La2SnSb4 crystallizes in the monoclinic P2_1/c space group. La(1) is bonded in a 9-coordinate geometry to two equivalent Sn(1), three equivalent Sb(1), and four equivalent Sb(2) atoms. Sn(1) is bonded in a 8-coordinate geometry to four equivalent La(1), two equivalent Sb(1), and two equivalent Sb(2) atoms. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 3-coordinate geometry to three equivalent La(1) and one Sn(1) atom. In the second Sb site, Sb(2) is bonded in a 4-coordinate geometry to four equivalent La(1) and one Sn(1) atom.
La2SnSb4 crystallizes in the monoclinic P2_1/c space group. La(1) is bonded in a 9-coordinate geometry to two equivalent Sn(1), three equivalent Sb(1), and four equivalent Sb(2) atoms. There is one shorter (3.47 Å) and one longer (3.94 Å) La(1)-Sn(1) bond length. There are a spread of La(1)-Sb(1) bond distances ranging from 3.19-3.46 Å. There are a spread of La(1)-Sb(2) bond distances ranging from 3.18-3.32 Å. Sn(1) is bonded in a 8-coordinate geometry to four equivalent La(1), two equivalent Sb(1), and two equivalent Sb(2) atoms. Both Sn(1)-Sb(1) bond lengths are 3.54 Å. Both Sn(1)-Sb(2) bond lengths are 3.28 Å. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 3-coordinate geometry to three equivalent La(1) and one Sn(1) atom. In the second Sb site, Sb(2) is bonded in a 4-coordinate geometry to four equivalent La(1) and one Sn(1) atom.