Zn5H8(C9O7)2 crystallizes in the tetragonal I4cm space group. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form distorted ZnO4 tetrahedra that share  a cornercorner with one Zn(3)O5 square pyramid and  a cornercorner with one Zn(1)O4 tetrahedra. The Zn(1)-O(1) bond length is 1.94 Å. The Zn(1)-O(4) bond length is 1.97 Å. The Zn(1)-O(5) bond length is 1.97 Å. The Zn(1)-O(7) bond length is 1.95 Å. In the second Zn site, Zn(2) is bonded in a 3-coordinate geometry to one O(2), one O(4), one O(7), and one O(8) atom. The Zn(2)-O(2) bond length is 1.88 Å. The Zn(2)-O(4) bond length is 2.40 Å. The Zn(2)-O(7) bond length is 1.87 Å. The Zn(2)-O(8) bond length is 1.82 Å. In the third Zn site, Zn(3) is bonded to one O(7), two equivalent O(3), and two equivalent O(6) atoms to form corner-sharing ZnO5 square pyramids. The Zn(3)-O(7) bond length is 2.10 Å. Both Zn(3)-O(3) bond lengths are 2.09 Å. Both Zn(3)-O(6) bond lengths are 2.11 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(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 1.27 Å. The C(1)-O(2) bond length is 1.24 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(7) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-C(7) bond length is 1.39 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(1) atom. The C(3)-C(4) bond length is 1.40 Å. 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(3), one C(5), and one C(8) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-C(8) bond length is 1.49 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one H(2) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-H(2) bond length is 0.93 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(9) atom. The C(6)-C(7) bond length is 1.39 Å. The C(6)-C(9) bond length is 1.50 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(3) atom. The C(7)-H(3) bond length is 0.93 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.25 Å. The C(8)-O(4) bond length is 1.28 Å. In the ninth C site, C(9) is bonded in a bent 120 degrees geometry to one C(6), one O(5), and one O(6) atom. The C(9)-O(5) bond length is 1.26 Å. The C(9)-O(6) bond length is 1.24 Å. There are five 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(3) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(8) atom. The H(4)-O(8) bond length is 0.84 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 0.84 Å. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a 5-coordinate geometry to one Zn(3), two equivalent Zn(1), and two equivalent Zn(2) atoms. In the second O site, O(8) is bonded in a distorted tetrahedral geometry to two equivalent Zn(2), one H(4), and one H(5) atom. In the third O site, O(1) is bonded in a water-like geometry to one Zn(1) and one C(1) atom. In the fourth O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(1) atom. In the fifth O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(3) and one C(8) atom. In the sixth O site, O(4) is bonded in a 3-coordinate geometry to one Zn(1), one Zn(2), and one C(8) atom. In the seventh O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(9) atom. In the eighth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Zn(3) and one C(9) atom. Linkers: 16 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 8 O.[C]1O[Zn]23O[C]O[Zn@]4(O1)O[C]O[Zn@]41O[Zn@@]14O[C]O[Zn@]4(O[C]O2)O[C]O3. RCSR code: sab. The MOF has largest included sphere 8.19 A, density 1.37 g/cm3, surface area 2904.40 m2/g, accessible volume 0.49 cm3/g