ZnC8H3SO7 crystallizes in the monoclinic P2_1/c space group. Zn(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. The Zn(1)-O(1) bond length is 2.01 Å. The Zn(1)-O(2) bond length is 2.10 Å. The Zn(1)-O(3) bond length is 2.22 Å. The Zn(1)-O(4) bond length is 1.96 Å. The Zn(1)-O(5) bond length is 1.96 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(3), and one S(1) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(3) bond length is 1.38 Å. The C(1)-S(1) bond length is 1.77 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(4), and one H(1) atom. The C(2)-C(4) bond length is 1.39 Å. The C(2)-H(1) bond length is 0.93 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(2) atom. The C(3)-C(5) bond length is 1.39 Å. The C(3)-H(2) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(4)-C(6) bond length is 1.39 Å. The C(4)-C(7) bond length is 1.50 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(3), one C(6), and one C(8) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-C(8) bond length is 1.50 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(4), one C(5), and one H(3) atom. The C(6)-H(3) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a bent 120 degrees geometry to one C(4), one O(2), and one O(3) atom. The C(7)-O(2) bond length is 1.25 Å. The C(7)-O(3) bond length is 1.24 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(4), and one O(5) atom. The C(8)-O(4) bond length is 1.26 Å. The C(8)-O(5) bond length is 1.25 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(6) atom. S(1) is bonded in a distorted trigonal non-coplanar geometry to one C(1), one O(1), one O(6), and one O(7) atom. The S(1)-O(1) bond length is 1.47 Å. The S(1)-O(6) bond length is 1.43 Å. The S(1)-O(7) bond length is 1.43 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one S(1) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Zn(1) and one C(7) atom. In the third O site, O(3) is bonded in an L-shaped geometry to one Zn(1) and one C(7) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one C(8) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one S(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one S(1) atom. Linkers: 2 [O]C(=O)c1cc(C([O])=O)cc(S([O])([O])[O])c1 ,2 [O]C(=O)c1cc([S]=O)cc(C([O])=O)c1. Metal clusters: 1 [O][S@](=O)O[Zn]12(O[C]O1)O[C]O[Zn]1(O[S@]([O])=O)(O[C]O1)O[C]O2 ,1 [O][S@@](=O)O[Zn]12(O[C]O1)O[C]O[Zn]1(O[S@@]([O])=O)(O[C]O1)O[C]O2. RCSR code: rtl. The MOF has largest included sphere 5.03 A, density 1.22 g/cm3, surface area 3712.17 m2/g, accessible volume 0.52 cm3/g