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Two coordination compounds of SnCl(2) with 4-methylpyridine N-oxide
In the solid-state structures of catena-poly[[dichloridotin(II)]-μ(2)-(4-methylpyridine N-oxide)-κ(2) O:O], [SnCl(2)(C(6)H(7)NO)](n), 1, and dichloridobis(4-methylpyridine N-oxide-κO)tin(II), [SnCl(2)(C(6)H(7)NO)(2)], 2, the bivalent tin atoms reveal a seesaw coordination with both chlorine a...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7869548/ https://www.ncbi.nlm.nih.gov/pubmed/33614132 http://dx.doi.org/10.1107/S2056989021000025 |
Sumario: | In the solid-state structures of catena-poly[[dichloridotin(II)]-μ(2)-(4-methylpyridine N-oxide)-κ(2) O:O], [SnCl(2)(C(6)H(7)NO)](n), 1, and dichloridobis(4-methylpyridine N-oxide-κO)tin(II), [SnCl(2)(C(6)H(7)NO)(2)], 2, the bivalent tin atoms reveal a seesaw coordination with both chlorine atoms in equatorial and the Lewis base molecules in axial positions. While the Sn—Cl distances are almost identical, the Sn—O distances vary significantly as a result of the different bonding modes (μ(2) for 1, μ(1) for 2) of the 4-methylpyridin-N-oxide molecules, giving rise to a one-dimensional coordination polymer for the 1:1 adduct, 1, and a molecular structure for the 1:2 adduct, 2. The different coordination modes also influence the bonding parameters within the almost planar ligand molecules, mostly expressed in N—O-bond lengthening and endocyclic bond-angle widening at the nitrogen atoms. Additional supramolecular features are found in the crystal structure of 2 as two adjacent molecules form dimers via additional, weak O⋯Sn interactions. |
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