{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T20:30:15Z","timestamp":1768681815700,"version":"3.49.0"},"reference-count":0,"publisher":"International Union of Crystallography (IUCr)","issue":"8","license":[{"start":{"date-parts":[[2018,7,6]],"date-time":"2018-07-06T00:00:00Z","timestamp":1530835200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/legalcode"},{"start":{"date-parts":[[2018,7,6]],"date-time":"2018-07-06T00:00:00Z","timestamp":1530835200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/legalcode"}],"funder":[{"DOI":"10.13039\/501100002717","name":"Minist\u00e8re de l'Enseignement Sup\u00e9rieur et de la Recherche Scientifique, Agence Th\u00e9matique de Recherche en Sciences et Technologie","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100002717","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Universit\u00e9 Fr\u00e8res Mentouri Constantine, Algeria"},{"name":"Biotechnology Research Center, Constantine, Algeria"}],"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"],"published-print":{"date-parts":[[2018,8,1]]},"abstract":"<jats:p>The synthesis and characterization of diaquabis[2-(2-hydroxyethyl)pyridine-\u03ba<jats:sup>2<\/jats:sup>\n                  <jats:italic>N<\/jats:italic>,<jats:italic>O<\/jats:italic>)nickel(II) dinitrate, [Ni(C<jats:sub>7<\/jats:sub>H<jats:sub>9<\/jats:sub>NO)<jats:sub>2<\/jats:sub>(H<jats:sub>2<\/jats:sub>O)<jats:sub>2<\/jats:sub>](NO<jats:sub>3<\/jats:sub>)<jats:sub>2<\/jats:sub>, under ambient conditions is reported and compared with <jats:italic>catena<\/jats:italic>-poly[[bis[2-(2-hydroxyethyl)pyridine-\u03ba<jats:sup>2<\/jats:sup>\n                  <jats:italic>N<\/jats:italic>,<jats:italic>O<\/jats:italic>]copper(II)]-\u03bc-sulfato-\u03ba<jats:sup>2<\/jats:sup>\n                  <jats:italic>O<\/jats:italic>:<jats:italic>O<\/jats:italic>\u2032], [Cu(C<jats:sub>7<\/jats:sub>H<jats:sub>9<\/jats:sub>NO)<jats:sub>2<\/jats:sub>(SO<jats:sub>4<\/jats:sub>)]<jats:sub>\n                     <jats:italic>n<\/jats:italic>\n                  <\/jats:sub> [Zeghouan <jats:italic>et al.<\/jats:italic> (2016). Private communication (refcode 1481676). CCDC, Cambridge, England]. In the two complexes, the 2-(2-hydroxyethyl)pyridine ligands coordinate the metal ions through the N atom of the pyridine ring and the O atom of the hydroxy group, creating a chelate ring. The Ni<jats:sup>II<\/jats:sup> or Cu<jats:sup>II<\/jats:sup> ion lies on an inversion centre and exhibits a slightly distorted <jats:italic>M<\/jats:italic>O<jats:sub>4<\/jats:sub>N<jats:sub>2<\/jats:sub> octahedral coordination geometry, build up by O and N atoms from two 2-(2-hydroxyethyl)pyridine ligands and two water molecules or two O atoms belonging to sulfate anions. The sulfate anion bridges the Cu<jats:sup>II<\/jats:sup> ions, forming a polymeric chain. The photoluminescence properties of these complexes have been studied on as-synthesized samples and reveal that both compounds display a strong blue-light emission with maxima around 497\u2005nm. From DFT\/TDDFT studies, the blue emission appears to be derived from the ligand-to-metal charge-transfer (LMCT) excited state. In addition, the IR spectroscopic properties and thermogravimetric behaviours of both complexes have been investigated.<\/jats:p>","DOI":"10.1107\/s2056989018009301","type":"journal-article","created":{"date-parts":[[2018,7,6]],"date-time":"2018-07-06T08:30:39Z","timestamp":1530865839000},"page":"1042-1048","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":8,"title":["A strongly fluorescent Ni<sup>II<\/sup> complex with 2-(2-hydroxyethyl)pyridine ligands: synthesis, characterization and theoretical analysis and comparison with a related polymeric Cu<sup>II<\/sup> complex"],"prefix":"10.1107","volume":"74","author":[{"given":"Ouahida","family":"Zeghouan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed AbdEsselem","family":"Dems","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seifeddine","family":"Sellami","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hocine","family":"Merazig","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4833-7895","authenticated-orcid":true,"given":"Jean Claude","family":"Daran","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2018,7,6]]},"container-title":["Acta Crystallographica Section E Crystallographic Communications"],"original-title":[],"link":[{"URL":"http:\/\/journals.iucr.org\/e\/issues\/2018\/08\/00\/vn2135\/vn2135.pdf","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.iucr.org\/e\/issues\/2018\/08\/00\/vn2135\/vn2135.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,13]],"date-time":"2025-01-13T11:10:59Z","timestamp":1736766659000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.iucr.org\/paper?S2056989018009301"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,7,6]]},"references-count":0,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2018,8]]}},"alternative-id":["S2056989018009301"],"URL":"https:\/\/doi.org\/10.1107\/s2056989018009301","relation":{},"ISSN":["2056-9890"],"issn-type":[{"value":"2056-9890","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,7,6]]},"assertion":[{"value":"Acta Crystallographica Section E: Crystallographic Communications","order":0,"name":"journal","label":"Publication","explanation":{"URL":"http:\/\/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":"http:\/\/scripts.iucr.org\/cgi-bin\/citedin?vn2135","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":"5 June 2018","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication history"}},{"value":"27 June 2018","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication history"}},{"value":"6 July 2018","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":"http:\/\/scripts.iucr.org\/cgi-bin\/sendsup?vn2135"}},{"value":"\u00a9 2018 Zeghouan et al.","order":0,"name":"copyright","label":"Copyright","explanation":{"URL":"http:\/\/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":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/legalcode"},"group":{"name":"copyright_and_licencing","label":"Copyright and licencing"}}]}}