FeC13H5O4(CH)2 crystallizes in the trigonal R-3m space group. The structure consists of thirty-six 02329_fluka molecules inside a FeC13H5O4 framework. In the FeC13H5O4 framework, Fe(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Fe(1)-O(1) bond lengths are 2.05 Å. Both Fe(1)-O(2) bond lengths are 2.06 Å. There are nine inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.49 Å. The C(1)-O(1) bond length is 1.24 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(7) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-C(7) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(8), and one H(1) atom. The C(3)-C(8) bond length is 1.40 Å. The C(3)-H(1) bond length is 0.95 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(4), one C(5), and one C(9) atom. The C(4)-C(4) bond length is 1.45 Å. The C(4)-C(5) bond length is 1.39 Å. The C(4)-C(9) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4) and one H(2) atom. The C(5)-H(2) bond length is 0.95 Å. In the sixth C site, C(4) is bonded in a trigonal planar geometry to one C(4), one C(5), and one C(9) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-C(9) bond length is 1.40 Å. In the seventh C site, C(8) is bonded in a trigonal planar geometry to one C(9) and two equivalent C(3) atoms. The C(8)-C(9) bond length is 1.50 Å. In the eighth C site, C(9) is bonded in a trigonal planar geometry to one C(8) and two equivalent C(4) atoms. In the ninth C site, C(7) is bonded in a distorted single-bond geometry to two equivalent C(2) and one H(4) atom. The C(7)-H(4) bond length is 0.95 Å. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(5) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(7) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Fe(1) and one C(1) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to one Fe(1) and one C(1) atom. Linkers: 3 [O]C(=O)c1cc(C([O])=O)cc(-c2c3ccccc3c(-c3cc(C([O])=O)cc(C([O])=O)c3)c3ccccc23)c1. Metal clusters: 3 [C]1O[Fe]23O[C]O[Fe](O1)(O[C]O2)O[C]O3. RCSR code: nbo. The MOF has largest included sphere 10.11 A, density 0.87 g/cm3, surface area 4102.70 m2/g, accessible volume 0.64 cm3/g