{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T12:07:34Z","timestamp":1788782854929,"version":"build-2803163510"},"reference-count":18,"publisher":"International Union of Crystallography (IUCr)","issue":"9","license":[{"start":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T00:00:00Z","timestamp":1786665600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T00:00:00Z","timestamp":1786665600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/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":[[2026,8,10]]},"published-print":{"date-parts":[[2026,9,1]]},"abstract":"<jats:p>\n                    The copper-rich intermetallic compounds CaCu\n                    <jats:sub>5<\/jats:sub>\n                    and SrCu\n                    <jats:sub>5<\/jats:sub>\n                    are isostructural but the isomorphous compound BaCu\n                    <jats:sub>5<\/jats:sub>\n                    (barium pentacopper) has not been reported. The absence of any compound with the composition of BaCu\n                    <jats:sub>5<\/jats:sub>\n                    in the Ba\u2013Cu phase diagram has previously been attributed to much larger radius of Ba. The structure of BaCu\n                    <jats:sub>5<\/jats:sub>\n                    , which crystallizes in an orthorhombic cell (space group\n                    <jats:italic>Pnma<\/jats:italic>\n                    ) with the rare SrZn\n                    <jats:sub>5<\/jats:sub>\n                    structure type is now reported The structure is characterized by a zigzag arrangement of infinite Ba chains ensconced in a Cu matrix. The Ba atom and three Cu atoms lie on special positions with\n                    <jats:italic>m<\/jats:italic>\n                    site symmetry and one Cu atom lies on a general crystallographic position.\n                  <\/jats:p>","DOI":"10.1107\/s2056989026008248","type":"journal-article","created":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T05:20:59Z","timestamp":1786425659000},"page":"1016-1018","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["Crystal structure of the \u2018missing\u2019 intermetallic compound BaCu\n                    <sub>5<\/sub>"],"prefix":"10.1107","volume":"82","author":[{"given":"Kiran","family":"Avinash","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Justin","family":"Andrews","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2026,8,14]]},"reference":[{"key":"hb8240_bb1","doi-asserted-by":"crossref","first-page":"549","DOI":"10.1016\/j.jallcom.2017.06.134","volume":"722","author":"Boeije","year":"2017","journal-title":"J. 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