Abstract
Complexes with antimony-containing anions, [Ph3MeP]+2[SbI5]2− (I), [Ph3MeP]+2[Sb3I12]3− (II), [Ph3MeP]+3[Sb3I12]3− · Me2C=O (III), and [Ph3MeP]+3[Sb2I9]3− (IV), were synthesized by reacting triphenylmethylphosphonium iodide with antimony iodide. The central atom in the cations of the complexes has a distorted tetrahedral coordination. In the trinuclear anions of complexes II and III, each of the terminal SbI3 groups is bound to the central Sb atom through two μ2- and one μ3 iodine bridges (SbSbSb angles are 103.0° and 102.2°, respectively). In the binuclear anion of complex IV, antimony atoms are linked with each other via three bridging iodine atoms.
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