SmC7H4SO7CH3 crystallizes in the monoclinic P2_1/c space group. The structure consists of four 02329_fluka molecules inside a SmC7H4SO7 framework. In the SmC7H4SO7 framework, Sm(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(7), and two equivalent O(6) atoms. The Sm(1)-O(1) bond length is 2.43 Å. The Sm(1)-O(2) bond length is 2.40 Å. The Sm(1)-O(3) bond length is 2.30 Å. The Sm(1)-O(4) bond length is 2.37 Å. The Sm(1)-O(5) bond length is 2.52 Å. The Sm(1)-O(7) bond length is 2.44 Å. There is one shorter (2.43 Å) and one longer (2.53 Å) Sm(1)-O(6) bond length. There are seven inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.47 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one S(1) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-S(1) bond length is 1.72 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(3) atom. The C(3)-C(4) bond length is 1.41 Å. The C(3)-H(3) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(4) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(4) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one S(1) atom. The C(5)-C(6) bond length is 1.48 Å. The C(5)-S(1) bond length is 1.72 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(6)-O(3) bond length is 1.28 Å. The C(6)-O(4) bond length is 1.27 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(7)-O(5) bond length is 1.28 Å. The C(7)-O(6) bond length is 1.29 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(7) atom. The H(1)-O(7) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(7) atom. The H(2)-O(7) bond length is 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. S(1) is bonded in an L-shaped geometry to one C(2) and one C(5) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sm(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Sm(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Sm(1) and one C(6) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Sm(1) and one C(6) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Sm(1) and one C(7) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Sm(1) and one C(7) atom. In the seventh O site, O(7) is bonded in a distorted water-like geometry to one Sm(1), one H(1), and one H(2) atom. Linkers: 4 [O]C(=O)c1ccc(C([O])=O)s1. Metal clusters: 4 [Sm]. The MOF has largest included sphere 2.73 A, density 2.38 g/cm3, surface area 3022.58 m2/g, accessible volume 0.10 cm3/g