TmAl3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Tm(1) is bonded to twelve equivalent Al(1) atoms to form TmAl12 cuboctahedra that share corners with twelve equivalent Tm(1)Al12 cuboctahedra, edges with twenty-four equivalent Al(1)Tm4Al8 cuboctahedra, faces with six equivalent Tm(1)Al12 cuboctahedra, and faces with twelve equivalent Al(1)Tm4Al8 cuboctahedra. Al(1) is bonded to four equivalent Tm(1) and eight equivalent Al(1) atoms to form AlTm4Al8 cuboctahedra that share corners with twelve equivalent Al(1)Tm4Al8 cuboctahedra, edges with eight equivalent Tm(1)Al12 cuboctahedra, edges with sixteen equivalent Al(1)Tm4Al8 cuboctahedra, faces with four equivalent Tm(1)Al12 cuboctahedra, and faces with fourteen equivalent Al(1)Tm4Al8 cuboctahedra.
TmAl3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Tm(1) is bonded to twelve equivalent Al(1) atoms to form TmAl12 cuboctahedra that share corners with twelve equivalent Tm(1)Al12 cuboctahedra, edges with twenty-four equivalent Al(1)Tm4Al8 cuboctahedra, faces with six equivalent Tm(1)Al12 cuboctahedra, and faces with twelve equivalent Al(1)Tm4Al8 cuboctahedra. All Tm(1)-Al(1) bond lengths are 2.96 Å. Al(1) is bonded to four equivalent Tm(1) and eight equivalent Al(1) atoms to form AlTm4Al8 cuboctahedra that share corners with twelve equivalent Al(1)Tm4Al8 cuboctahedra, edges with eight equivalent Tm(1)Al12 cuboctahedra, edges with sixteen equivalent Al(1)Tm4Al8 cuboctahedra, faces with four equivalent Tm(1)Al12 cuboctahedra, and faces with fourteen equivalent Al(1)Tm4Al8 cuboctahedra. All Al(1)-Al(1) bond lengths are 2.96 Å.