Acta Cryst. (2003). E59, m1115-m1117  [ doi:10.1107/S1600536803025182 ]

1-(2-Bromobenzyl)pyridinium bis(maleodinitriledithiolato)nickelate(III)

X.-M. Ren, J.-L. Xie, Y.-Z. Li and Q.-J. Meng

Abstract: In the title compound, (C₁₂H₁₁BrN)[Ni(C₄N₂S₂)₂], completely segregated columnar stacks of anions and cations are observed. There are three symmetry-independent anions in the asymmetric unit (A, B and C), all of them essentially planar. Two types of anionic columns are both stacked along the b axis of the crystal; columns of the first type are made up entirely of one of the three independent anions (anion A) and have identical NiNi distances of 4.1401 (10) Å, while columns of the second type are made up of alternating anions B and C and have slightly different, alternating NiNi distances [4.1695 (11) and 4.0971 (11) Å]. The columns of -shaped bromobenzylpyridinium cations show no - interactions within the stack; there are, however, short SBr contacts between the anionic and cationic stacks.

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