{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,5]],"date-time":"2025-12-05T15:47:35Z","timestamp":1764949655112,"version":"3.46.0"},"reference-count":20,"publisher":"International Union of Crystallography (IUCr)","issue":"12","license":[{"start":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T00:00:00Z","timestamp":1762819200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2025,11,11]],"date-time":"2025-11-11T00:00:00Z","timestamp":1762819200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"DOI":"10.13039\/501100006352","name":"Baku State University","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100006352","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Hacettepe University Scientific Research Project Unit","award":["013 D04 602 004"],"award-info":[{"award-number":["013 D04 602 004"]}]}],"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":[[2025,11,6]]},"published-print":{"date-parts":[[2025,12,1]]},"abstract":"<jats:p>\n                    The asymmetric unit of the title compound, tetrakis[8-methylphenanthridin-6(5\n                    <jats:italic>H<\/jats:italic>\n                    )-one-\u03ba\n                    <jats:italic>O<\/jats:italic>\n                    ]bis(nitrato-\u03ba\n                    <jats:italic>O<\/jats:italic>\n                    )copper(II), [Cu(NO\n                    <jats:sub>3<\/jats:sub>\n                    )\n                    <jats:sub>2<\/jats:sub>\n                    (C\n                    <jats:sub>14<\/jats:sub>\n                    H\n                    <jats:sub>11<\/jats:sub>\n                    NO)\n                    <jats:sub>4<\/jats:sub>\n                    ], contains one Cu\n                    <jats:sup>II<\/jats:sup>\n                    cation located on a centre of symmetry, two 8-methylphenanthridin-6(5\n                    <jats:italic>H<\/jats:italic>\n                    )-one (MPHNT) ligands and one nitrate anion, where the Cu\n                    <jats:sup>II<\/jats:sup>\n                    atom is in a slightly distorted octahedral environment. Intramolecular N\u2014H...O hydrogen bonds are observed. In the crystal, C\u2014H...O hydrogen bonds link the molecules, enclosing S(6), S(9) and\n                    <jats:italic>R<\/jats:italic>\n                    <jats:sup>4<\/jats:sup>\n                    <jats:sub>4<\/jats:sub>\n                    (18) ring motifs. In addition \u03c0\u2013\u03c0 interactions with centroid-to-centroid distances of 3.808\u2005(2)\u2005\u00c5 and also a series of C\u2014H...\u03c0(ring) interactions help to consolidate the packing in a three-dimensional architecture within the crystal. A Hirshfeld surface analysis revealed that the most important contributions for the crystal packing are from H...H (41.1%), H...C\/C...H (29.9%), H...O\/O...H (14.8%) and C...C (10.0%) interactions.\n                  <\/jats:p>","DOI":"10.1107\/s2056989025009892","type":"journal-article","created":{"date-parts":[[2025,11,6]],"date-time":"2025-11-06T17:12:47Z","timestamp":1762449167000},"page":"1140-1143","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["Synthesis, crystal structure and Hirshfeld surface analysis of [Cu(NO\n                    <sub>3<\/sub>\n                    )\n                    <sub>2<\/sub>\n                    {8-methylphenanthridin-6(5\n                    <i>H<\/i>\n                    )-one}\n                    <sub>4<\/sub>\n                    ]"],"prefix":"10.1107","volume":"81","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1415-8012","authenticated-orcid":true,"given":"Atash V.","family":"Gurbanov","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tuncer","family":"H\u00f6kelek","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8541-6707","authenticated-orcid":true,"given":"Menberu Mengesha","family":"Woldemariam","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2025,11,11]]},"reference":[{"key":"ee2022_bb1","doi-asserted-by":"crossref","first-page":"116955","DOI":"10.1016\/j.poly.2024.116955","volume":"255","author":"Aliyeva","year":"2024","journal-title":"Polyhedron"},{"key":"ee2022_bb2","doi-asserted-by":"crossref","first-page":"6234","DOI":"10.1021\/cr300527g","volume":"113","author":"Allen","year":"2013","journal-title":"Chem. 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