Li2C5H5S2O9CH crystallizes in the triclinic P-1 space group. The structure consists of two 02329_fluka molecules inside a Li2C5H5S2O9 framework. In the Li2C5H5S2O9 framework, there are two inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form distorted edge-sharing LiO6 octahedra. The Li(1)-O(1) bond length is 2.01 Å. The Li(1)-O(2) bond length is 2.03 Å. The Li(1)-O(4) bond length is 1.99 Å. The Li(1)-O(5) bond length is 2.28 Å. The Li(1)-O(8) bond length is 2.14 Å. The Li(1)-O(9) bond length is 2.47 Å. In the second Li site, Li(2) is bonded to one O(3), one O(4), one O(7), and one O(8) atom to form distorted edge-sharing LiO4 tetrahedra. The Li(2)-O(3) bond length is 1.90 Å. The Li(2)-O(4) bond length is 1.99 Å. The Li(2)-O(7) bond length is 1.89 Å. The Li(2)-O(8) bond length is 1.96 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one S(1) atom. The C(1)-C(2) bond length is 1.41 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-S(1) bond length is 1.76 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one O(5) atom. The C(2)-O(5) bond length is 1.36 Å. In the third C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one O(9) atom. The C(4)-C(5) bond length is 1.42 Å. The C(4)-O(9) bond length is 1.34 Å. In the fourth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one S(2) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-S(2) bond length is 1.77 Å. In the fifth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(6) atom. The C(6)-H(6) bond length is 1.09 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. The H(1)-O(2) bond length is 1.00 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(2) atom. The H(2)-O(2) bond length is 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(5) atom. The H(3)-O(5) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(2) and one O(9) atom. The H(4)-O(2) bond length is 1.59 Å. The H(4)-O(9) bond length is 1.02 Å. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(6) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted trigonal non-coplanar geometry to one C(1), one O(1), one O(3), and one O(4) atom. The S(1)-O(1) bond length is 1.47 Å. The S(1)-O(3) bond length is 1.46 Å. The S(1)-O(4) bond length is 1.47 Å. In the second S site, S(2) is bonded in a distorted trigonal non-coplanar geometry to one C(5), one O(6), one O(7), and one O(8) atom. The S(2)-O(6) bond length is 1.47 Å. The S(2)-O(7) bond length is 1.46 Å. The S(2)-O(8) bond length is 1.49 Å. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Li(1) and one S(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Li(1), one H(1), one H(2), and one H(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Li(2) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Li(1), one Li(2), and one S(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one C(2), and one H(3) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one S(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Li(2) and one S(2) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Li(1), one Li(2), and one S(2) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Li(1), one C(4), and one H(4) atom. Linkers: 2 [O]S([O])([O])c1cc(S([O])([O])[O])c(O)cc1O. Metal clusters: 4 [Li]. The MOF has largest included sphere 2.30 A, density 1.82 g/cm3, surface area 3201.31 m2/g, accessible volume 0.12 cm3/g