UC8H3SO7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent U sites. In the first U site, U(1) is bonded in a 4-coordinate geometry to one O(1), one O(10), one O(2), and one O(8) atom. The U(1)-O(1) bond length is 2.35 Å. The U(1)-O(10) bond length is 2.46 Å. The U(1)-O(2) bond length is 2.39 Å. The U(1)-O(8) bond length is 2.39 Å. In the second U site, U(2) is bonded in a 4-coordinate geometry to one O(12), one O(3), one O(5), and one O(9) atom. The U(2)-O(12) bond length is 2.38 Å. The U(2)-O(3) bond length is 2.32 Å. The U(2)-O(5) bond length is 2.42 Å. The U(2)-O(9) bond length is 2.34 Å. There are sixteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(2) atom. The C(1)-C(3) bond length is 1.48 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.26 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(2)-C(5) bond length is 1.51 Å. The C(2)-O(3) bond length is 1.31 Å. The C(2)-O(4) bond length is 1.21 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(4), and one C(8) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-C(8) bond length is 1.39 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(1) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(1) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. The C(5)-C(6) bond length is 1.39 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(5), one C(7), and one H(2) atom. The C(6)-C(7) bond length is 1.40 Å. The C(6)-H(2) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(6), one C(8), and one S(1) atom. The C(7)-C(8) bond length is 1.39 Å. The C(7)-S(1) bond length is 1.76 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(3), one C(7), and one H(3) atom. The C(8)-H(3) bond length is 0.93 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(8), and one O(9) atom. The C(9)-C(11) bond length is 1.51 Å. The C(9)-O(8) bond length is 1.25 Å. The C(9)-O(9) bond length is 1.26 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(10), and one O(11) atom. The C(10)-C(13) bond length is 1.52 Å. The C(10)-O(10) bond length is 1.28 Å. The C(10)-O(11) bond length is 1.25 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(12), one C(16), and one C(9) atom. The C(11)-C(12) bond length is 1.41 Å. The C(11)-C(16) bond length is 1.38 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(11), one C(13), and one H(4) atom. The C(12)-C(13) bond length is 1.37 Å. The C(12)-H(4) bond length is 0.93 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(14) atom. The C(13)-C(14) bond length is 1.40 Å. In the fourteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(13), one C(15), and one H(5) atom. The C(14)-C(15) bond length is 1.38 Å. The C(14)-H(5) bond length is 0.93 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one C(14), one C(16), and one S(2) atom. The C(15)-C(16) bond length is 1.41 Å. The C(15)-S(2) bond length is 1.75 Å. In the sixteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(11), one C(15), and one H(6) atom. The C(16)-H(6) bond length is 0.93 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(12) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(14) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(16) 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(7), one O(5), one O(6), and one O(7) atom. The S(1)-O(5) bond length is 1.46 Å. The S(1)-O(6) bond length is 1.44 Å. The S(1)-O(7) bond length is 1.45 Å. In the second S site, S(2) is bonded in a distorted trigonal non-coplanar geometry to one C(15), one O(12), one O(13), and one O(14) atom. The S(2)-O(12) bond length is 1.46 Å. The S(2)-O(13) bond length is 1.45 Å. The S(2)-O(14) bond length is 1.44 Å. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one U(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one U(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one U(2) and one C(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one U(2) and one S(1) 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. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one U(1) and one C(9) atom. In the ninth O site, O(9) is bonded in a distorted single-bond geometry to one U(2) and one C(9) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one U(1) and one C(10) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one C(10) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one U(2) and one S(2) atom. In the thirteenth O site, O(13) is bonded in a single-bond geometry to one S(2) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one S(2) atom. Linkers: 8 [O]C(=O)c1cc(C([O])=O)cc(S([O])([O])[O])c1. Metal clusters: 2 [O][S@](=O)O[U@](O[C]O[U@]1(O[C]=O)O[C]O[U@](O[C]O[U@@](O[C]=O)(O[S@]([O])=O)O[S@@]([O])=O)(O[C]=O)O[C]O1)(O[C]=O)O[S@@]([O])=O. The MOF has largest included sphere 5.24 A, density 1.92 g/cm3, surface area 2514.90 m2/g, accessible volume 0.25 cm3/g