Crystal structure of bis­(ethyl­enedi­thio)­tetra­thia­fulvalenium μ(2)-acetato-bis­[tri­bromido­rhenate(III)] 1,1,2-tri­chloro­ethane hemisolvate

The asymmetric unit of the title salt, (C(10)H(8)S(8))[Re(2)Br(6)(CH(3)COO)]·0.5C(2)H(3)Cl(3), contains one bis­(ethyl­enedi­thio)­tetra­thia­fulvalene (ET) radical cation, one μ(2)-acetato-bis­[tri­bromido­rhenate(III)] anion and a 1,1,2-tri­chloro­ethane mol­ecule with half-occupancy disordered about a twofold rotation axis. The tetra­thia­fulvalene fragment adopts an almost planar configuration typical of the ET radical cation. The C atoms of both ethyl­enedi­thio fragments in the cation are disordered over two orientations with occupancy factors 0.65:0.35 and 0.77:0.23. In the anion, six Br atoms and a μ(2)-acetate ligand form a strongly distorted cubic O(2)Br(6) coordination polyhedron around the Re(2) dinuclear centre. In the crystal, centrosymmetrically related ET cations and Re(2)O(2)Br(6) anions are linked into dimers by π–π stacking inter­actions [centroid-to-centroid distance = 3.826 (8) Å] and by pairs of additional Re⋯Br contacts [3.131 (3) Å], respectively. The dimers are further packed into a three-dimensional network by non-directional inter­ionic electrostatic forces and by C—H⋯Br and C—H⋯S hydrogen bonds. The disordered 1,1,2-tri­chloro­ethane mol­ecules occupy solvent-accessible channels along the b axis.