Sm2C24H9(NO6)3 crystallizes in the monoclinic C2/c space group. Sm(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Sm(1)-O(1) bond length is 2.37 Å. The Sm(1)-O(2) bond length is 2.41 Å. The Sm(1)-O(3) bond length is 2.53 Å. The Sm(1)-O(4) bond length is 2.41 Å. The Sm(1)-O(5) bond length is 2.35 Å. The Sm(1)-O(6) bond length is 2.48 Å. There are thirteen inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(2), one O(2), and one O(5) atom. The C(1)-C(2) bond length is 1.51 Å. The C(1)-O(2) bond length is 1.26 Å. The C(1)-O(5) bond length is 1.25 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(10), and one C(9) atom. The C(2)-C(10) bond length is 1.39 Å. The C(2)-C(9) bond length is 1.39 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(4), one C(5), and one C(9) atom. The C(3)-C(4) bond length is 1.51 Å. The C(3)-C(5) bond length is 1.39 Å. The C(3)-C(9) bond length is 1.39 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(6) atom. The C(4)-O(3) bond length is 1.26 Å. The C(4)-O(6) bond length is 1.26 Å. In the fifth C site, C(5) is bonded in a single-bond geometry to one C(11), one C(3), and one H(3) atom. The C(5)-C(11) bond length is 1.37 Å. The C(5)-H(3) bond length is 0.90 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(12), one C(7), and one C(8) atom. The C(6)-C(12) bond length is 1.39 Å. The C(6)-C(7) bond length is 1.51 Å. The C(6)-C(8) bond length is 1.39 Å. In the seventh C site, C(7) is bonded in a bent 120 degrees geometry to one C(6), one O(1), and one O(4) atom. The C(7)-O(1) bond length is 1.25 Å. The C(7)-O(4) bond length is 1.25 Å. In the eighth C site, C(8) is bonded in a single-bond geometry to one C(13), one C(6), and one H(4) atom. The C(8)-C(13) bond length is 1.38 Å. The C(8)-H(4) bond length is 0.84 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(2), one C(3), and one H(1) atom. The C(9)-H(1) bond length is 0.94 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(2), and one H(2) atom. The C(10)-C(11) bond length is 1.38 Å. The C(10)-H(2) bond length is 0.90 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(10), one C(5), and one N(1) atom. The C(11)-N(1) bond length is 1.48 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to two equivalent C(6) and one H(5) atom. The C(12)-H(5) bond length is 0.91 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to two equivalent C(8) and one N(2) atom. The C(13)-N(2) bond length is 1.47 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(11), one O(7), and one O(8) atom. The N(1)-O(7) bond length is 1.22 Å. The N(1)-O(8) bond length is 1.22 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(13) and two equivalent O(9) atoms. Both N(2)-O(9) bond lengths are 1.22 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(9) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(10) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(8) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(12) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Sm(1) and one C(7) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sm(1) and one C(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Sm(1) and one C(4) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Sm(1) and one C(7) atom. In the fifth O site, O(5) is bonded in a linear geometry to one Sm(1) and one C(1) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Sm(1) and one C(4) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one N(1) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one N(1) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one N(2) atom. Linkers: 6 [O]C(=O)c1cc(C([O])=O)cc([N+](=O)[O-])c1. Metal clusters: 2 [C]1O[Sm]234(O1)O[C]O[Sm]1(O[C]O1)(O[C]O2)(O[C]O3)O[C]O4. RCSR code: pcu. The MOF has largest included sphere 5.53 A, density 1.18 g/cm3, surface area 3356.15 m2/g, accessible volume 0.52 cm3/g