InH5(C2O)5(CH)2 crystallizes in the tetragonal P4/nmm space group. The structure consists of sixteen 02329_fluka molecules inside a InH5(C2O)5 framework. In the InH5(C2O)5 framework, there are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent O(3) and four equivalent O(2) atoms to form corner-sharing InO6 octahedra. The corner-sharing octahedral tilt angles are 61°. Both In(1)-O(3) bond lengths are 2.11 Å. All In(1)-O(2) bond lengths are 2.17 Å. In the second In site, In(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form corner-sharing InO6 octahedra. The corner-sharing octahedral tilt angles are 61°. Both In(2)-O(3) bond lengths are 2.06 Å. All In(2)-O(1) bond lengths are 2.14 Å. There are five 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 1.19 Å. The C(1)-O(2) bond length is 1.26 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(4) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(4) bond length is 1.41 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(1) atom. The C(3)-H(1) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(5) atom. The C(4)-C(4) bond length is 1.47 Å. The C(4)-C(5) bond length is 1.43 Å. In the fifth C site, C(5) is bonded in a single-bond geometry to one C(4) and one H(2) atom. The C(5)-H(2) bond length is 0.93 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 O(3) atom. The H(4)-O(3) bond length is 1.00 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one In(2) and one C(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one In(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one In(1), one In(2), and one H(4) atom. Linkers: 8 [O]C(=O)c1ccc(C([O])=O)c2ccccc12. Metal clusters: 8 [In]. The MOF has largest included sphere 9.50 A, density 1.34 g/cm3, surface area 3304.87 m2/g, accessible volume 0.37 cm3/g