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Crystal structure of tetrakis[μ(2)-2-(dimethylamino)ethanolato-κ(3) N,O:O]di-μ(3)-hydroxido-dithiocyanato-κ(2) N-dichromium(III)dilead(II) dithiocyanate acetonitrile monosolvate
The tetranuclear complex cation of the title compound, [Cr(2)Pb(2)(NCS)(2)(OH)(2)(C(4)H(10)NO)(4)](SCN)(2)·CH(3)CN, lies on an inversion centre. The main structural feature of the cation is a distorted seco-norcubane Pb(2)Cr(2)O(6) cage with a central four-membered Cr(2)O(2) ring. The Cr(III) ion i...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4910341/ https://www.ncbi.nlm.nih.gov/pubmed/27375871 http://dx.doi.org/10.1107/S2056989016003996 |
Sumario: | The tetranuclear complex cation of the title compound, [Cr(2)Pb(2)(NCS)(2)(OH)(2)(C(4)H(10)NO)(4)](SCN)(2)·CH(3)CN, lies on an inversion centre. The main structural feature of the cation is a distorted seco-norcubane Pb(2)Cr(2)O(6) cage with a central four-membered Cr(2)O(2) ring. The Cr(III) ion is coordinated in a distorted octahedron, which involves two N atoms of one bidentate ligand and one thiocyanate anion, two μ(2)-O atoms of 2-(dimethylamino)ethanolate ligands and two μ(3)-O atoms of hydroxide ions. The coordination geometry of the Pb(II) ion is a distorted disphenoid, which involves one N atom, two μ(2)-O atoms and one μ(3)-O atom. In addition, weak Pb⋯S interactions involving the coordinating and non-coordinating thiocyanate anions are observed. In the crystal, the complex cations are linked through the thiocyanate anions via the Pb⋯S interactions and O—H⋯N hydrogen bonds into chains along the c axis. The chains are further linked together via S⋯S contacts. The contribution of the disordered solvent acetonitrile molecule was removed with the SQUEEZE [Spek (2015 ▸). Acta Cryst. C71, 9–18] procedure in PLATON. The solvent is included in the reported molecular formula, weight and density. |
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