CdC8H4O4Cl is Indium-like structured and crystallizes in the orthorhombic Fddd space group. The structure is zero-dimensional and consists of eight CdC8H4O4Cl clusters. Cd(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent Cl(1) atoms to form distorted edge-sharing CdCl2O4 octahedra. Both Cd(1)-O(1) bond lengths are 2.31 Å. Both Cd(1)-O(2) bond lengths are 2.37 Å. Both Cd(1)-Cl(1) bond lengths are 2.56 Å. There are four 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 C(4) atom. The C(1)-C(2) bond length is 1.49 Å. The C(1)-C(3) bond length is 1.39 Å. The C(1)-C(4) bond length is 1.40 Å. In the second C site, C(2) is bonded in a bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(2)-O(1) bond length is 1.28 Å. The C(2)-O(2) bond length is 1.25 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(1) 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(1) and one H(2) atom. The C(4)-H(2) bond length is 0.93 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. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted L-shaped geometry to one Cd(1) and one C(2) atom. In the second O site, O(1) is bonded in an L-shaped geometry to one Cd(1) and one C(2) atom. Cl(1) is bonded in an L-shaped geometry to two equivalent Cd(1) atoms. Linkers: 16 [O]C(=O)c1ccc(C([O])=O)cc1. Metal clusters: 2 Cl[Cd]12(O[C]O1)O[C]O2.Cl[Cd]12(O[C]O1)O[C]O2 ,6 Cl[Cd]12(Cl)(O[C]O1)O[C]O2.[C]1O[Cd]2(O1)O[C]O2. RCSR code: dia. The MOF has largest included sphere 5.05 A, density 1.23 g/cm3, surface area 3797.44 m2/g, accessible volume 0.50 cm3/g