Rb2WBr6 crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent Br(1) atoms to form RbBr12 cuboctahedra that share corners with twelve equivalent Rb(1)Br12 cuboctahedra, faces with six equivalent Rb(1)Br12 cuboctahedra, and faces with four equivalent W(1)Br6 octahedra. W(1) is bonded to six equivalent Br(1) atoms to form WBr6 octahedra that share faces with eight equivalent Rb(1)Br12 cuboctahedra. Br(1) is bonded to four equivalent Rb(1) and one W(1) atom to form a mixture of distorted edge, corner, and face-sharing BrRb4W square pyramids.
Rb2WBr6 crystallizes in the cubic Fm-3m space group. Rb(1) is bonded to twelve equivalent Br(1) atoms to form RbBr12 cuboctahedra that share corners with twelve equivalent Rb(1)Br12 cuboctahedra, faces with six equivalent Rb(1)Br12 cuboctahedra, and faces with four equivalent W(1)Br6 octahedra. All Rb(1)-Br(1) bond lengths are 3.74 Å. W(1) is bonded to six equivalent Br(1) atoms to form WBr6 octahedra that share faces with eight equivalent Rb(1)Br12 cuboctahedra. All W(1)-Br(1) bond lengths are 2.54 Å. Br(1) is bonded to four equivalent Rb(1) and one W(1) atom to form a mixture of distorted edge, corner, and face-sharing BrRb4W square pyramids.