Abstract
The title molecular salts, C15H20NO+·C4H3O4−, (I), and C9H15INO+·C4H3O4−, (II), have very similar molecular geometries for both cation and anion. The anions of both (I) and (II) are practically planar (r.m.s. deviations = 0.062 and 0.072 Å, respectively) and adopt a rare symmetrical geometry with the hydroxy H atom approximately equidistant from the two O atoms. In their crystals, the cations and anions in both (I) and (II) form tight ionic pairsviastrong N—H...O hydrogen bonds, with a roughly perpendicular disposition of the anion to the furan ring of the cation. This ion-pair conformation appears to correlate with the lack of reactivity of these salts in [4 + 2] cycloaddition reactions. In the extended structures of (I) and (II), the ion pairs form hydrogen-bonded chains propagating along [010] and [001], respectively,viaN—H...O hydrogen bonds.
Publisher
International Union of Crystallography (IUCr)
Subject
Condensed Matter Physics,General Materials Science,General Chemistry
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Crystal structure, Hirshfeld surface analysis and DFT study of (5E,5′E,6Z,6′Z)-6,6′-[ethane-1,2-diylbis(azanylylidene)]bis{5-[2-(4-fluorophenyl)hydrazono]-3,3-dimethylcyclohexanone} 2.5-hydrate;Acta Crystallographica Section E Crystallographic Communications;2023-03-10
2. Crystal Structure of 1,2,4,1',2',4'-Hexamethylferrocene;Russian Journal of Coordination Chemistry;2020-01
3. CRYSTAL STRUCTURE OF (E)-N′-((1H-PYRROL-2-YL)METHYLENE)-4-HYDROXYBENZOHYDRAZIDE;Journal of the Chilean Chemical Society;2019-09
4. CRYSTAL STRUCTURE AND HIRSHFELD SURFACE ANALYSIS OF (E)-5-PHENYL-3-((4-(TRIFLUOROMETHYL)BENZYLIDENE)AMINO)THIAZOLIDIN-2-IMINIUM BROMIDE;Journal of the Chilean Chemical Society;2019-06
5. Crystal structure of dimethyl (3aS,6R,6aS,7S)-2-pivaloyl-2,3-dihydro-1H,6H,7H-3a,6:7,9a-diepoxybenzo[de]isoquinoline-3a1,6a-dicarboxylate, C21H25NO8;Zeitschrift für Kristallographie - New Crystal Structures;2019-03-26