Acta Cryst. (2007). E63, m2980  [ doi:10.1107/S1600536807055821 ]

Bis[2-(4-bromobenzyl)isoquinolinium] bis(1,2-dicyanoethene-1,2-dithiolato-²S,S')nickel(II)

A.-Q. Zhou, J.-R. Zhou and C.-L. Ni

Abstract: The new title nickel(II) complex, (C₁₆H₁₃BrN)₂[Ni(C₄N₂S₂)₂], is a salt obtained by the direct reaction of NiCl₂, disodium maleonitriledithiolate (Na₂mnt) and 1-(4-bromobenzyl)isoquinolinium bromide, (BrBzIQl)⁺Br^-, in methanol. The structure contains two (BrBzIQl)⁺ cations and an Ni(mnt)₂^2- anion in the asymmetric unit. In the two (BrBzIQl)⁺ cations, the dihedral angles between the benzene ring and the isoquinoline plane are 71.0 (4) and 82.1 (4)°. The [Ni(mnt)₂]^2- anion exhibits a slightly distorted square-planar coordination geometry. The crystal structure is stabilized by three weak C-HN hydrogen bonds and a - stacking interaction involving the benzene ring and isoquinoline plane [centroid-centroid separation 3.774 (2) Å]

Online 14 November 2007

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