Bismuth complexes [p-Tol4P]+2[Bi2I8(THF)2]2–, [p-Tol4Sb]+2[Bi2I8(THF)2]2–, [p-Tol4P]+2[Bi2I8(DMSO)2]2–, [Bu4P]+ n [(Bi2I7) n ] n–, [p-Tol4P]+ n [(Bi2I7) n ] n–, and [p-Tol4Sb]+ n [(Bi2I7) n ] n–: Synthesis and structure

The complexes [p-Tol4P] 2 + [Bi2I8(THF)2]2–, [p-Tol4Sb] 2 + [Bi2I8(THF)2]2–, [p-Tol4P] 2 + [Bi2I8(DMSO)2]2–, [Bu4P] + [(Bi2I7) n ] n–, [p-Tol4P] n +[(Bi2I7) n ] n–, and [p-Tol4Sb] + [(Bi2I7) n ] n– were synthesized by the reaction between bismuth iodides and tetrabutyl- and tetraphenylphosphonium, tetra-para-tolylphosphonium and -stibonium iodides in tetrahydrofuran, dimethyl sulfoxide, acetone, and ethyl cellosolve. The crystal structures of the synthesized complexes containing bi- and polynuclear anions with an octahedral coordination of bismuth atoms were characterized by X-ray diffraction.