Cs2PrCuBr6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Cs(1) is bonded to twelve equivalent Br(1) atoms to form CsBr12 cuboctahedra that share corners with twelve equivalent Cs(1)Br12 cuboctahedra, faces with six equivalent Cs(1)Br12 cuboctahedra, faces with four equivalent Pr(1)Br6 octahedra, and faces with four equivalent Cu(1)Br6 octahedra. Pr(1) is bonded to six equivalent Br(1) atoms to form PrBr6 octahedra that share corners with six equivalent Cu(1)Br6 octahedra and faces with eight equivalent Cs(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Cu(1) is bonded to six equivalent Br(1) atoms to form CuBr6 octahedra that share corners with six equivalent Pr(1)Br6 octahedra and faces with eight equivalent Cs(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. Br(1) is bonded in a distorted linear geometry to four equivalent Cs(1), one Pr(1), and one Cu(1) atom.
Cs2PrCuBr6 is (Cubic) Perovskite-derived structured and crystallizes in the cubic Fm-3m space group. Cs(1) is bonded to twelve equivalent Br(1) atoms to form CsBr12 cuboctahedra that share corners with twelve equivalent Cs(1)Br12 cuboctahedra, faces with six equivalent Cs(1)Br12 cuboctahedra, faces with four equivalent Pr(1)Br6 octahedra, and faces with four equivalent Cu(1)Br6 octahedra. All Cs(1)-Br(1) bond lengths are 3.99 Å. Pr(1) is bonded to six equivalent Br(1) atoms to form PrBr6 octahedra that share corners with six equivalent Cu(1)Br6 octahedra and faces with eight equivalent Cs(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. All Pr(1)-Br(1) bond lengths are 2.92 Å. Cu(1) is bonded to six equivalent Br(1) atoms to form CuBr6 octahedra that share corners with six equivalent Pr(1)Br6 octahedra and faces with eight equivalent Cs(1)Br12 cuboctahedra. The corner-sharing octahedra are not tilted. All Cu(1)-Br(1) bond lengths are 2.72 Å. Br(1) is bonded in a distorted linear geometry to four equivalent Cs(1), one Pr(1), and one Cu(1) atom.