In3C42H24O13 crystallizes in the trigonal P-31c space group. In(1) is bonded to one O(3), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing InO5 square pyramids. The In(1)-O(3) bond length is 2.03 Å. Both In(1)-O(1) bond lengths are 2.15 Å. Both In(1)-O(2) bond lengths are 2.15 Å. There are seven inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(4), one C(5), and one H(1) atom. The C(1)-C(4) bond length is 1.38 Å. The C(1)-C(5) bond length is 1.36 Å. The C(1)-H(1) bond length is 0.93 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(2) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-C(5) bond length is 1.37 Å. The C(2)-H(2) bond length is 0.93 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(3) atom. The C(3)-C(6) bond length is 1.34 Å. The C(3)-H(3) bond length is 0.93 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(1), one C(6), and one H(4) atom. The C(4)-C(6) bond length is 1.36 Å. The C(4)-H(4) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(1), one C(2), and one C(5) atom. The C(5)-C(5) bond length is 1.52 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(3), one C(4), and one C(7) atom. The C(6)-C(7) bond length is 1.53 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.25 Å. The C(7)-O(2) bond length is 1.25 Å. There are four 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(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. There are three inequivalent O sites. In the first O site, O(3) is bonded in a trigonal planar geometry to three equivalent In(1) atoms. In the second O site, O(1) is bonded in a distorted bent 120 degrees geometry to one In(1) and one C(7) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one In(1) and one C(7) atom. Linkers: 6 [O]C(=O)c1ccc(-c2ccc(C([O])=O)cc2)cc1. Metal clusters: 2 O=[C]O[In](O[C]=O)O[In](O[C]=O)O[C]=O.O=[C]O[In]O[C]=O. RCSR code: acs. The MOF has largest included sphere 16.15 A, density 0.41 g/cm3, surface area 3674.84 m2/g, accessible volume 2.06 cm3/g