RbC6H6SO7CH crystallizes in the monoclinic P2_1/c space group. The structure consists of four 02329_fluka molecules inside a RbC6H6SO7 framework. In the RbC6H6SO7 framework, Rb(1) is bonded in a 7-coordinate geometry to one O(1), one O(4), one O(7), two equivalent O(2), and two equivalent O(3) atoms. The Rb(1)-O(1) bond length is 3.23 Å. The Rb(1)-O(4) bond length is 2.87 Å. The Rb(1)-O(7) bond length is 3.02 Å. There is one shorter (2.92 Å) and one longer (3.04 Å) Rb(1)-O(2) bond length. There is one shorter (2.90 Å) and one longer (2.92 Å) Rb(1)-O(3) bond length. There are six 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(4), and one O(5) atom. The C(1)-C(2) bond length is 1.47 Å. The C(1)-O(4) bond length is 1.26 Å. The C(1)-O(5) bond length is 1.32 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(7) atom. The C(2)-C(3) bond length is 1.42 Å. The C(2)-C(7) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one O(6) atom. The C(3)-O(6) bond length is 1.34 Å. In the fourth C site, C(5) is bonded in a distorted single-bond geometry to one C(6) and one H(4) atom. The C(5)-C(6) bond length is 1.41 Å. The C(5)-H(4) bond length is 1.09 Å. In the fifth C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one S(1) atom. The C(6)-C(7) bond length is 1.39 Å. The C(6)-S(1) bond length is 1.77 Å. In the sixth C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(5) atom. The C(7)-H(5) bond length is 1.09 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(5) and one O(7) atom. The H(1)-O(5) bond length is 1.02 Å. The H(1)-O(7) bond length is 1.64 Å. In the second H site, H(2) is bonded in a distorted bent 150 degrees geometry to one O(4) and one O(6) atom. The H(2)-O(4) bond length is 1.62 Å. The H(2)-O(6) bond length is 1.01 Å. In the third H site, H(4) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one O(7) atom. The H(6)-O(7) bond length is 1.00 Å. In the sixth H site, H(7) is bonded in a single-bond geometry to one O(7) atom. The H(7)-O(7) bond length is 0.98 Å. S(1) is bonded in a distorted trigonal non-coplanar geometry to one C(6), one O(1), one O(2), and one O(3) atom. The S(1)-O(1) bond length is 1.48 Å. The S(1)-O(2) bond length is 1.47 Å. The S(1)-O(3) bond length is 1.48 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one S(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one C(1), and one H(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one C(1) and one H(1) atom. In the sixth O site, O(6) is bonded in a water-like geometry to one C(3) and one H(2) atom. In the seventh O site, O(7) is bonded in a distorted water-like geometry to one Rb(1), one H(1), one H(6), and one H(7) atom. Linkers: 4 [O]S([O])([O])c1ccc(O)c(C(=O)O)c1. Metal clusters: 4 [Rb]. The MOF has largest included sphere 1.76 A, density 2.11 g/cm3, surface area 3236.40 m2/g, accessible volume 0.08 cm3/g