":[{"key":"fa3382_bb1","doi-asserted-by":"crossref","first-page":"1349","DOI":"10.1039\/DT9840001349","author":"Addison","year":"1984","journal-title":"J. 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