AlC4H8O2Br3 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four AlC4H8O2Br3 clusters. Al(1) is bonded in a trigonal bipyramidal geometry to two equivalent O(1), one Br(1), and two equivalent Br(2) atoms. Both Al(1)-O(1) bond lengths are 2.07 Å. The Al(1)-Br(1) bond length is 2.31 Å. Both Al(1)-Br(2) bond lengths are 2.34 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal non-coplanar geometry to one H(1), one H(2), and one O(1) atom. The C(1)-H(1) bond length is 1.10 Å. The C(1)-H(2) bond length is 1.10 Å. The C(1)-O(1) bond length is 1.46 Å. In the second C site, C(2) is bonded in a distorted trigonal non-coplanar geometry to one H(3), one H(4), and one O(1) atom. The C(2)-H(3) bond length is 1.10 Å. The C(2)-H(4) bond length is 1.09 Å. The C(2)-O(1) bond length is 1.47 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(2) atom. O(1) is bonded in a distorted trigonal planar geometry to one Al(1), one C(1), and one C(2) atom. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a single-bond geometry to one Al(1) atom. In the second Br site, Br(2) is bonded in a single-bond geometry to one Al(1) atom. Linkers: 2 C1COCCO1. Metal clusters: 2 Br[Al](Br)Br. The MOF has largest included sphere 1.59 A, density 2.58 g/cm3, surface area 2935.54 m2/g, accessible volume 0.07 cm3/g