Bromoantimonates are compounds containing anions composed of bromide (Br−) and antimony (Sb).
Related compounds include the bromobismuthates, iodoantimonates, bromophosphates, and bromoarsenates.
The angles formed by shared bromine at the antimony are reduced from the theoretical 90° to about 80°.
Hexahaloantimonate(III) ions (SbX63−) can include chlorine or iodine as well as bromine.
[13] Bromoantimonates can be made using a water solution of antimony tribromide, hydrobromic acid, and an amine.
Variants can be made without using water, and heating the antimony tribromide with an amine hydrobromide.
Those with longer alkyl chains have a greater number of solid state phases.