La4Mn3Sb8 crystallizes in the tetragonal P-4m2 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and four equivalent Sb(4) atoms. In the second La site, La(2) is bonded in a 10-coordinate geometry to two equivalent Mn(2), two equivalent Sb(1), two equivalent Sb(2), and four equivalent Sb(3) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1,3) is bonded to four equivalent Sb(4) atoms to form a mixture of edge and corner-sharing MnSb4 tetrahedra. In the second Mn site, Mn(2) is bonded to four equivalent La(2) and four equivalent Sb(3) atoms to form distorted edge-sharing MnLa4Sb4 tetrahedra. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to two equivalent La(1), two equivalent La(2), and four equivalent Sb(2) atoms. In the second Sb site, Sb(2) is bonded in a 8-coordinate geometry to two equivalent La(1), two equivalent La(2), and four equivalent Sb(1) atoms. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to four equivalent La(2) and two equivalent Mn(2) atoms. In the fourth Sb site, Sb(4) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent Mn(1,3) atoms.
La4Mn3Sb8 crystallizes in the tetragonal P-4m2 space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and four equivalent Sb(4) atoms. Both La(1)-Sb(1) bond lengths are 3.42 Å. Both La(1)-Sb(2) bond lengths are 3.43 Å. All La(1)-Sb(4) bond lengths are 3.34 Å. In the second La site, La(2) is bonded in a 10-coordinate geometry to two equivalent Mn(2), two equivalent Sb(1), two equivalent Sb(2), and four equivalent Sb(3) atoms. Both La(2)-Mn(2) bond lengths are 3.35 Å. Both La(2)-Sb(1) bond lengths are 3.40 Å. Both La(2)-Sb(2) bond lengths are 3.39 Å. All La(2)-Sb(3) bond lengths are 3.31 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1,3) is bonded to four equivalent Sb(4) atoms to form a mixture of edge and corner-sharing MnSb4 tetrahedra. All Mn(1,3)-Sb(4) bond lengths are 2.80 Å. In the second Mn site, Mn(2) is bonded to four equivalent La(2) and four equivalent Sb(3) atoms to form distorted edge-sharing MnLa4Sb4 tetrahedra. All Mn(2)-Sb(3) bond lengths are 2.63 Å. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 8-coordinate geometry to two equivalent La(1), two equivalent La(2), and four equivalent Sb(2) atoms. All Sb(1)-Sb(2) bond lengths are 3.13 Å. In the second Sb site, Sb(2) is bonded in a 8-coordinate geometry to two equivalent La(1), two equivalent La(2), and four equivalent Sb(1) atoms. In the third Sb site, Sb(3) is bonded in a 6-coordinate geometry to four equivalent La(2) and two equivalent Mn(2) atoms. In the fourth Sb site, Sb(4) is bonded in a 8-coordinate geometry to four equivalent La(1) and four equivalent Mn(1,3) atoms.