Nd(SmSb)3 crystallizes in the monoclinic Cc space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 6-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. In the second Sm site, Sm(2) is bonded in a 6-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. In the third Sm site, Sm(3) is bonded in a 6-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. Nd(1) is bonded in a 6-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent Sm(1), two equivalent Sm(2), two equivalent Sm(3), and two equivalent Nd(1) atoms to form a mixture of distorted edge, face, and corner-sharing SbNd2Sm6 hexagonal bipyramids. In the second Sb site, Sb(2) is bonded to two equivalent Sm(1), two equivalent Sm(2), two equivalent Sm(3), and two equivalent Nd(1) atoms to form a mixture of distorted edge, face, and corner-sharing SbNd2Sm6 hexagonal bipyramids. In the third Sb site, Sb(3) is bonded to two equivalent Sm(1), two equivalent Sm(2), two equivalent Sm(3), and two equivalent Nd(1) atoms to form a mixture of distorted edge, face, and corner-sharing SbNd2Sm6 hexagonal bipyramids.
Nd(SmSb)3 crystallizes in the monoclinic Cc space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 6-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. There is one shorter (3.12 Å) and one longer (3.40 Å) Sm(1)-Sb(1) bond length. There is one shorter (3.38 Å) and one longer (3.40 Å) Sm(1)-Sb(2) bond length. There is one shorter (3.13 Å) and one longer (3.14 Å) Sm(1)-Sb(3) bond length. In the second Sm site, Sm(2) is bonded in a 6-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. There is one shorter (3.13 Å) and one longer (3.39 Å) Sm(2)-Sb(1) bond length. There is one shorter (3.12 Å) and one longer (3.38 Å) Sm(2)-Sb(2) bond length. There is one shorter (3.12 Å) and one longer (3.39 Å) Sm(2)-Sb(3) bond length. In the third Sm site, Sm(3) is bonded in a 6-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. There is one shorter (3.12 Å) and one longer (3.38 Å) Sm(3)-Sb(1) bond length. There is one shorter (3.12 Å) and one longer (3.40 Å) Sm(3)-Sb(2) bond length. There is one shorter (3.13 Å) and one longer (3.38 Å) Sm(3)-Sb(3) bond length. Nd(1) is bonded in a 6-coordinate geometry to two equivalent Sb(1), two equivalent Sb(2), and two equivalent Sb(3) atoms. There is one shorter (3.15 Å) and one longer (3.41 Å) Nd(1)-Sb(1) bond length. Both Nd(1)-Sb(2) bond lengths are 3.15 Å. Both Nd(1)-Sb(3) bond lengths are 3.40 Å. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent Sm(1), two equivalent Sm(2), two equivalent Sm(3), and two equivalent Nd(1) atoms to form a mixture of distorted edge, face, and corner-sharing SbNd2Sm6 hexagonal bipyramids. In the second Sb site, Sb(2) is bonded to two equivalent Sm(1), two equivalent Sm(2), two equivalent Sm(3), and two equivalent Nd(1) atoms to form a mixture of distorted edge, face, and corner-sharing SbNd2Sm6 hexagonal bipyramids. In the third Sb site, Sb(3) is bonded to two equivalent Sm(1), two equivalent Sm(2), two equivalent Sm(3), and two equivalent Nd(1) atoms to form a mixture of distorted edge, face, and corner-sharing SbNd2Sm6 hexagonal bipyramids.