La3(AgSn)4 crystallizes in the orthorhombic Immm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to six equivalent Ag(1), two equivalent Sn(1), and four equivalent Sn(2) atoms. In the second La site, La(2) is bonded to eight equivalent Ag(1), two equivalent Sn(1), and four equivalent Sn(2) atoms to form distorted face-sharing LaAg8Sn6 octahedra. Ag(1) is bonded in a 10-coordinate geometry to two equivalent La(2), three equivalent La(1), one Ag(1), one Sn(2), and three equivalent Sn(1) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to one La(2), two equivalent La(1), and six equivalent Ag(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to two equivalent La(2), four equivalent La(1), two equivalent Ag(1), and one Sn(2) atom.
La3(AgSn)4 crystallizes in the orthorhombic Immm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 12-coordinate geometry to six equivalent Ag(1), two equivalent Sn(1), and four equivalent Sn(2) atoms. There are four shorter (3.38 Å) and two longer (3.48 Å) La(1)-Ag(1) bond lengths. Both La(1)-Sn(1) bond lengths are 3.40 Å. All La(1)-Sn(2) bond lengths are 3.47 Å. In the second La site, La(2) is bonded to eight equivalent Ag(1), two equivalent Sn(1), and four equivalent Sn(2) atoms to form distorted face-sharing LaAg8Sn6 octahedra. All La(2)-Ag(1) bond lengths are 3.86 Å. Both La(2)-Sn(1) bond lengths are 3.42 Å. All La(2)-Sn(2) bond lengths are 3.32 Å. Ag(1) is bonded in a 10-coordinate geometry to two equivalent La(2), three equivalent La(1), one Ag(1), one Sn(2), and three equivalent Sn(1) atoms. The Ag(1)-Ag(1) bond length is 2.88 Å. The Ag(1)-Sn(2) bond length is 2.81 Å. There are two shorter (2.89 Å) and one longer (2.94 Å) Ag(1)-Sn(1) bond length. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to one La(2), two equivalent La(1), and six equivalent Ag(1) atoms. In the second Sn site, Sn(2) is bonded in a 9-coordinate geometry to two equivalent La(2), four equivalent La(1), two equivalent Ag(1), and one Sn(2) atom. The Sn(2)-Sn(2) bond length is 2.88 Å.