title: 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.
authors.affiliation: Institut für Anorganische Chemie, Christian-Albrechts-Universität Kiel, Max-Eyth-Strasse 2, 24118 Kiel, Germany.
authors.forename: Julia
authors.initials: J
authors.lastname: Werner
authors.forename: Inke
authors.initials: I
authors.lastname: Jess
authors.forename: Christian
authors.initials: C
authors.lastname: Näther