EuC6H4SO6CH crystallizes in the tetragonal P-42_1c space group. The structure consists of eight 02329_fluka molecules inside a EuC6H4SO6 framework. In the EuC6H4SO6 framework, Eu(1) is bonded to one O(1), one O(2), one O(4), one O(5), and three equivalent O(6) atoms to form distorted edge-sharing EuO7 pentagonal bipyramids. The Eu(1)-O(1) bond length is 2.40 Å. The Eu(1)-O(2) bond length is 2.40 Å. The Eu(1)-O(4) bond length is 2.38 Å. The Eu(1)-O(5) bond length is 2.37 Å. There are two shorter (2.41 Å) and one longer (2.44 Å) Eu(1)-O(6) bond length. There are six inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(7), and one S(1) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(7) 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(3), and one H(1) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-H(1) bond length is 0.93 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(5) atom. The C(3)-C(4) bond length is 1.50 Å. The C(3)-C(5) bond length is 1.38 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(4), and one O(5) atom. The C(4)-O(4) bond length is 1.24 Å. The C(4)-O(5) bond length is 1.27 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(5)-H(2) bond length is 0.93 Å. In the sixth C site, C(7) is bonded in a distorted single-bond geometry to one C(1) and one H(4) atom. The C(7)-H(4) bond length is 0.93 Å. There are four 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(5) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one O(6) atom. The H(5)-O(6) bond length is 0.94 Å. S(1) is bonded in a distorted trigonal non-coplanar geometry to one C(1), one O(1), one O(2), and one O(3) atom. The S(1)-O(1) bond length is 1.45 Å. The S(1)-O(2) bond length is 1.46 Å. The S(1)-O(3) bond length is 1.45 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one S(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one S(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one S(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Eu(1) and one C(4) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Eu(1) and one C(4) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to three equivalent Eu(1) and one H(5) atom. Linkers: 8 [O]C(=O)c1cccc(S([O])([O])[O])c1. Metal clusters: 8 [Eu]. The MOF has largest included sphere 4.70 A, density 1.94 g/cm3, surface area 2624.74 m2/g, accessible volume 0.23 cm3/g