Bis[(2-chloro-4-fluoro­benz­yl)triphenyl­phospho­nium] bis­(1,2,5-thia­diazole-3,4-dithiol­ato)nickelate(II)

The title ion-pair complex, (C(25)H(20)ClFP)(2)[Ni(C(2)N(2)S(3))(2)], was obtained by the direct reaction of (4-F,2-ClBzTPP)(+)·Br(−) [4-F,2-ClBzTPP(+) is (2-chloro-4-fluoro­benz­yl)triphenyl­phos­pho­nium], NiCl(2)·6H(2)O and Na(2)tdas (tdas(2−) is 1,2,5-thia­diazole-3,4-dithiol­ate) in methanol. The asymmetric unit of the title structure comprises one (4-F,2-ClBzTPP)(+) cation and half of an [Ni(tdas)(2)](2−) complex anion, with the Ni(II) ion situated on a center of symmetry, leading to a slightly distorted square-planar coordination of the latter. In the cation, the tetra­hedral angles around the P atom are nearly undistorted. In the crystal, the cations and anions are linked by C—H⋯S, C—H⋯N and C—H⋯Cl hydrogen bonds.