La2Zn5Sn crystallizes in the orthorhombic Cmcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 15-coordinate geometry to one Zn(3), six equivalent Zn(1), six equivalent Zn(2), and two equivalent Sn(1) atoms. In the second La site, La(2) is bonded in a 14-coordinate geometry to two equivalent Zn(1), four equivalent Zn(2), four equivalent Zn(3), and four equivalent Sn(1) atoms. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 10-coordinate geometry to one La(2), three equivalent La(1), one Zn(1), two equivalent Zn(3), and three equivalent Zn(2) atoms. In the second Zn site, Zn(2) is bonded in a 10-coordinate geometry to two equivalent La(2), three equivalent La(1), one Zn(3), three equivalent Zn(1), and one Sn(1) atom. In the third Zn site, Zn(3) is bonded in a 1-coordinate geometry to one La(1), four equivalent La(2), two equivalent Zn(2), four equivalent Zn(1), and one Sn(1) atom. Sn(1) is bonded in a 9-coordinate geometry to two equivalent La(1), four equivalent La(2), one Zn(3), and two equivalent Zn(2) atoms.
La2Zn5Sn crystallizes in the orthorhombic Cmcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 15-coordinate geometry to one Zn(3), six equivalent Zn(1), six equivalent Zn(2), and two equivalent Sn(1) atoms. The La(1)-Zn(3) bond length is 3.16 Å. There are four shorter (3.16 Å) and two longer (3.30 Å) La(1)-Zn(1) bond lengths. There are four shorter (3.25 Å) and two longer (3.30 Å) La(1)-Zn(2) bond lengths. Both La(1)-Sn(1) bond lengths are 3.39 Å. In the second La site, La(2) is bonded in a 14-coordinate geometry to two equivalent Zn(1), four equivalent Zn(2), four equivalent Zn(3), and four equivalent Sn(1) atoms. Both La(2)-Zn(1) bond lengths are 3.25 Å. All La(2)-Zn(2) bond lengths are 3.47 Å. All La(2)-Zn(3) bond lengths are 3.65 Å. All La(2)-Sn(1) bond lengths are 3.35 Å. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 10-coordinate geometry to one La(2), three equivalent La(1), one Zn(1), two equivalent Zn(3), and three equivalent Zn(2) atoms. The Zn(1)-Zn(1) bond length is 2.55 Å. Both Zn(1)-Zn(3) bond lengths are 2.94 Å. There are two shorter (2.58 Å) and one longer (2.79 Å) Zn(1)-Zn(2) bond length. In the second Zn site, Zn(2) is bonded in a 10-coordinate geometry to two equivalent La(2), three equivalent La(1), one Zn(3), three equivalent Zn(1), and one Sn(1) atom. The Zn(2)-Zn(3) bond length is 2.56 Å. The Zn(2)-Sn(1) bond length is 2.73 Å. In the third Zn site, Zn(3) is bonded in a 1-coordinate geometry to one La(1), four equivalent La(2), two equivalent Zn(2), four equivalent Zn(1), and one Sn(1) atom. The Zn(3)-Sn(1) bond length is 2.68 Å. Sn(1) is bonded in a 9-coordinate geometry to two equivalent La(1), four equivalent La(2), one Zn(3), and two equivalent Zn(2) atoms.