EuNbMnBiO6 crystallizes in the cubic F-43m space group. Eu(1) is bonded to twelve equivalent O(1) atoms to form EuO12 cuboctahedra that share corners with twelve equivalent Eu(1)O12 cuboctahedra, faces with six equivalent Bi(1)O12 cuboctahedra, faces with four equivalent Nb(1)O6 octahedra, and faces with four equivalent Mn(1)O6 octahedra. Nb(1) is bonded to six equivalent O(1) atoms to form NbO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, faces with four equivalent Eu(1)O12 cuboctahedra, and faces with four equivalent Bi(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Nb(1)O6 octahedra, faces with four equivalent Eu(1)O12 cuboctahedra, and faces with four equivalent Bi(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. Bi(1) is bonded to twelve equivalent O(1) atoms to form BiO12 cuboctahedra that share corners with twelve equivalent Bi(1)O12 cuboctahedra, faces with six equivalent Eu(1)O12 cuboctahedra, faces with four equivalent Nb(1)O6 octahedra, and faces with four equivalent Mn(1)O6 octahedra. O(1) is bonded in a distorted linear geometry to two equivalent Eu(1), one Nb(1), one Mn(1), and two equivalent Bi(1) atoms.
EuNbMnBiO6 crystallizes in the cubic F-43m space group. Eu(1) is bonded to twelve equivalent O(1) atoms to form EuO12 cuboctahedra that share corners with twelve equivalent Eu(1)O12 cuboctahedra, faces with six equivalent Bi(1)O12 cuboctahedra, faces with four equivalent Nb(1)O6 octahedra, and faces with four equivalent Mn(1)O6 octahedra. All Eu(1)-O(1) bond lengths are 2.88 Å. Nb(1) is bonded to six equivalent O(1) atoms to form NbO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, faces with four equivalent Eu(1)O12 cuboctahedra, and faces with four equivalent Bi(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. All Nb(1)-O(1) bond lengths are 1.99 Å. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Nb(1)O6 octahedra, faces with four equivalent Eu(1)O12 cuboctahedra, and faces with four equivalent Bi(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. All Mn(1)-O(1) bond lengths are 2.08 Å. Bi(1) is bonded to twelve equivalent O(1) atoms to form BiO12 cuboctahedra that share corners with twelve equivalent Bi(1)O12 cuboctahedra, faces with six equivalent Eu(1)O12 cuboctahedra, faces with four equivalent Nb(1)O6 octahedra, and faces with four equivalent Mn(1)O6 octahedra. All Bi(1)-O(1) bond lengths are 2.88 Å. O(1) is bonded in a distorted linear geometry to two equivalent Eu(1), one Nb(1), one Mn(1), and two equivalent Bi(1) atoms.