{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T21:49:08Z","timestamp":1740174548182,"version":"3.37.3"},"reference-count":21,"publisher":"International Union of Crystallography (IUCr)","issue":"6","license":[{"start":{"date-parts":[[2020,5,5]],"date-time":"2020-05-05T00:00:00Z","timestamp":1588636800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2020,5,5]],"date-time":"2020-05-05T00:00:00Z","timestamp":1588636800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"DOI":"10.13039\/501100007684","name":"Ministry of Education and Science of Ukraine","doi-asserted-by":"crossref","award":["19BF037-05"],"award-info":[{"award-number":["19BF037-05"]}],"id":[{"id":"10.13039\/501100007684","id-type":"DOI","asserted-by":"crossref"}]}],"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":[[2020,4,29]]},"published-print":{"date-parts":[[2020,6,1]]},"abstract":"<jats:p>The new copper(II) complex, namely, di-\u03bc-chlorido-bis{chlorido[methyl(pyridin-2-ylmethylidene)amine-\u03ba<jats:sup>2<\/jats:sup>\n                  <jats:italic>N<\/jats:italic>,<jats:italic>N<\/jats:italic>\u2032]copper(II)}, [Cu<jats:sub>2<\/jats:sub>Cl<jats:sub>4<\/jats:sub>(C<jats:sub>7<\/jats:sub>H<jats:sub>8<\/jats:sub>N<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>], (I), with the ligand 2-pyridylmethyl-<jats:italic>N<\/jats:italic>-methylimine (<jats:italic>L<\/jats:italic>, a product of Schiff base condensation between methylamine and 2-pyridinecarbaldehyde) is built of discrete centrosymmetric dimers. The coordination about the Cu<jats:sup>II<\/jats:sup> ion can be described as distorted square pyramidal. The base of the pyramid consists of two nitrogen atoms from the bidentate chelate <jats:italic>L<\/jats:italic> [Cu\u2014N = 2.0241\u2005(9), 2.0374\u2005(8)\u2005\u00c5] and two chlorine atoms [Cu\u2014Cl = 2.2500\u2005(3), 2.2835\u2005(3)\u2005\u00c5]. The apical position is occupied by another Cl atom with the apical bond being significantly elongated at 2.6112\u2005(3)\u2005\u00c5. The <jats:italic>trans<\/jats:italic> angles of the base are 155.16\u2005(3) and 173.79\u2005(2)\u00b0. The Cu<jats:bold>...<\/jats:bold>Cu separation in the dimer is 3.4346\u2005(3)\u2005\u00c5. In the crystal structure, the loosely packed dimers are arranged in stacks propagating along the <jats:italic>a<\/jats:italic> axis. The X-band polycrystalline 77\u2005K EPR spectrum of (I) demonstrates a typical axial pattern characteristic of mononuclear Cu<jats:sup>II<\/jats:sup> complexes. Compound (I) is redox active and shows a cyclic voltammetric response with <jats:italic>E<\/jats:italic>\n                  <jats:sub>1\/2<\/jats:sub> = \u22120.037\u2005V <jats:italic>versus<\/jats:italic> silver\u2013silver chloride electrode (SSCE) assignable to the reduction peak of Cu<jats:sup>II<\/jats:sup>\/Cu<jats:sup>I<\/jats:sup> in methanol as solvent.<\/jats:p>","DOI":"10.1107\/s2056989020005903","type":"journal-article","created":{"date-parts":[[2020,5,5]],"date-time":"2020-05-05T08:59:23Z","timestamp":1588669163000},"page":"790-793","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["Crystal structure and characterization of a new copper(II) chloride dimer with methyl(pyridin-2-ylmethylidene)amine"],"prefix":"10.1107","volume":"76","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4315-8399","authenticated-orcid":true,"given":"Olga Yu.","family":"Vassilyeva","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elena A.","family":"Buvaylo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vladimir N.","family":"Kokozay","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrii K.","family":"Melnyk","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brian W.","family":"Skelton","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2020,5,5]]},"reference":[{"key":"pk2625_bb1","doi-asserted-by":"crossref","first-page":"13379","DOI":"10.1039\/c2dt31186k","volume":"41","author":"Bai","year":"2012","journal-title":"Dalton Trans."},{"key":"pk2625_bb2","doi-asserted-by":"crossref","first-page":"407","DOI":"10.1002\/ejic.200500691","volume":"2006","author":"Bai","year":"2006","journal-title":"Eur. 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