Ho3Y is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ho(1) is bonded to eight equivalent Ho(1) and four equivalent Y(1) atoms to form HoY4Ho8 cuboctahedra that share corners with twelve equivalent Ho(1)Y4Ho8 cuboctahedra, edges with eight equivalent Y(1)Ho12 cuboctahedra, edges with sixteen equivalent Ho(1)Y4Ho8 cuboctahedra, faces with four equivalent Y(1)Ho12 cuboctahedra, and faces with fourteen equivalent Ho(1)Y4Ho8 cuboctahedra. Y(1) is bonded to twelve equivalent Ho(1) atoms to form YHo12 cuboctahedra that share corners with twelve equivalent Y(1)Ho12 cuboctahedra, edges with twenty-four equivalent Ho(1)Y4Ho8 cuboctahedra, faces with six equivalent Y(1)Ho12 cuboctahedra, and faces with twelve equivalent Ho(1)Y4Ho8 cuboctahedra.
Ho3Y is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ho(1) is bonded to eight equivalent Ho(1) and four equivalent Y(1) atoms to form HoY4Ho8 cuboctahedra that share corners with twelve equivalent Ho(1)Y4Ho8 cuboctahedra, edges with eight equivalent Y(1)Ho12 cuboctahedra, edges with sixteen equivalent Ho(1)Y4Ho8 cuboctahedra, faces with four equivalent Y(1)Ho12 cuboctahedra, and faces with fourteen equivalent Ho(1)Y4Ho8 cuboctahedra. All Ho(1)-Ho(1) bond lengths are 3.55 Å. All Ho(1)-Y(1) bond lengths are 3.55 Å. Y(1) is bonded to twelve equivalent Ho(1) atoms to form YHo12 cuboctahedra that share corners with twelve equivalent Y(1)Ho12 cuboctahedra, edges with twenty-four equivalent Ho(1)Y4Ho8 cuboctahedra, faces with six equivalent Y(1)Ho12 cuboctahedra, and faces with twelve equivalent Ho(1)Y4Ho8 cuboctahedra.