Eu(CO2)3(CH)3 is Indium-derived structured and crystallizes in the orthorhombic Pnnm space group. The structure is zero-dimensional and consists of twelve 02329_fluka molecules and four Eu(CO2)3 clusters. In each Eu(CO2)3 cluster, Eu(1) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), and two equivalent O(2) atoms. The Eu(1)-O(3) bond length is 2.35 Å. Both Eu(1)-O(1) bond lengths are 2.53 Å. Both Eu(1)-O(2) bond lengths are 2.47 Å. There are two inequivalent C sites. In the first C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(4)-O(3) bond length is 1.29 Å. The C(4)-O(4) bond length is 1.28 Å. In the second 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 1.27 Å. The C(1)-O(2) bond length is 1.27 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Eu(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Eu(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Eu(1) and one C(4) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(4) atom. Linkers: 3 [O]C(=O)[C@H]1[C@H](C([O])=O)[C@@H](C([O])=O)[C@H](C([O])=O)[C@@H](C([O])=O)[C@@H]1C([O])=O. Metal clusters: 4 O=[C]O[Eu]12(O[C]O1)O[C]O2. RCSR code: rtl. The MOF has largest included sphere 4.76 A, density 1.66 g/cm3, surface area 2758.64 m2/g, accessible volume 0.32 cm3/g