SmSb2 crystallizes in the orthorhombic Cmce space group. Sm(1) is bonded in a 9-coordinate geometry to four equivalent Sb(1) and five equivalent Sb(2) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to four equivalent Sm(1) and four equivalent Sb(1) atoms. In the second Sb site, Sb(2) is bonded in a 6-coordinate geometry to five equivalent Sm(1) and one Sb(2) atom.
SmSb2 crystallizes in the orthorhombic Cmce space group. Sm(1) is bonded in a 9-coordinate geometry to four equivalent Sb(1) and five equivalent Sb(2) atoms. There are two shorter (3.29 Å) and two longer (3.40 Å) Sm(1)-Sb(1) bond lengths. There are a spread of Sm(1)-Sb(2) bond distances ranging from 3.14-3.47 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to four equivalent Sm(1) and four equivalent Sb(1) atoms. There are two shorter (3.04 Å) and two longer (3.12 Å) Sb(1)-Sb(1) bond lengths. In the second Sb site, Sb(2) is bonded in a 6-coordinate geometry to five equivalent Sm(1) and one Sb(2) atom. The Sb(2)-Sb(2) bond length is 2.82 Å.