Bis[1,2-bis-(4-chloro-phen-yl)-ethyl-ene-1,2-dithiol-ato(1-)]nickel(II).

The title compound, [Ni(S 2 C 2 (C 6 H 4 - p -Cl) 2 ) 2 ] or [Ni(C 14 H 8 Cl 2 S 2 ) 2 ], crystallizes in the triclinic space group P as pairs of mol-ecules disposed about an inversion center at the bc face of the cell. Close inter-molecular C-H⋯S (2.884 Å) and C-H⋯Ni (3.032 Å) contacts that are less than the sum of the van der Waals radii appear to induce slight bowing of the mol-ecular planes toward one another. The angles at which the four p- ClC 6 H 4 - rings join the NiS 2 C 2 chelate rings [39.37 (9)- 53.41 (6)°] are similarly influenced by these inter-molecular contacts. In the larger packing arrangement, sheets of mol-ecules extend in the direction of the ac face diagonal.