TmDy3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Tm(1) is bonded to twelve equivalent Dy(1) atoms to form TmDy12 cuboctahedra that share corners with twelve equivalent Tm(1)Dy12 cuboctahedra, edges with twenty-four equivalent Dy(1)Dy8Tm4 cuboctahedra, faces with six equivalent Tm(1)Dy12 cuboctahedra, and faces with twelve equivalent Dy(1)Dy8Tm4 cuboctahedra. Dy(1) is bonded to four equivalent Tm(1) and eight equivalent Dy(1) atoms to form DyDy8Tm4 cuboctahedra that share corners with twelve equivalent Dy(1)Dy8Tm4 cuboctahedra, edges with eight equivalent Tm(1)Dy12 cuboctahedra, edges with sixteen equivalent Dy(1)Dy8Tm4 cuboctahedra, faces with four equivalent Tm(1)Dy12 cuboctahedra, and faces with fourteen equivalent Dy(1)Dy8Tm4 cuboctahedra.
TmDy3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Tm(1) is bonded to twelve equivalent Dy(1) atoms to form TmDy12 cuboctahedra that share corners with twelve equivalent Tm(1)Dy12 cuboctahedra, edges with twenty-four equivalent Dy(1)Dy8Tm4 cuboctahedra, faces with six equivalent Tm(1)Dy12 cuboctahedra, and faces with twelve equivalent Dy(1)Dy8Tm4 cuboctahedra. All Tm(1)-Dy(1) bond lengths are 3.53 Å. Dy(1) is bonded to four equivalent Tm(1) and eight equivalent Dy(1) atoms to form DyDy8Tm4 cuboctahedra that share corners with twelve equivalent Dy(1)Dy8Tm4 cuboctahedra, edges with eight equivalent Tm(1)Dy12 cuboctahedra, edges with sixteen equivalent Dy(1)Dy8Tm4 cuboctahedra, faces with four equivalent Tm(1)Dy12 cuboctahedra, and faces with fourteen equivalent Dy(1)Dy8Tm4 cuboctahedra. All Dy(1)-Dy(1) bond lengths are 3.53 Å.