Nd5(SO4)12 crystallizes in the monoclinic C2/c space group. There are three inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 9-coordinate geometry to one O(11), one O(12), one O(15), one O(16), one O(19), one O(21), one O(23), and two equivalent O(17) atoms. The Nd(1)-O(11) bond length is 2.49 Å. The Nd(1)-O(12) bond length is 2.55 Å. The Nd(1)-O(15) bond length is 2.51 Å. The Nd(1)-O(16) bond length is 2.63 Å. The Nd(1)-O(19) bond length is 2.45 Å. The Nd(1)-O(21) bond length is 2.44 Å. The Nd(1)-O(23) bond length is 2.41 Å. There is one shorter (2.38 Å) and one longer (2.62 Å) Nd(1)-O(17) bond length. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. The Nd(2)-O(10) bond length is 2.54 Å. The Nd(2)-O(2) bond length is 2.33 Å. The Nd(2)-O(4) bond length is 2.33 Å. The Nd(2)-O(5) bond length is 2.49 Å. The Nd(2)-O(6) bond length is 2.54 Å. The Nd(2)-O(7) bond length is 2.45 Å. The Nd(2)-O(8) bond length is 2.53 Å. The Nd(2)-O(9) bond length is 2.55 Å. In the third Nd site, Nd(3) is bonded to two equivalent O(14), two equivalent O(16), two equivalent O(20), and two equivalent O(22) atoms to form distorted NdO8 hexagonal bipyramids that share corners with two equivalent S(5)O4 tetrahedra, corners with two equivalent S(6)O4 tetrahedra, and edges with two equivalent S(4)O4 tetrahedra. Both Nd(3)-O(14) bond lengths are 2.52 Å. Both Nd(3)-O(16) bond lengths are 2.54 Å. Both Nd(3)-O(20) bond lengths are 2.37 Å. Both Nd(3)-O(22) bond lengths are 2.39 Å. There are six inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. The S(1)-O(1) bond length is 1.40 Å. The S(1)-O(2) bond length is 1.40 Å. The S(1)-O(3) bond length is 1.49 Å. The S(1)-O(4) bond length is 1.43 Å. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. The S(2)-O(5) bond length is 1.46 Å. The S(2)-O(6) bond length is 1.46 Å. The S(2)-O(7) bond length is 1.46 Å. The S(2)-O(8) bond length is 1.47 Å. In the third S site, S(3) is bonded in a tetrahedral geometry to one O(10), one O(11), one O(12), and one O(9) atom. The S(3)-O(10) bond length is 1.47 Å. The S(3)-O(11) bond length is 1.47 Å. The S(3)-O(12) bond length is 1.48 Å. The S(3)-O(9) bond length is 1.47 Å. In the fourth S site, S(4) is bonded to one O(13), one O(14), one O(15), and one O(16) atom to form SO4 tetrahedra that share  an edgeedge with one Nd(3)O8 hexagonal bipyramid. The S(4)-O(13) bond length is 1.45 Å. The S(4)-O(14) bond length is 1.46 Å. The S(4)-O(15) bond length is 1.47 Å. The S(4)-O(16) bond length is 1.50 Å. In the fifth S site, S(5) is bonded to one O(17), one O(18), one O(19), and one O(20) atom to form SO4 tetrahedra that share  a cornercorner with one Nd(3)O8 hexagonal bipyramid. The S(5)-O(17) bond length is 1.49 Å. The S(5)-O(18) bond length is 1.43 Å. The S(5)-O(19) bond length is 1.47 Å. The S(5)-O(20) bond length is 1.46 Å. In the sixth S site, S(6) is bonded to one O(21), one O(22), one O(23), and one O(24) atom to form SO4 tetrahedra that share  a cornercorner with one Nd(3)O8 hexagonal bipyramid. The S(6)-O(21) bond length is 1.49 Å. The S(6)-O(22) bond length is 1.47 Å. The S(6)-O(23) bond length is 1.47 Å. The S(6)-O(24) bond length is 1.45 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one S(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Nd(2) and one S(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one S(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Nd(2) and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Nd(2) and one S(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Nd(2) and one S(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Nd(2) and one S(2) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Nd(2) and one S(2) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one Nd(2) and one S(3) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Nd(2) and one S(3) atom. In the eleventh O site, O(11) is bonded in a distorted water-like geometry to one Nd(1) and one S(3) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Nd(1) and one S(3) atom. In the thirteenth O site, O(13) is bonded in a single-bond geometry to one S(4) atom. In the fourteenth O site, O(14) is bonded in a distorted water-like geometry to one Nd(3) and one S(4) atom. In the fifteenth O site, O(15) is bonded in a distorted water-like geometry to one Nd(1) and one S(4) atom. In the sixteenth O site, O(16) is bonded in a distorted single-bond geometry to one Nd(1), one Nd(3), and one S(4) atom. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to two equivalent Nd(1) and one S(5) atom. In the eighteenth O site, O(18) is bonded in a single-bond geometry to one S(5) atom. In the nineteenth O site, O(19) is bonded in a distorted water-like geometry to one Nd(1) and one S(5) atom. In the twentieth O site, O(20) is bonded in a distorted bent 150 degrees geometry to one Nd(3) and one S(5) atom. In the twenty-first O site, O(21) is bonded in a 2-coordinate geometry to one Nd(1) and one S(6) atom. In the twenty-second O site, O(22) is bonded in a bent 150 degrees geometry to one Nd(3) and one S(6) atom. In the twenty-third O site, O(23) is bonded in a distorted bent 150 degrees geometry to one Nd(1) and one S(6) atom. In the twenty-fourth O site, O(24) is bonded in a single-bond geometry to one S(6) atom. Linkers: 48 [O]S([O])(=O)=O. Metal clusters: 20 [Nd]. The MOF has largest included sphere 6.17 A, density 1.84 g/cm3, surface area 2308.76 m2/g, accessible volume 0.29 cm3/g