Na2Nd4NOCl9 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(7), and one Cl(8) atom. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one Cl(2), one Cl(3), one Cl(4), one Cl(6), one Cl(7), and one Cl(8) atom. There are four inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 8-coordinate geometry to one N(1), one O(1), one Cl(2), one Cl(3), one Cl(4), one Cl(7), one Cl(8), and one Cl(9) atom. In the second Nd site, Nd(2) is bonded in a 2-coordinate geometry to one N(1), one O(1), one Cl(1), one Cl(2), one Cl(3), one Cl(5), one Cl(6), one Cl(8), and one Cl(9) atom. In the third Nd site, Nd(3) is bonded in a 2-coordinate geometry to one N(1), one O(1), one Cl(1), one Cl(2), one Cl(3), one Cl(5), one Cl(6), one Cl(7), and one Cl(9) atom. In the fourth Nd site, Nd(4) is bonded in a 8-coordinate geometry to one N(1), one O(1), one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(5), and one Cl(6) atom. N(1) is bonded to one Nd(1), one Nd(2), one Nd(3), and one Nd(4) atom to form NNd4 tetrahedra that share edges with two equivalent O(1)Nd4 tetrahedra. O(1) is bonded to one Nd(1), one Nd(2), one Nd(3), and one Nd(4) atom to form ONd4 tetrahedra that share edges with two equivalent N(1)Nd4 tetrahedra. There are nine inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted T-shaped geometry to one Nd(2), one Nd(3), and one Nd(4) atom. In the second Cl site, Cl(2) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Nd(1), one Nd(2), one Nd(3), and one Nd(4) atom. In the third Cl site, Cl(3) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Nd(1), one Nd(2), one Nd(3), and one Nd(4) atom. In the fourth Cl site, Cl(4) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(2), one Nd(1), and one Nd(4) atom. In the fifth Cl site, Cl(5) is bonded in a distorted see-saw-like geometry to one Na(1), one Nd(2), one Nd(3), and one Nd(4) atom. In the sixth Cl site, Cl(6) is bonded in a distorted see-saw-like geometry to one Na(2), one Nd(2), one Nd(3), and one Nd(4) atom. In the seventh Cl site, Cl(7) is bonded in a see-saw-like geometry to one Na(1), one Na(2), one Nd(1), and one Nd(3) atom. In the eighth Cl site, Cl(8) is bonded in a see-saw-like geometry to one Na(1), one Na(2), one Nd(1), and one Nd(2) atom. In the ninth Cl site, Cl(9) is bonded in a distorted T-shaped geometry to one Nd(1), one Nd(2), and one Nd(3) atom.
Na2Nd4NOCl9 crystallizes in the monoclinic P2_1 space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 6-coordinate geometry to one Cl(2), one Cl(3), one Cl(4), one Cl(5), one Cl(7), and one Cl(8) atom. The Na(1)-Cl(2) bond length is 2.87 Å. The Na(1)-Cl(3) bond length is 2.81 Å. The Na(1)-Cl(4) bond length is 2.95 Å. The Na(1)-Cl(5) bond length is 2.96 Å. The Na(1)-Cl(7) bond length is 2.80 Å. The Na(1)-Cl(8) bond length is 3.08 Å. In the second Na site, Na(2) is bonded in a 6-coordinate geometry to one Cl(2), one Cl(3), one Cl(4), one Cl(6), one Cl(7), and one Cl(8) atom. The Na(2)-Cl(2) bond length is 2.82 Å. The Na(2)-Cl(3) bond length is 2.87 Å. The Na(2)-Cl(4) bond length is 2.92 Å. The Na(2)-Cl(6) bond length is 2.94 Å. The Na(2)-Cl(7) bond length is 3.06 Å. The Na(2)-Cl(8) bond length is 2.82 Å. There are four inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 8-coordinate geometry to one N(1), one O(1), one Cl(2), one Cl(3), one Cl(4), one Cl(7), one Cl(8), and one Cl(9) atom. The Nd(1)-N(1) bond length is 2.31 Å. The Nd(1)-O(1) bond length is 2.36 Å. The Nd(1)-Cl(2) bond length is 3.17 Å. The Nd(1)-Cl(3) bond length is 3.18 Å. The Nd(1)-Cl(4) bond length is 2.91 Å. The Nd(1)-Cl(7) bond length is 2.92 Å. The Nd(1)-Cl(8) bond length is 2.91 Å. The Nd(1)-Cl(9) bond length is 2.82 Å. In the second Nd site, Nd(2) is bonded in a 2-coordinate geometry to one N(1), one O(1), one Cl(1), one Cl(2), one Cl(3), one Cl(5), one Cl(6), one Cl(8), and one Cl(9) atom. The Nd(2)-N(1) bond length is 2.34 Å. The Nd(2)-O(1) bond length is 2.31 Å. The Nd(2)-Cl(1) bond length is 2.96 Å. The Nd(2)-Cl(2) bond length is 3.34 Å. The Nd(2)-Cl(3) bond length is 3.37 Å. The Nd(2)-Cl(5) bond length is 2.95 Å. The Nd(2)-Cl(6) bond length is 3.13 Å. The Nd(2)-Cl(8) bond length is 2.95 Å. The Nd(2)-Cl(9) bond length is 2.96 Å. In the third Nd site, Nd(3) is bonded in a 2-coordinate geometry to one N(1), one O(1), one Cl(1), one Cl(2), one Cl(3), one Cl(5), one Cl(6), one Cl(7), and one Cl(9) atom. The Nd(3)-N(1) bond length is 2.27 Å. The Nd(3)-O(1) bond length is 2.39 Å. The Nd(3)-Cl(1) bond length is 3.03 Å. The Nd(3)-Cl(2) bond length is 3.37 Å. The Nd(3)-Cl(3) bond length is 3.35 Å. The Nd(3)-Cl(5) bond length is 3.13 Å. The Nd(3)-Cl(6) bond length is 2.91 Å. The Nd(3)-Cl(7) bond length is 2.91 Å. The Nd(3)-Cl(9) bond length is 3.03 Å. In the fourth Nd site, Nd(4) is bonded in a 8-coordinate geometry to one N(1), one O(1), one Cl(1), one Cl(2), one Cl(3), one Cl(4), one Cl(5), and one Cl(6) atom. The Nd(4)-N(1) bond length is 2.32 Å. The Nd(4)-O(1) bond length is 2.37 Å. The Nd(4)-Cl(1) bond length is 2.84 Å. The Nd(4)-Cl(2) bond length is 3.09 Å. The Nd(4)-Cl(3) bond length is 3.09 Å. The Nd(4)-Cl(4) bond length is 2.92 Å. The Nd(4)-Cl(5) bond length is 2.90 Å. The Nd(4)-Cl(6) bond length is 2.89 Å. N(1) is bonded to one Nd(1), one Nd(2), one Nd(3), and one Nd(4) atom to form NNd4 tetrahedra that share edges with two equivalent O(1)Nd4 tetrahedra. O(1) is bonded to one Nd(1), one Nd(2), one Nd(3), and one Nd(4) atom to form ONd4 tetrahedra that share edges with two equivalent N(1)Nd4 tetrahedra. There are nine inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted T-shaped geometry to one Nd(2), one Nd(3), and one Nd(4) atom. In the second Cl site, Cl(2) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Nd(1), one Nd(2), one Nd(3), and one Nd(4) atom. In the third Cl site, Cl(3) is bonded in a 6-coordinate geometry to one Na(1), one Na(2), one Nd(1), one Nd(2), one Nd(3), and one Nd(4) atom. In the fourth Cl site, Cl(4) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(2), one Nd(1), and one Nd(4) atom. In the fifth Cl site, Cl(5) is bonded in a distorted see-saw-like geometry to one Na(1), one Nd(2), one Nd(3), and one Nd(4) atom. In the sixth Cl site, Cl(6) is bonded in a distorted see-saw-like geometry to one Na(2), one Nd(2), one Nd(3), and one Nd(4) atom. In the seventh Cl site, Cl(7) is bonded in a see-saw-like geometry to one Na(1), one Na(2), one Nd(1), and one Nd(3) atom. In the eighth Cl site, Cl(8) is bonded in a see-saw-like geometry to one Na(1), one Na(2), one Nd(1), and one Nd(2) atom. In the ninth Cl site, Cl(9) is bonded in a distorted T-shaped geometry to one Nd(1), one Nd(2), and one Nd(3) atom.