La3YSb3 crystallizes in the monoclinic C2 space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 6-coordinate geometry to one Sb(1), one Sb(2), two equivalent Sb(3), and two equivalent Sb(4) atoms. In the second La site, La(2) is bonded in a 6-coordinate geometry to one Sb(1), one Sb(2), two equivalent Sb(3), and two equivalent Sb(4) atoms. In the third La site, La(3) is bonded in a 6-coordinate geometry to one Sb(1), one Sb(2), two equivalent Sb(3), and two equivalent Sb(4) atoms. Y(1) is bonded in a 6-coordinate geometry to one Sb(1), one Sb(2), two equivalent Sb(3), and two equivalent Sb(4) atoms. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent La(1), two equivalent La(2), two equivalent La(3), and two equivalent Y(1) atoms to form a mixture of distorted corner, face, and edge-sharing SbLa6Y2 hexagonal bipyramids. In the second Sb site, Sb(2) is bonded to two equivalent La(1), two equivalent La(2), two equivalent La(3), and two equivalent Y(1) atoms to form a mixture of distorted corner, face, and edge-sharing SbLa6Y2 hexagonal bipyramids. In the third Sb site, Sb(3) is bonded in a 8-coordinate geometry to two equivalent La(1), two equivalent La(2), two equivalent La(3), and two equivalent Y(1) atoms. In the fourth Sb site, Sb(4) is bonded to two equivalent La(1), two equivalent La(2), two equivalent La(3), and two equivalent Y(1) atoms to form a mixture of distorted corner, face, and edge-sharing SbLa6Y2 hexagonal bipyramids.
La3YSb3 crystallizes in the monoclinic C2 space group. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 6-coordinate geometry to one Sb(1), one Sb(2), two equivalent Sb(3), and two equivalent Sb(4) atoms. The La(1)-Sb(1) bond length is 3.23 Å. The La(1)-Sb(2) bond length is 3.45 Å. There is one shorter (3.27 Å) and one longer (3.47 Å) La(1)-Sb(3) bond length. There is one shorter (3.24 Å) and one longer (3.41 Å) La(1)-Sb(4) bond length. In the second La site, La(2) is bonded in a 6-coordinate geometry to one Sb(1), one Sb(2), two equivalent Sb(3), and two equivalent Sb(4) atoms. The La(2)-Sb(1) bond length is 3.19 Å. The La(2)-Sb(2) bond length is 3.44 Å. There is one shorter (3.21 Å) and one longer (3.48 Å) La(2)-Sb(3) bond length. There is one shorter (3.20 Å) and one longer (3.46 Å) La(2)-Sb(4) bond length. In the third La site, La(3) is bonded in a 6-coordinate geometry to one Sb(1), one Sb(2), two equivalent Sb(3), and two equivalent Sb(4) atoms. The La(3)-Sb(1) bond length is 3.51 Å. The La(3)-Sb(2) bond length is 3.23 Å. There is one shorter (3.21 Å) and one longer (3.47 Å) La(3)-Sb(3) bond length. There is one shorter (3.20 Å) and one longer (3.48 Å) La(3)-Sb(4) bond length. Y(1) is bonded in a 6-coordinate geometry to one Sb(1), one Sb(2), two equivalent Sb(3), and two equivalent Sb(4) atoms. The Y(1)-Sb(1) bond length is 3.38 Å. The Y(1)-Sb(2) bond length is 3.17 Å. There is one shorter (3.11 Å) and one longer (3.36 Å) Y(1)-Sb(3) bond length. There is one shorter (3.15 Å) and one longer (3.47 Å) Y(1)-Sb(4) bond length. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent La(1), two equivalent La(2), two equivalent La(3), and two equivalent Y(1) atoms to form a mixture of distorted corner, face, and edge-sharing SbLa6Y2 hexagonal bipyramids. In the second Sb site, Sb(2) is bonded to two equivalent La(1), two equivalent La(2), two equivalent La(3), and two equivalent Y(1) atoms to form a mixture of distorted corner, face, and edge-sharing SbLa6Y2 hexagonal bipyramids. In the third Sb site, Sb(3) is bonded in a 8-coordinate geometry to two equivalent La(1), two equivalent La(2), two equivalent La(3), and two equivalent Y(1) atoms. In the fourth Sb site, Sb(4) is bonded to two equivalent La(1), two equivalent La(2), two equivalent La(3), and two equivalent Y(1) atoms to form a mixture of distorted corner, face, and edge-sharing SbLa6Y2 hexagonal bipyramids.