Mg2C16H10O17 is Indium-like structured and crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of four Mg2C16H10O17 clusters. Mg(1) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(9) atom. The Mg(1)-O(1) bond length is 2.04 Å. The Mg(1)-O(2) bond length is 2.05 Å. The Mg(1)-O(4) bond length is 2.06 Å. The Mg(1)-O(9) bond length is 2.15 Å. There are eight 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 1.50 Å. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.25 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 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one O(3) atom. The C(3)-O(3) bond length is 1.36 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(2) and one O(7) atom. The C(4)-O(7) bond length is 1.35 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(4), and one O(5) atom. The C(5)-C(6) bond length is 1.50 Å. The C(5)-O(4) bond length is 1.25 Å. The C(5)-O(5) bond length is 1.26 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one C(8) atom. The C(6)-C(7) bond length is 1.39 Å. The C(6)-C(8) bond length is 1.39 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(6) and one O(6) atom. The C(7)-O(6) bond length is 1.37 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(6) and one O(8) atom. The C(8)-O(8) bond length is 1.28 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. The H(1)-O(3) bond length is 0.82 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(6) atom. The H(2)-O(6) bond length is 0.82 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(9) atom. The H(3)-O(9) bond length is 0.87 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(7) atom. The H(4)-O(7) bond length is 0.82 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(8) atom. The H(5)-O(8) bond length is 0.82 Å. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a distorted bent 120 degrees geometry to two equivalent Mg(1) and two equivalent H(3) atoms. In the second O site, O(1) is bonded in a bent 150 degrees geometry to one Mg(1) and one C(1) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one C(1) atom. In the fourth O site, O(3) is bonded in a water-like geometry to one C(3) and one H(1) atom. In the fifth O site, O(4) is bonded in a 2-coordinate geometry to one Mg(1) and one C(5) atom. In the sixth O site, O(5) is bonded in a single-bond geometry to one C(5) atom. In the seventh O site, O(6) is bonded in a water-like geometry to one C(7) and one H(2) atom. In the eighth O site, O(7) is bonded in a water-like geometry to one C(4) and one H(4) atom. In the ninth O site, O(8) is bonded in a water-like geometry to one C(8) and one H(5) atom. Linkers: 9 [O]C(=O)c1c(O)c(O)c(C([O])=O)c(O)c1O. Metal clusters: 4 O.[C]1O[Mg]O[C]O[Mg]O1.[O][C]=O.[O][C]=O. RCSR code: dia. The MOF has largest included sphere 6.10 A, density 0.83 g/cm3, surface area 4110.25 m2/g, accessible volume 0.72 cm3/g