MnC6H2O4Cl crystallizes in the cubic Fm-3m space group. Mn(1) is bonded in a distorted trigonal bipyramidal geometry to four equivalent O(1) and one Cl(1) atom. All Mn(1)-O(1) bond lengths are 2.10 Å. The Mn(1)-Cl(1) bond length is 2.36 Å. There are three inequivalent C sites. In the first C site, C(3) is bonded in a distorted single-bond geometry to two equivalent C(1) and one H(1) atom. Both C(3)-C(1) bond lengths are 1.37 Å. The C(3)-H(1) bond length is 0.96 Å. In the second C site, C(2) is bonded in a bent 120 degrees geometry to one C(1) and two equivalent O(1) atoms. The C(2)-C(1) bond length is 1.52 Å. Both C(2)-O(1) bond lengths are 1.23 Å. In the third C site, C(1) is bonded in a trigonal planar geometry to one C(2) and two equivalent C(3) atoms. H(1) is bonded in a single-bond geometry to one C(3) atom. O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(2) atom. Cl(1) is bonded in a single-bond geometry to one Mn(1) atom. Linkers: 32 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 24 Cl[Mn]1234O[C]O[Mn]1(Cl)(O[C]O2)(O[C]O3)O[C]O4. RCSR code: tbo. The MOF has largest included sphere 11.39 A, density 0.95 g/cm3, surface area 3582.59 m2/g, accessible volume 0.72 cm3/g