HoMn4(CuO4)3 crystallizes in the cubic Im-3 space group. Ho(1) is bonded to twelve equivalent O(1) atoms to form HoO12 cuboctahedra that share faces with eight equivalent Mn(1)O6 octahedra. 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 Ho(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 42°. Cu(1) is bonded in a square co-planar geometry to four equivalent O(1) atoms. O(1) is bonded to one Ho(1), two equivalent Mn(1), and one Cu(1) atom to form a mixture of distorted edge and corner-sharing OHoMn2Cu tetrahedra.
HoMn4(CuO4)3 crystallizes in the cubic Im-3 space group. Ho(1) is bonded to twelve equivalent O(1) atoms to form HoO12 cuboctahedra that share faces with eight equivalent Mn(1)O6 octahedra. All Ho(1)-O(1) bond lengths are 2.57 Å. 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 Ho(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 42°. All Mn(1)-O(1) bond lengths are 1.99 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 1.94 Å. O(1) is bonded to one Ho(1), two equivalent Mn(1), and one Cu(1) atom to form a mixture of distorted edge and corner-sharing OHoMn2Cu tetrahedra.