TmTb3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Tm(1) is bonded to twelve equivalent Tb(1) atoms to form TmTb12 cuboctahedra that share corners with twelve equivalent Tm(1)Tb12 cuboctahedra, edges with twenty-four equivalent Tb(1)Tb8Tm4 cuboctahedra, faces with six equivalent Tm(1)Tb12 cuboctahedra, and faces with twelve equivalent Tb(1)Tb8Tm4 cuboctahedra. Tb(1) is bonded to four equivalent Tm(1) and eight equivalent Tb(1) atoms to form TbTb8Tm4 cuboctahedra that share corners with twelve equivalent Tb(1)Tb8Tm4 cuboctahedra, edges with eight equivalent Tm(1)Tb12 cuboctahedra, edges with sixteen equivalent Tb(1)Tb8Tm4 cuboctahedra, faces with four equivalent Tm(1)Tb12 cuboctahedra, and faces with fourteen equivalent Tb(1)Tb8Tm4 cuboctahedra.
TmTb3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Tm(1) is bonded to twelve equivalent Tb(1) atoms to form TmTb12 cuboctahedra that share corners with twelve equivalent Tm(1)Tb12 cuboctahedra, edges with twenty-four equivalent Tb(1)Tb8Tm4 cuboctahedra, faces with six equivalent Tm(1)Tb12 cuboctahedra, and faces with twelve equivalent Tb(1)Tb8Tm4 cuboctahedra. All Tm(1)-Tb(1) bond lengths are 3.55 Å. Tb(1) is bonded to four equivalent Tm(1) and eight equivalent Tb(1) atoms to form TbTb8Tm4 cuboctahedra that share corners with twelve equivalent Tb(1)Tb8Tm4 cuboctahedra, edges with eight equivalent Tm(1)Tb12 cuboctahedra, edges with sixteen equivalent Tb(1)Tb8Tm4 cuboctahedra, faces with four equivalent Tm(1)Tb12 cuboctahedra, and faces with fourteen equivalent Tb(1)Tb8Tm4 cuboctahedra. All Tb(1)-Tb(1) bond lengths are 3.55 Å.