Cu(C2O3)2(C5NH6)2 is Indium-derived structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of two methyliminodiethylene molecules and one Cu(C2O3)2 cluster. In the Cu(C2O3)2 cluster, Cu(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(3) atoms. Both Cu(1)-O(1) bond lengths are 1.98 Å. Both Cu(1)-O(3) bond lengths are 1.96 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(2) bond length is 1.25 Å. In the second C site, C(6) is bonded in a distorted single-bond geometry to one O(3) atom. The C(6)-O(3) bond length is 1.29 Å. There are three inequivalent O sites. In the first O site, O(3) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(6) atom. In the second O site, O(1) is bonded in a water-like geometry to one Cu(1) and one C(1) atom. In the third O site, O(2) is bonded in a single-bond geometry to one C(1) atom. Linkers: 2 [O]C(=O)CN1[CH]C=C([O])C=C1. Metal clusters: 1 [O][Cu]([O])(O[C]=O)O[C]=O. The MOF has largest included sphere 1.65 A, density 1.80 g/cm3, surface area 4112.35 m2/g, accessible volume 0.12 cm3/g