TmSb3 crystallizes in the hexagonal P6_3/mmc space group. Tm(1) is bonded to twelve equivalent Sb(1) atoms to form a mixture of face and corner-sharing TmSb12 cuboctahedra. Sb(1) is bonded in a 4-coordinate geometry to four equivalent Tm(1) atoms.
TmSb3 crystallizes in the hexagonal P6_3/mmc space group. Tm(1) is bonded to twelve equivalent Sb(1) atoms to form a mixture of face and corner-sharing TmSb12 cuboctahedra. There are six shorter (3.25 Å) and six longer (3.44 Å) Tm(1)-Sb(1) bond lengths. Sb(1) is bonded in a 4-coordinate geometry to four equivalent Tm(1) atoms.