BiCu3Mn4O12 crystallizes in the cubic Im-3 space group. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra and faces with two equivalent Bi(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 43°. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. Bi(1) is bonded to twelve equivalent O(1) atoms to form BiO12 cuboctahedra that share faces with eight equivalent Mn(1)O6 octahedra. O(1) is bonded in a 3-coordinate geometry to two equivalent Mn(1), one Cu(1), and one Bi(1) atom.
BiCu3Mn4O12 crystallizes in the cubic Im-3 space group. Mn(1) is bonded to six equivalent O(1) atoms to form MnO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra and faces with two equivalent Bi(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 43°. All Mn(1)-O(1) bond lengths are 2.01 Å. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. All Cu(1)-O(1) bond lengths are 1.91 Å. Bi(1) is bonded to twelve equivalent O(1) atoms to form BiO12 cuboctahedra that share faces with eight equivalent Mn(1)O6 octahedra. All Bi(1)-O(1) bond lengths are 2.64 Å. O(1) is bonded in a 3-coordinate geometry to two equivalent Mn(1), one Cu(1), and one Bi(1) atom.