(Rb)2KTlBr6 crystallizes in the cubic Fm-3m space group. The structure consists of eight 7440-17-7 atoms inside a KTlBr6 framework. In the KTlBr6 framework, K(1) is bonded to six equivalent Br(1) atoms to form KBr6 octahedra that share corners with six equivalent Tl(1)Br6 octahedra. The corner-sharing octahedra are not tilted. Tl(1) is bonded to six equivalent Br(1) atoms to form TlBr6 octahedra that share corners with six equivalent K(1)Br6 octahedra. The corner-sharing octahedra are not tilted. Br(1) is bonded in a linear geometry to one K(1) and one Tl(1) atom.
(Rb)2KTlBr6 crystallizes in the cubic Fm-3m space group. The structure consists of eight 7440-17-7 atoms inside a KTlBr6 framework. In the KTlBr6 framework, K(1) is bonded to six equivalent Br(1) atoms to form KBr6 octahedra that share corners with six equivalent Tl(1)Br6 octahedra. The corner-sharing octahedra are not tilted. All K(1)-Br(1) bond lengths are 3.14 Å. Tl(1) is bonded to six equivalent Br(1) atoms to form TlBr6 octahedra that share corners with six equivalent K(1)Br6 octahedra. The corner-sharing octahedra are not tilted. All Tl(1)-Br(1) bond lengths are 2.78 Å. Br(1) is bonded in a linear geometry to one K(1) and one Tl(1) atom.