Th3Ho is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Th(1) is bonded to eight equivalent Th(1) and four equivalent Ho(1) atoms to form ThHo4Th8 cuboctahedra that share corners with twelve equivalent Th(1)Ho4Th8 cuboctahedra, edges with eight equivalent Ho(1)Th12 cuboctahedra, edges with sixteen equivalent Th(1)Ho4Th8 cuboctahedra, faces with four equivalent Ho(1)Th12 cuboctahedra, and faces with fourteen equivalent Th(1)Ho4Th8 cuboctahedra. Ho(1) is bonded to twelve equivalent Th(1) atoms to form HoTh12 cuboctahedra that share corners with twelve equivalent Ho(1)Th12 cuboctahedra, edges with twenty-four equivalent Th(1)Ho4Th8 cuboctahedra, faces with six equivalent Ho(1)Th12 cuboctahedra, and faces with twelve equivalent Th(1)Ho4Th8 cuboctahedra.
Th3Ho is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Th(1) is bonded to eight equivalent Th(1) and four equivalent Ho(1) atoms to form ThHo4Th8 cuboctahedra that share corners with twelve equivalent Th(1)Ho4Th8 cuboctahedra, edges with eight equivalent Ho(1)Th12 cuboctahedra, edges with sixteen equivalent Th(1)Ho4Th8 cuboctahedra, faces with four equivalent Ho(1)Th12 cuboctahedra, and faces with fourteen equivalent Th(1)Ho4Th8 cuboctahedra. All Th(1)-Th(1) bond lengths are 3.57 Å. All Th(1)-Ho(1) bond lengths are 3.57 Å. Ho(1) is bonded to twelve equivalent Th(1) atoms to form HoTh12 cuboctahedra that share corners with twelve equivalent Ho(1)Th12 cuboctahedra, edges with twenty-four equivalent Th(1)Ho4Th8 cuboctahedra, faces with six equivalent Ho(1)Th12 cuboctahedra, and faces with twelve equivalent Th(1)Ho4Th8 cuboctahedra.