Th3Dy 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 Dy(1) atoms to form ThDy4Th8 cuboctahedra that share corners with twelve equivalent Th(1)Dy4Th8 cuboctahedra, edges with eight equivalent Dy(1)Th12 cuboctahedra, edges with sixteen equivalent Th(1)Dy4Th8 cuboctahedra, faces with four equivalent Dy(1)Th12 cuboctahedra, and faces with fourteen equivalent Th(1)Dy4Th8 cuboctahedra. Dy(1) is bonded to twelve equivalent Th(1) atoms to form DyTh12 cuboctahedra that share corners with twelve equivalent Dy(1)Th12 cuboctahedra, edges with twenty-four equivalent Th(1)Dy4Th8 cuboctahedra, faces with six equivalent Dy(1)Th12 cuboctahedra, and faces with twelve equivalent Th(1)Dy4Th8 cuboctahedra.
Th3Dy 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 Dy(1) atoms to form ThDy4Th8 cuboctahedra that share corners with twelve equivalent Th(1)Dy4Th8 cuboctahedra, edges with eight equivalent Dy(1)Th12 cuboctahedra, edges with sixteen equivalent Th(1)Dy4Th8 cuboctahedra, faces with four equivalent Dy(1)Th12 cuboctahedra, and faces with fourteen equivalent Th(1)Dy4Th8 cuboctahedra. All Th(1)-Th(1) bond lengths are 3.57 Å. All Th(1)-Dy(1) bond lengths are 3.57 Å. Dy(1) is bonded to twelve equivalent Th(1) atoms to form DyTh12 cuboctahedra that share corners with twelve equivalent Dy(1)Th12 cuboctahedra, edges with twenty-four equivalent Th(1)Dy4Th8 cuboctahedra, faces with six equivalent Dy(1)Th12 cuboctahedra, and faces with twelve equivalent Th(1)Dy4Th8 cuboctahedra.