[[WS4Cu4(4,4'-bpy)4][WS4Cu4I4(4,4'-bpy)2]]infinity--an unusual 3D porous coordination polymer formed from the preformed cluster [Et4N]4[WS4Cu4I6].

[[WS4Cu4(4,4'-bpy)4][WS4Cu4I4(4,4'-bpy)2]]infinity--an unusual 3D porous coordination polymer formed from the preformed cluster [Et4N]4[WS4Cu4I6].