Fe3C24N12O13 crystallizes in the hexagonal P6_3/mmc space group. Fe(1) is bonded to one O(2) and four equivalent O(1) atoms to form corner-sharing FeO5 square pyramids. The Fe(1)-O(2) bond length is 1.93 Å. All Fe(1)-O(1) bond lengths are 2.00 Å. There are three inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one N(1) atom. The C(1)-C(1) bond length is 1.33 Å. The C(1)-C(3) bond length is 1.46 Å. The C(1)-N(1) bond length is 1.52 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(3) and two equivalent O(1) atoms. The C(2)-C(3) bond length is 1.48 Å. Both C(2)-O(1) bond lengths are 1.29 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2) and two equivalent C(1) atoms. N(1) is bonded in a single-bond geometry to one C(1) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a trigonal planar geometry to three equivalent Fe(1) atoms. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Fe(1) and one C(2) atom. Linkers: 6 [N]c1c([N])c(C([O])=O)c([N])c([N])c1C([O])=O. 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 5.52 A, density 1.35 g/cm3, surface area 3524.09 m2/g, accessible volume 0.36 cm3/g