Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 6 (June 2013)

metal-organic compounds

Acta Cryst. (2013). E69, m332    [ doi:10.1107/S1600536813013135 ]

Tris(ethyl­enedi­amine)­cobalt(II) dichloride

K. Cooke, A. V. Olenev and K. Kovnir

Abstract: The title compound, [CoII(C2H8N2)3]Cl2, was obtained unexpectedly as the product of an attempted solvothermal synthesis of cobalt selenide from the elements in the presence of NH4Cl in ethyl­enedi­amine solvent. The three chelate rings of the distorted octa­hedral [Co(C2H8N2)3]2+ complex cation adopt twisted conformations about their C-C bonds. The spread of cis-N-Co-N bond angles [80.17 (6)-98.10 (6)°] in the title compound is considerably greater than the equivalent data for [CoIII(C2H8N2)3]Cl3 [Takamizawa et al. (2008). Angew. Chem. Int. Ed. 47, 1689-1692]. In the crystal, the components are linked by numerous N-H...Cl hydrogen bonds, generating a three-dimensional network in which the cationic complexes are stacked in columns along [010] and separated by columns of chloride anions.

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