{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,25]],"date-time":"2025-11-25T20:40:04Z","timestamp":1764103204811,"version":"3.33.0"},"reference-count":18,"publisher":"International Union of Crystallography (IUCr)","issue":"6","license":[{"start":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T00:00:00Z","timestamp":1623715200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T00:00:00Z","timestamp":1623715200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["IUCrData","IUCr Data","International Union Crystallogr Data","Int Union Cryst Data"],"accepted":{"date-parts":[[2021,6,8]]},"published-print":{"date-parts":[[2021,6,28]]},"abstract":"<jats:p>The title compound, [Cu<jats:sub>4<\/jats:sub>(C<jats:sub>9<\/jats:sub>H<jats:sub>11<\/jats:sub>)<jats:sub>4<\/jats:sub>(C<jats:sub>3<\/jats:sub>H<jats:sub>9<\/jats:sub>P)<jats:sub>2<\/jats:sub>] or [Cu<jats:sub>4<\/jats:sub>(Mes)<jats:sub>4<\/jats:sub>(PMe<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>] (Mes = 2,4,6-trimethylphenyl), was synthesized from copper(I) mesityl and trimethylphosphane in THF as solvent. The molecular structure of the complex has <jats:italic>C<\/jats:italic>\n                  <jats:sub>2<\/jats:sub> symmetry and consists of four copper(I) atoms bridged by four <jats:italic>\u03bc<\/jats:italic>-mesityl groups, giving an eight-membered puckered {Cu<jats:sub>4<\/jats:sub>C<jats:sub>4<\/jats:sub>} ring. Additionally, two copper(I) atoms at opposite corners of the Cu<jats:sub>4<\/jats:sub> rhomb are each linked to a terminal PMe<jats:sub>3<\/jats:sub> ligand. The PMe<jats:sub>3<\/jats:sub>-bearing copper(I) atoms exhibit a distorted trigonal\u2013planar coordination mode whereas the remaining Cu atoms linked to two mesityl groups are nearly linearly coordinated.<\/jats:p>","DOI":"10.1107\/s2414314621005940","type":"journal-article","created":{"date-parts":[[2021,6,15]],"date-time":"2021-06-15T08:47:53Z","timestamp":1623746873000},"update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":3,"title":["<i>cyclo<\/i>-Tetrakis(\u03bc-2,4,6-trimethylphenyl-\u03ba<i>C<\/i>\n                  <sup>1<\/sup>:\u03ba<i>C<\/i>\n                  <sup>1<\/sup>)bis(trimethylphosphane)-1\u03ba<i>P<\/i>,3\u03ba<i>P<\/i>-tetracopper(I)"],"prefix":"10.1107","volume":"6","author":[{"given":"Phil","family":"Liebing","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kurt","family":"Merzweiler","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2021,6,15]]},"reference":[{"key":"wm4146_bb1","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1107\/S0021889808042726","volume":"42","author":"Dolomanov","year":"2009","journal-title":"J. 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