Bis(4,4'-sulfanediyldipyridinium) tetra-chloridonickelate(II) dichloride.

ABSTRACT

In the title compound, (C10H10N2S)2[NiCl4]Cl2, the Ni(2+) cation is tetra-hedrally coordinated by four chloride anions. Two 4,4'-sulfanediyldipyridinium cations and two non-coordinating chloride anions are connected via N-H⋯Cl hydrogen-bonding inter-actions into 20-membered rings, in the middle of which are situated the [NiCl4](2-) complex anions. These rings are stacked in the b-axis direction. The Ni(2+) cation is located on a twofold rotation axis, whereas the chloride anions and the 4,4'-sulfanediyldipyridinium cations occupy general positions.