Tris(N,N-di­methyl­anilinium) tri-μ-bromido-bis[tribromido­anti­monate(III)]

In the title compound, (C₈H₁₂N)₃[Sb₂Br₉], two of the three unique N,N-dimethyanilinium cations exhibit flip–flop disorder with an occupancy ratio of 0.58 (1):0.42 (1). N—H...Br hydrogen bonds link the organic cations and bioctahedral face-sharing anions into a three-dimensional network.

catena-Poly[N,N,N′,N′-tetra­methyl­ethylendi­ammonium [[tetra­bromido­antimonate(III)]-μ-bromido] hemihydrate]

The asymmetric unit of the title compound {(C₆H₁₈N₂)₂[Sb₂Br₁₀]·H₂O}_n, consists of two tetra­methyl­ethylendi­ammonium cations that are located on centres of inversion, as well as one tetra­methyl­ethylendi­ammonium cation, one water mol­ecule, one distorted octahedral [SbBr₆]³⁻anion and one bisphenoidal [SbBr₄]⁻ anion in general positions. The [SbBr₆]³⁻ and [SbBr₄]⁻ anions are linked together by two long Sb—Br bonds of 3.2709 (8) and 3.5447 (7) Å into {[Sb₂Br₁₀]⁴⁻}_n chains along [001]. One of the three tetra­methyl­ethylendi­ammonium cations is disordered and was refined using a split model (occupancy ratio 0.58:0.42). The cations and the water mol­ecule are connected to the {[Sb₂Br₁₀]⁴⁻}_n polymeric anions by weak N—H ...Br and O(water)—H ...Br hydrogen bonding.