La2Sn5 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded to two equivalent La(1), two equivalent Sn(2), two equivalent Sn(3), and six equivalent Sn(1) atoms to form a mixture of distorted edge, corner, and face-sharing LaLa2Sn10 cuboctahedra. In the second La site, La(2) is bonded in a 4-coordinate geometry to one Sn(3), one Sn(6), and two equivalent Sn(4) atoms. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to six equivalent La(1), two equivalent Sn(1), and two equivalent Sn(2) atoms. In the second Sn site, Sn(2) is bonded in a 12-coordinate geometry to two equivalent La(1), two equivalent Sn(1), two equivalent Sn(2), two equivalent Sn(4), and four equivalent Sn(3) atoms. In the third Sn site, Sn(3) is bonded in a 3-coordinate geometry to one La(2), two equivalent La(1), and four equivalent Sn(2) atoms. In the fourth Sn site, Sn(4) is bonded in a distorted bent 120 degrees geometry to two equivalent La(2) and two equivalent Sn(2) atoms. In the fifth Sn site, Sn(5) is bonded in a hexagonal planar geometry to two equivalent Sn(5) and four equivalent Sn(6) atoms. In the sixth Sn site, Sn(6) is bonded in a linear geometry to two equivalent La(2) and four equivalent Sn(5) atoms.
La2Sn5 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded to two equivalent La(1), two equivalent Sn(2), two equivalent Sn(3), and six equivalent Sn(1) atoms to form a mixture of distorted edge, corner, and face-sharing LaLa2Sn10 cuboctahedra. Both La(1)-La(1) bond lengths are 3.27 Å. Both La(1)-Sn(2) bond lengths are 3.54 Å. Both La(1)-Sn(3) bond lengths are 3.37 Å. There are four shorter (3.45 Å) and two longer (3.50 Å) La(1)-Sn(1) bond lengths. In the second La site, La(2) is bonded in a 4-coordinate geometry to one Sn(3), one Sn(6), and two equivalent Sn(4) atoms. The La(2)-Sn(3) bond length is 3.19 Å. The La(2)-Sn(6) bond length is 3.13 Å. Both La(2)-Sn(4) bond lengths are 3.28 Å. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 10-coordinate geometry to six equivalent La(1), two equivalent Sn(1), and two equivalent Sn(2) atoms. Both Sn(1)-Sn(1) bond lengths are 3.27 Å. Both Sn(1)-Sn(2) bond lengths are 3.31 Å. In the second Sn site, Sn(2) is bonded in a 12-coordinate geometry to two equivalent La(1), two equivalent Sn(1), two equivalent Sn(2), two equivalent Sn(4), and four equivalent Sn(3) atoms. Both Sn(2)-Sn(2) bond lengths are 3.27 Å. Both Sn(2)-Sn(4) bond lengths are 3.08 Å. All Sn(2)-Sn(3) bond lengths are 3.47 Å. In the third Sn site, Sn(3) is bonded in a 3-coordinate geometry to one La(2), two equivalent La(1), and four equivalent Sn(2) atoms. In the fourth Sn site, Sn(4) is bonded in a distorted bent 120 degrees geometry to two equivalent La(2) and two equivalent Sn(2) atoms. In the fifth Sn site, Sn(5) is bonded in a hexagonal planar geometry to two equivalent Sn(5) and four equivalent Sn(6) atoms. Both Sn(5)-Sn(5) bond lengths are 3.27 Å. All Sn(5)-Sn(6) bond lengths are 3.34 Å. In the sixth Sn site, Sn(6) is bonded in a linear geometry to two equivalent La(2) and four equivalent Sn(5) atoms.