La2IrSn4 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 10-coordinate geometry to two equivalent Sn(1), two equivalent Sn(3), two equivalent Sn(4), and four equivalent Sn(2) atoms. In the second La site, La(2) is bonded in a 14-coordinate geometry to four equivalent Ir(1), two equivalent Sn(2), two equivalent Sn(3), two equivalent Sn(4), and four equivalent Sn(1) atoms. Ir(1) is bonded in a 5-coordinate geometry to four equivalent La(2), one Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent La(1), four equivalent La(2), one Ir(1), and two equivalent Sn(2) atoms. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent La(2), four equivalent La(1), and two equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Ir(1) atoms. In the fourth Sn site, Sn(4) is bonded in a 4-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Ir(1) atoms.
La2IrSn4 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 10-coordinate geometry to two equivalent Sn(1), two equivalent Sn(3), two equivalent Sn(4), and four equivalent Sn(2) atoms. Both La(1)-Sn(1) bond lengths are 3.41 Å. Both La(1)-Sn(3) bond lengths are 3.32 Å. Both La(1)-Sn(4) bond lengths are 3.28 Å. All La(1)-Sn(2) bond lengths are 3.37 Å. In the second La site, La(2) is bonded in a 14-coordinate geometry to four equivalent Ir(1), two equivalent Sn(2), two equivalent Sn(3), two equivalent Sn(4), and four equivalent Sn(1) atoms. All La(2)-Ir(1) bond lengths are 3.67 Å. Both La(2)-Sn(2) bond lengths are 3.83 Å. Both La(2)-Sn(3) bond lengths are 3.60 Å. Both La(2)-Sn(4) bond lengths are 3.64 Å. All La(2)-Sn(1) bond lengths are 3.50 Å. Ir(1) is bonded in a 5-coordinate geometry to four equivalent La(2), one Sn(1), two equivalent Sn(3), and two equivalent Sn(4) atoms. The Ir(1)-Sn(1) bond length is 2.60 Å. Both Ir(1)-Sn(3) bond lengths are 2.66 Å. Both Ir(1)-Sn(4) bond lengths are 2.65 Å. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to two equivalent La(1), four equivalent La(2), one Ir(1), and two equivalent Sn(2) atoms. Both Sn(1)-Sn(2) bond lengths are 3.05 Å. In the second Sn site, Sn(2) is bonded in a 8-coordinate geometry to two equivalent La(2), four equivalent La(1), and two equivalent Sn(1) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Ir(1) atoms. In the fourth Sn site, Sn(4) is bonded in a 4-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Ir(1) atoms.