TlCHC5NH3SO5 is Indium-derived structured and crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four 02329_fluka molecules, four 7440-28-0 atoms, and four C5NH3SO5 clusters. In each C5NH3SO5 cluster, there are five inequivalent C sites. In the first C site, C(5) is bonded in a distorted trigonal planar geometry to one C(3), one C(6), and one N(1) atom. The C(5)-C(3) bond length is 1.39 Å. The C(5)-C(6) bond length is 1.39 Å. The C(5)-N(1) bond length is 1.46 Å. In the second C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(4) atom. The C(6)-H(4) bond length is 1.09 Å. In the third 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 1.40 Å. The C(1)-C(3) bond length is 1.39 Å. The C(1)-S(1) bond length is 1.79 Å. In the fourth C site, C(2) is bonded in a distorted single-bond geometry to one C(1) and one H(1) atom. The C(2)-H(1) bond length is 1.09 Å. In the fifth 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)-H(2) bond length is 1.08 Å. N(1) is bonded in a trigonal planar geometry to one C(5), one O(4), and one O(5) atom. The N(1)-O(4) bond length is 1.24 Å. The N(1)-O(5) bond length is 1.24 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(4) 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(2), and one O(3) atom. The S(1)-O(1) bond length is 1.46 Å. The S(1)-O(2) bond length is 1.47 Å. The S(1)-O(3) bond length is 1.49 Å. There are five inequivalent O sites. In the first O site, O(4) is bonded in a single-bond geometry to one N(1) atom. In the second O site, O(5) is bonded in a single-bond geometry to one N(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(1) is bonded in a single-bond geometry to one S(1) atom. In the fifth O site, O(2) is bonded in a single-bond geometry to one S(1) atom. Linkers: 4 [O]S([O])([O])c1cccc([N+](=O)[O-])c1. Metal clusters: 4 [Tl]. The MOF has largest included sphere 1.68 A, density 3.02 g/cm3, surface area 2335.80 m2/g, accessible volume 0.05 cm3/g