Die Kristallstruktur von SCl3[Re2Cl9] und ihre Verwandtschaft zum RuBr3‐Typ

The Crystal Structure of SCl₃Re₂Cl₉] and its Relation to the RuBr₃ Type SCl₃Re₂Cl₉] was obtained from the reaction of rhenium and SCl₂ at 400 °C. The X‐ray crystal structure determination revealed a monoclinic structure, a = 834.1 pm, b = 1053.3 pm, c = 866.1 pm, β = 91.90°, space group P2₁/m, R₁ = 0.058. The SCl₃⁺ and Re₂Cl₉^– ions have the known structures; the ReRe bond length in the face‐sharing bioctahedron is 272.2 pm. The crystal packing can be derived from the RuBr₃ structure type, which has infinite columns of face‐sharing octahedra; one quarter of the metal atoms are removed and another quarter are replaced by sulfur atoms. The chlorine atoms form a slightly distorted hexagonal closest‐packing. The symmetry relationships are shown in a family tree of group–subgroup relations.