Acta Cryst. (2007). E63, m3084  [ doi:10.1107/S160053680705814X ]

Bis[1-(4-fluorobenzyl)pyridinium] bis(2,2-dicyanoethene-1,1-dithiolato-²S,S')nickelate(II)

A.-Q. Zhou and C.-L. Ni

Abstract: A new ion-pair complex, (C₁₂H₁₁FN)₂[Ni(C₄N₂S₂)₂] or (FBzPy)₂[Ni(imnt)₂], where FBzPy is 1-(4-fluorobenzyl)pyridinium and imnt is 2,2-dicyanoethene-1,1-dithiolate, was obtained by the direct reaction of NiCl₂, K₂(imnt) and (FBzPy)⁺Br^- in H₂O. The asymmetric unit contains a [FBzPy]⁺ cation and one half of the Ni[imnt]₂^2- anion. The Ni^II ion lies on an inversion centre and adopts a square-planar configuration. In the [FBzPy]⁺ cation, the benzene and pyridinium rings make a dihedral angle of 77.2 (3)°. In the crystal structure, C-HN hydrogen bonds and - interactions [3.450 (3) Å] between ethenyl groups of the Ni[imnt]₂^2- anion and the pyridinium ring of the cation generate a three-dimensional network.

Online 21 November 2007

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