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The title compound, [Ni(CH3CN)2{(CH3)2NCOCH3}4](BF4)2, has an octahedral coordination structure with the centre of symmetry at the Ni atom. Both of the two crystallographically inequivalent N,N-dimethylacetamide (DMA) molecules have normal coordination bond lengths Ni-O and angles Ni-O-C, but one of the Ni-O-C-N torsion angles deviates from 180°, indicating that the Ni-O bond is displaced from the direction of the lone pair of the sp2 O atom. It is ascribed to the steric hindrance of DMA coordination in an octahedral environment, which is imposed by the non-bonding contact of the acetyl methyl group with the ligating oxygen atom of the adjacent DMA molecule.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks global, 1

fcf

Structure factor file (CIF format)
Contains datablock nidma4

CCDC reference: 129362

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