Fig. 2. Solid state structure of the cations in [AsCl(BIMEt3)][OTf]2 (a), [SbF(BIMEt3)][OTf]2 (b), [As(BIMEt3)][OTf]3 (c), and [Sb(BIMEt3)][OTf]3 (d). Thermal ellipsoids are shown at a 50% probability level. Oxygen atoms of the triflate anions that interact with the pnictogen centres are shown, but the other atoms of the anions are omitted for clarity as well as the hydrogen atoms and solvent molecules. Interatomic distances and angles are summarized in Table 3.
