InH8(C2O)8 is alpha Selenium structured and crystallizes in the hexagonal P6_222 space group. The structure is zero-dimensional and consists of three InH8(C2O)8 clusters. In(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. All In(1)-O(1) bond lengths are 2.33 Å. All In(1)-O(2) bond lengths are 2.31 Å. There are four inequivalent C sites. In the first 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(1) bond length is 1.41 Å. The C(2)-C(3) bond length is 1.41 Å. The C(2)-C(4) bond length is 1.48 Å. In the second C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(2) atom. The C(3)-H(2) bond length is 1.09 Å. In the third C site, C(1) is bonded in a distorted single-bond geometry to one C(2) and one H(1) atom. The C(1)-H(1) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(4)-O(1) bond length is 1.28 Å. The C(4)-O(2) bond length is 1.28 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one In(1) and one C(4) atom. In the second O site, O(2) is bonded in a distorted L-shaped geometry to one In(1) and one C(4) atom. Linkers: 6 [O]C(=O)c1ccc(C([O])=O)cc1. Metal clusters: 3 O=[C]O[In](O[C]=O)O[C]=O.[O][C]=O. RCSR code: qtz. The MOF has largest included sphere 6.54 A, density 0.97 g/cm3, surface area 3965.86 m2/g, accessible volume 0.61 cm3/g