CoZn2C15H5O11 crystallizes in the hexagonal P6_3cm space group. Co(1) is bonded in a distorted T-shaped geometry to one O(6) and two equivalent O(4) atoms. The Co(1)-O(6) bond length is 2.10 Å. Both Co(1)-O(4) bond lengths are 2.10 Å. Zn(1) is bonded to one O(1), one O(2), one O(3), and one O(6) atom to form corner-sharing ZnO4 tetrahedra. The Zn(1)-O(1) bond length is 1.97 Å. The Zn(1)-O(2) bond length is 1.93 Å. The Zn(1)-O(3) bond length is 1.94 Å. The Zn(1)-O(6) bond length is 1.97 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(2), and one O(5) atom. The C(1)-C(2) bond length is 1.55 Å. The C(1)-O(2) bond length is 1.21 Å. The C(1)-O(5) bond length is 1.22 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1) and two equivalent C(4) atoms. There is one shorter (1.35 Å) and one longer (1.41 Å) C(2)-C(4) bond length. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(5), one C(8), and one H(1) atom. The C(3)-C(5) bond length is 1.39 Å. The C(3)-C(8) bond length is 1.39 Å. The C(3)-H(1) bond length is 0.94 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to two equivalent C(2) and one H(2) atom. The C(4)-H(2) bond length is 0.94 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(3), one C(6), and one C(9) atom. The C(5)-C(6) bond length is 1.47 Å. The C(5)-C(9) bond length is 1.41 Å. In the sixth C site, C(6) is bonded in a bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(6)-O(3) bond length is 1.26 Å. The C(6)-O(4) bond length is 1.24 Å. In the seventh C site, C(7) is bonded in a bent 120 degrees geometry to one C(8) and two equivalent O(1) atoms. The C(7)-C(8) bond length is 1.46 Å. Both C(7)-O(1) bond lengths are 1.24 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(7) and two equivalent C(3) atoms. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to two equivalent C(5) and one H(3) atom. The C(9)-H(3) bond length is 0.94 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(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(9) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(7) atom. In the second O site, O(2) is bonded in a water-like geometry to one Zn(1) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(6) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one C(6) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one C(1) atom. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one Co(1) and two equivalent Zn(1) atoms. Linkers: 10 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 6 O=[C]O[Zn@]12O[C]O[Co]O[C]O[Zn@](O[C]=O)(O[C]O1)O2. RCSR code: qnb. The MOF has largest included sphere 6.02 A, density 1.04 g/cm3, surface area 3587.40 m2/g, accessible volume 0.58 cm3/g