Said Abdelghafour Messalti, Fatima Setifi, Uwe Böhme, Zouaoui Setifi, Mohammad Hadi Al-Douh
{"title":"Tris(2,2'-bi-pyridine)-iron(II) tris-(di-cyano-methylidene)methane-diide.","authors":"Said Abdelghafour Messalti, Fatima Setifi, Uwe Böhme, Zouaoui Setifi, Mohammad Hadi Al-Douh","doi":"10.1107/S2414314625005036","DOIUrl":null,"url":null,"abstract":"<p><p>The asymmetric unit of the title compound, [Fe(C<sub>10</sub>H<sub>8</sub>N<sub>2</sub>)<sub>3</sub>][C{C(CN)<sub>2</sub>}<sub>3</sub>], contains an iron-bipyridyl unit and one third of two crystallographic independent tris-(di-cyano-methyl-idene)methane-diide units. As a result of crystallographic site symmetry the ratio of cations to anions is 1:1. The tris-(2,2'-bi-pyridine)-iron(II) cation has threefold symmetry. The two crystallographic independent tris-(di-cyano-methyl-idene)methane-diide ions are disordered over two atomic sites having equal occupancy. The anions have 3 symmetry. In the crystal, hydrogen bonds between cations and anions form complex layers parallel to (001). These are supplemented by hydrogen bonds perpendicular to the former, leading to a three-dimensional network.</p>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"10 Pt 6","pages":"x250503"},"PeriodicalIF":0.0000,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12230602/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IUCrData","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1107/S2414314625005036","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/6/1 0:00:00","PubModel":"eCollection","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The asymmetric unit of the title compound, [Fe(C10H8N2)3][C{C(CN)2}3], contains an iron-bipyridyl unit and one third of two crystallographic independent tris-(di-cyano-methyl-idene)methane-diide units. As a result of crystallographic site symmetry the ratio of cations to anions is 1:1. The tris-(2,2'-bi-pyridine)-iron(II) cation has threefold symmetry. The two crystallographic independent tris-(di-cyano-methyl-idene)methane-diide ions are disordered over two atomic sites having equal occupancy. The anions have 3 symmetry. In the crystal, hydrogen bonds between cations and anions form complex layers parallel to (001). These are supplemented by hydrogen bonds perpendicular to the former, leading to a three-dimensional network.
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