Bis(4-chloropyridinium) tetrachlorido-nickelate(II)

Abstract

In the title compound, (C5H5ClN)2[NiCl4], the dianion lies on a twofold rotation axis. Two cations are linked to each anion by classical N - H⋯Cl hydrogen bonds, and short Cl⋯Cl contacts and Cl⋯π stacking inter-actions [with distances of 3.376 (2) and 3.684 (2) Å, respectively] extend this pattern into a chain. The [NiCl4]2- anion shows significant deviation from ideal tetra-hedral geometry. © 2008 International Union of Crystallography.