Acta Cryst. (2012). E68, m81  [ doi:10.1107/S1600536811054602 ]

Bis[-N-(diethylamino-N)dimethylsilylanilido-²N:N]bis[chloridocobalt(II)]

J. Chen

Abstract: In the title binuclear Co^II complex, [Co₂(C₁₂H₂₁N₂Si)₂Cl₂], an inversion center is located at the mid-point between the two Co atoms in the dimeric molecule. The bidentate N-silylated anilide ligand coordinates the Co^II atom in an N,N'-chelating mode and provides the anilide N atom as a bridge to link two Co^II atoms. The two ends of the N-Si-N chelating unit exhibit different affinities for the metal atom. The Co-N_anilide bond is 2.031 (6) Å and Co-N_amino bond is 2.214 (6) Å. The four-coordinate Co atom presents a distorted tetrahedral geometry, while the dimeric aggregation exhibits a (CoN)₂ rhombus core with 1.998 (6) Å as the shortest sides and shows a ladder structure composed of Co, N and Si atoms.

Online 23 December 2011

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