Zn2C19H7O8 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(8) atom. The Zn(1)-O(4) bond length is 2.03 Å. The Zn(1)-O(5) bond length is 2.49 Å. The Zn(1)-O(8) bond length is 2.07 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(5), and one O(7) atom. The Zn(2)-O(1) bond length is 2.41 Å. The Zn(2)-O(2) bond length is 1.99 Å. The Zn(2)-O(3) bond length is 1.96 Å. The Zn(2)-O(5) bond length is 2.00 Å. The Zn(2)-O(7) bond length is 1.94 Å. There are twenty 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(3), and one O(4) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(3) bond length is 1.25 Å. The C(1)-O(4) bond length is 1.27 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(6) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-C(6) 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 0.95 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(16), one C(3), and one C(5) atom. The C(4)-C(16) bond length is 1.50 Å. The C(4)-C(5) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(17), one C(4), and one H(2) atom. The C(5)-C(17) bond length is 1.39 Å. The C(5)-H(2) bond length is 0.95 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(17), one C(2), and one H(3) atom. The C(6)-C(17) bond length is 1.38 Å. The C(6)-H(3) bond length is 0.95 Å. In the seventh C site, C(7) is bonded in a bent 120 degrees geometry to one C(8), one O(1), and one O(2) atom. The C(7)-C(8) bond length is 1.51 Å. The C(7)-O(1) bond length is 1.23 Å. The C(7)-O(2) bond length is 1.26 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(10), one C(7), and one C(9) atom. The C(8)-C(10) bond length is 1.39 Å. The C(8)-C(9) bond length is 1.38 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(12), one C(8), and one H(4) atom. The C(9)-C(12) bond length is 1.40 Å. The C(9)-H(4) bond length is 0.95 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(14), one C(8), and one H(5) atom. The C(10)-C(14) bond length is 1.40 Å. The C(10)-H(5) bond length is 0.95 Å. In the eleventh C site, C(11) is bonded in a bent 120 degrees geometry to one C(12), one O(5), and one O(6) atom. The C(11)-C(12) bond length is 1.49 Å. The C(11)-O(5) bond length is 1.26 Å. The C(11)-O(6) bond length is 1.26 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(9) atom. The C(12)-C(13) bond length is 1.38 Å. In the thirteenth C site, C(13) is bonded in a distorted single-bond geometry to one C(12), one C(14), and one H(6) atom. The C(13)-C(14) bond length is 1.40 Å. The C(13)-H(6) bond length is 0.95 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one C(10), one C(13), and one C(15) atom. The C(14)-C(15) bond length is 1.48 Å. In the fifteenth C site, C(15) is bonded in a trigonal planar geometry to one C(14), one C(16), and one C(20) atom. The C(15)-C(16) bond length is 1.41 Å. The C(15)-C(20) bond length is 1.39 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one C(15), one C(19), and one C(4) atom. The C(16)-C(19) bond length is 1.39 Å. In the seventeenth C site, C(17) is bonded in a trigonal planar geometry to one C(18), one C(5), and one C(6) atom. The C(17)-C(18) bond length is 1.51 Å. In the eighteenth C site, C(18) is bonded in a distorted bent 120 degrees geometry to one C(17), one O(7), and one O(8) atom. The C(18)-O(7) bond length is 1.25 Å. The C(18)-O(8) bond length is 1.27 Å. In the nineteenth C site, C(19) is bonded in a distorted single-bond geometry to two equivalent C(16) and one H(7) atom. The C(19)-H(7) bond length is 0.95 Å. In the twentieth C site, C(20) is bonded in a distorted single-bond geometry to two equivalent C(15) and one H(8) atom. The C(20)-H(8) bond length is 0.95 Å. There are eight 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(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(9) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(13) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(19) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(20) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Zn(2) and one C(7) atom. In the second O site, O(2) is bonded in a water-like geometry to one Zn(2) and one C(7) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one C(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Zn(1), one Zn(2), and one C(11) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(11) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one C(18) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(18) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)cc(-c2cc(-c3cc(C([O])=O)cc(C([O])=O)c3)c(-c3cc(C([O])=O)cc(C([O])=O)c3)cc2-c2cc(C([O])=O)cc(C([O])=O)c2)c1. Metal clusters: 8 O=[C]O[Zn]12O[C]O[Zn](O[C]O1)O[C]O2. RCSR code: flu. The MOF has largest included sphere 8.95 A, density 0.93 g/cm3, surface area 3700.71 m2/g, accessible volume 0.74 cm3/g