Fe3O(OC3)12 is Indium-derived structured and crystallizes in the hexagonal P-62c space group. The structure is zero-dimensional and consists of six 2,6-naphthalenedicarboxylic acid molecules and two Fe3O clusters. In each Fe3O cluster, Fe(1) is bonded in a distorted single-bond geometry to one O(3) atom. The Fe(1)-O(3) bond length is 2.04 Å. O(3) is bonded in a trigonal planar geometry to three equivalent Fe(1) atoms. Linkers: 6 [O]C(=O)c1[c][c]c2[c]c(C([O])=O)[c][c]c2[c]1. Metal clusters: 2 [C]1O[Fe]23O[C]O[Fe]45(O1)O[C]O[Fe](O[C]O2)(O[C]O3)(O[C]O4)O5. RCSR code: acs. The MOF has largest included sphere 14.21 A, density 0.47 g/cm3, surface area 4136.18 m2/g, accessible volume 1.66 cm3/g