CuC2O4(CH)2C5H3 is Indium-derived structured and crystallizes in the orthorhombic Imma space group. The structure is zero-dimensional and consists of sixteen 02329_fluka molecules; four 1,2,4,5-tetramethylbenzene molecules; and four CuC2O4 clusters. In each CuC2O4 cluster, Cu(1) is bonded in a distorted L-shaped geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Cu(1)-O(1) bond lengths are 1.95 Å. Both Cu(1)-O(2) bond lengths are 1.95 Å. C(3) is bonded in a bent 120 degrees geometry to one O(1) and one O(2) atom. The C(3)-O(1) bond length is 1.28 Å. The C(3)-O(2) bond length is 1.23 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Cu(1) and one C(3) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(3) atom. Linkers: 2 [O]C(=O)/C=C/c1cc(/C=C/C([O])=O)c(/C=C/C([O])=O)cc1/C=C/C([O])=O. Metal clusters: 2 [C]1O[Cu]234O[C]O[Cu]2(O1)(O[C]O3)O[C]O4. RCSR code: lvt. The MOF has largest included sphere 7.54 A, density 0.76 g/cm3, surface area 4026.67 m2/g, accessible volume 0.99 cm3/g