{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T15:59:55Z","timestamp":1786118395932,"version":"build-2736575974"},"reference-count":0,"publisher":"International Union of Crystallography (IUCr)","issue":"8","license":[{"start":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T00:00:00Z","timestamp":1784764800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T00:00:00Z","timestamp":1784764800000},"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":[[2026,7,17]]},"published-print":{"date-parts":[[2026,8,1]]},"abstract":"<jats:p>\n                    The asymmetric unit of the title compound, [Cu\n                    <jats:sub>2<\/jats:sub>\n                    I\n                    <jats:sub>2<\/jats:sub>\n                    (C\n                    <jats:sub>6<\/jats:sub>\n                    H\n                    <jats:sub>8<\/jats:sub>\n                    N\n                    <jats:sub>2<\/jats:sub>\n                    )]\n                    <jats:sub>\n                      <jats:italic>n<\/jats:italic>\n                    <\/jats:sub>\n                    , consists of six crystallographically independent Cu\n                    <jats:sup>I<\/jats:sup>\n                    cations, six unique iodide anions and three independent 2,6-dimethylpyrazine ligands, all of them located in general positions. Three of the six copper cations display trigonal planar coordinations (one 2,6-dimethylpyrazine ligand and two iodide ions), whereas the remaining cations are tetrahedrally coordinated (one 2,6-dimethylpyrazine ligand and three iodide ions). In the extended structure, two different CuI substructures are observed. In one of them, discrete (CuI)\n                    <jats:sub>4<\/jats:sub>\n                    units are observed, which show a ladder-like arrangement. Two of the cations are threefold, the other two cations are fourfold coordinated and are linked by two \u03bc-1,1 and two \u03bc-1,1,1 bridging iodide anions. In the other substructure (CuI)\n                    <jats:sub>2<\/jats:sub>\n                    rings built up of one threefold and one fourfold coordinated copper cation as well as one \u03bc-1,1 and one \u03bc-1,1,1 bridging iodide anion are connected into chains. These CuI substructures are linked by bridging 2,6-dimethylpyrazine ligands into layers that lie parallel to the\n                    <jats:italic>ab<\/jats:italic>\n                    plane. The layers are connected by a number of C\u2014H...I interactions. Analyzing the CuI substructures in related copper(I) iodide coordination compounds with pyrazine derivatives as neutral ligands revealed that the same ladder-like CuI substructure is observed in all of them, which is completely different from that observed in the title compound.\n                  <\/jats:p>","DOI":"10.1107\/s2056989026007358","type":"journal-article","created":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T08:20:36Z","timestamp":1784622036000},"page":"957-962","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["Synthesis and crystal structure of poly[\u03bc-2,6-dimethylpyrazine-\u03bc\n                    <sub>3<\/sub>\n                    -iodido-\u03bc\n                    <sub>2<\/sub>\n                    -iodido-dicopper(I)] with an unusual CuI substructure"],"prefix":"10.1107","volume":"82","author":[{"given":"Christian","family":"N\u00e4ther","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2026,7,23]]},"container-title":["Acta Crystallographica Section E Crystallographic Communications"],"original-title":[],"link":[{"URL":"https:\/\/journals.iucr.org\/e\/issues\/2026\/08\/00\/hb8229\/hb8229.pdf","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.iucr.org\/e\/issues\/2026\/08\/00\/hb8229\/hb8229.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T15:46:30Z","timestamp":1786031190000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.iucr.org\/paper?S2056989026007358"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7,23]]},"references-count":0,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2026,8]]}},"alternative-id":["S2056989026007358"],"URL":"https:\/\/doi.org\/10.1107\/s2056989026007358","relation":{"is-supplemented-by":[{"id-type":"doi","id":"10.1107\/S2056989026007358\/hb8229sup1.cif","asserted-by":"subject"},{"id-type":"doi","id":"10.1107\/S2056989026007358\/hb8229Isup2.hkl","asserted-by":"subject"}]},"ISSN":["2056-9890"],"issn-type":[{"value":"2056-9890","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7,23]]},"assertion":[{"value":"Acta Crystallographica Section E: Crystallographic Communications","order":0,"name":"journal","label":"Publication","explanation":{"URL":"https:\/\/journals.iucr.org\/e"},"group":{"name":"general","label":"General"}},{"value":"research communications","order":1,"name":"content_type","label":"Content type","explanation":{"URL":"https:\/\/journals.iucr.org\/e\/services\/notesforauthors.html"},"group":{"name":"general","label":"General"}},{"value":"Available","URL":"https:\/\/scripts.iucr.org\/cgi-bin\/citedin?hb8229","order":2,"name":"article_metrics","label":"Article metrics","group":{"name":"general","label":"General"}},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"1 June 2026","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication history"}},{"value":"17 July 2026","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication history"}},{"value":"23 July 2026","order":2,"name":"published_online","label":"Published online","group":{"name":"publication_history","label":"Publication history"}},{"value":"This article has supporting information","name":"supplementary_materials","label":"Supplementary materials","explanation":{"URL":"https:\/\/scripts.iucr.org\/cgi-bin\/sendsup?hb8229"}},{"value":"\u00a9 2026 Christian N\u00e4ther","order":0,"name":"copyright","label":"Copyright","explanation":{"URL":"https:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},"group":{"name":"copyright_and_licencing","label":"Copyright and licencing"}},{"value":"Creative Commons Attribution (CC-BY)","order":1,"name":"license","label":"Licence","explanation":{"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},"group":{"name":"copyright_and_licencing","label":"Copyright and licencing"}}]}}