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Crystal structures of three zinc(II) halide coordination complexes with quinoline N-oxide
The reaction of one equivalent of zinc(II) halide with two equivalents of quinoline N-oxide (QNO) in methanol yields compounds as ZnX (2)(QNO)(2), where X = Cl (I), Br (II) and I (III), namely, dichloridobis(quinoline N-oxide-κO)zinc(II), [ZnCl(2)(C(9)H(7)NO)(2)], dibromidobis(quinoline N-oxid...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9260350/ https://www.ncbi.nlm.nih.gov/pubmed/35855361 http://dx.doi.org/10.1107/S2056989022005953 |
Sumario: | The reaction of one equivalent of zinc(II) halide with two equivalents of quinoline N-oxide (QNO) in methanol yields compounds as ZnX (2)(QNO)(2), where X = Cl (I), Br (II) and I (III), namely, dichloridobis(quinoline N-oxide-κO)zinc(II), [ZnCl(2)(C(9)H(7)NO)(2)], dibromidobis(quinoline N-oxide-κO)zinc(II), [ZnBr(2)(C(9)H(7)NO)(2)], and diiodidobis(quinoline N-oxide-κO)zinc(II) [ZnI(2)(C(9)H(7)NO)(2)]. In all three complexes, Zn cations are coordinated by two QNO ligands bound through the oxygen atoms and two halide atoms, with X—Zn—X bond angles ca 20° wider than the O—Zn—O, giving rise to a distorted tetrahedral geometry. Crystals of (II) and (III) are isostructural and both show pairwise π-stacking of QNO ligands and weak C—H⋯X hydrogen bonds, while (I) packs differently, with a shorter C—H⋯Cl bond and without π-stacking. |
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