SrC6H2SO4 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. The Sr(1)-O(1) bond length is 2.51 Å. There is one shorter (2.60 Å) and one longer (2.73 Å) Sr(1)-O(2) bond length. There is one shorter (2.61 Å) and one longer (2.77 Å) Sr(1)-O(3) bond length. There is one shorter (2.45 Å) and one longer (2.74 Å) Sr(1)-O(4) bond length. There are six inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(2), one O(3), and one O(4) atom. The C(1)-C(2) bond length is 1.48 Å. The C(1)-O(3) bond length is 1.25 Å. The C(1)-O(4) bond length is 1.25 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 1.36 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) and one H(1) atom. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(5) and one H(2) atom. The C(4)-C(5) bond length is 1.36 Å. The C(4)-H(2) bond length is 0.93 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 1.49 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(1), and one O(2) atom. The C(6)-O(1) bond length is 1.25 Å. The C(6)-O(2) bond length is 1.25 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) 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 four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Sr(1) and one C(6) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one C(6) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to two equivalent Sr(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one C(1) atom. Linkers: 4 [O]C(=O)c1ccc(C([O])=O)s1. Metal clusters: 4 [Sr]. The MOF has largest included sphere 5.90 A, density 1.44 g/cm3, surface area 2992.67 m2/g, accessible volume 0.32 cm3/g