Zn2C9H3O7 crystallizes in the orthorhombic P2_12_12_1 space group. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(2), one O(3), one O(6), one O(7), and one O(9) atom to form corner-sharing ZnO6 octahedra. The Zn(1)-O(1) bond length is 2.28 Å. The Zn(1)-O(2) bond length is 2.13 Å. The Zn(1)-O(3) bond length is 2.03 Å. The Zn(1)-O(6) bond length is 2.02 Å. The Zn(1)-O(7) bond length is 2.08 Å. The Zn(1)-O(9) bond length is 2.14 Å. In the second Zn site, Zn(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. The Zn(2)-O(1) bond length is 2.27 Å. The Zn(2)-O(2) bond length is 2.03 Å. The Zn(2)-O(3) bond length is 2.56 Å. The Zn(2)-O(4) bond length is 2.00 Å. The Zn(2)-O(5) bond length is 1.94 Å. In the third Zn site, Zn(3) is bonded to one O(10), one O(12), one O(2), and one O(7) atom to form ZnO4 tetrahedra that share corners with two equivalent Zn(1)O6 octahedra and  a cornercorner with one Zn(4)O4 trigonal pyramid. The corner-sharing octahedral tilt angles range from 56-68°. The Zn(3)-O(10) bond length is 1.95 Å. The Zn(3)-O(12) bond length is 1.93 Å. The Zn(3)-O(2) bond length is 1.92 Å. The Zn(3)-O(7) bond length is 1.98 Å. In the fourth Zn site, Zn(4) is bonded to one O(11), one O(13), one O(14), and one O(7) atom to form ZnO4 trigonal pyramids that share  a cornercorner with one Zn(1)O6 octahedra and  a cornercorner with one Zn(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 76°. The Zn(4)-O(11) bond length is 2.03 Å. The Zn(4)-O(13) bond length is 1.89 Å. The Zn(4)-O(14) bond length is 1.89 Å. The Zn(4)-O(7) bond length is 1.96 Å. There are eighteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(11), and one O(3) atom. The C(1)-C(10) bond length is 1.52 Å. The C(1)-O(11) bond length is 1.25 Å. The C(1)-O(3) bond length is 1.26 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(10), one C(17), and one C(8) atom. The C(2)-C(10) bond length is 1.46 Å. The C(2)-C(17) bond length is 1.35 Å. The C(2)-C(8) bond length is 1.50 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(13), and one O(9) atom. The C(3)-C(7) bond length is 1.49 Å. The C(3)-O(13) bond length is 1.25 Å. The C(3)-O(9) bond length is 1.25 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(5), one C(6), and one C(7) atom. The C(4)-C(5) bond length is 1.38 Å. The C(4)-C(6) bond length is 1.51 Å. The C(4)-C(7) bond length is 1.38 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4) and one H(1) atom. The C(5)-H(1) bond length is 0.93 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(1), and one O(10) atom. The C(6)-O(1) bond length is 1.30 Å. The C(6)-O(10) bond length is 1.23 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(16), one C(3), and one C(4) atom. The C(7)-C(16) bond length is 1.43 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(6), and one O(8) atom. The C(8)-O(6) bond length is 1.21 Å. The C(8)-O(8) bond length is 1.27 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one H(2) atom. The C(9)-C(10) bond length is 1.37 Å. The C(9)-C(12) bond length is 1.39 Å. The C(9)-H(2) bond length is 0.93 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(1), one C(2), and one C(9) atom. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(12), one C(15), and one C(17) atom. The C(11)-C(12) bond length is 1.39 Å. The C(11)-C(15) bond length is 1.46 Å. The C(11)-C(17) bond length is 1.39 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(11), one C(9), and one H(3) atom. The C(12)-H(3) bond length is 0.93 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one C(14), one C(16), and one C(18) atom. The C(13)-C(14) bond length is 1.42 Å. The C(13)-C(16) bond length is 1.33 Å. The C(13)-C(18) bond length is 1.55 Å. In the fourteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(13) and one H(4) atom. The C(14)-H(4) bond length is 0.93 Å. In the fifteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(14), and one O(4) atom. The C(15)-O(14) bond length is 1.24 Å. The C(15)-O(4) bond length is 1.30 Å. In the sixteenth C site, C(16) is bonded in a distorted single-bond geometry to one C(13), one C(7), and one H(5) atom. The C(16)-H(5) bond length is 0.93 Å. In the seventeenth C site, C(17) is bonded in a distorted single-bond geometry to one C(11), one C(2), and one H(6) atom. The C(17)-H(6) bond length is 0.93 Å. In the eighteenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(12), and one O(5) atom. The C(18)-O(12) bond length is 1.30 Å. The C(18)-O(5) bond length is 1.22 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(9) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(12) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(14) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(16) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(17) atom. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Zn(1), one Zn(2), and one C(6) atom. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Zn(1), one Zn(2), and one Zn(3) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Zn(1), one Zn(2), and one C(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Zn(2) and one C(15) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Zn(2) and one C(18) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(8) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Zn(1), one Zn(3), and one Zn(4) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one C(8) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Zn(1) and one C(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Zn(3) and one C(6) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Zn(4) and one C(1) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Zn(3) and one C(18) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Zn(4) and one C(3) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one Zn(4) and one C(15) atom. Linkers: 8 [O]C(=O)c1ccc(C([O])=O)c(C([O])=O)c1. Metal clusters: 16 [Zn]. The MOF has largest included sphere 7.27 A, density 1.47 g/cm3, surface area 3023.18 m2/g, accessible volume 0.37 cm3/g