Zn4H6(C6O5)3 crystallizes in the orthorhombic Ibam space group. There are eight inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a distorted square co-planar geometry to one O(10), one O(2), one O(3), and one O(4) atom. The Zn(1)-O(10) bond length is 2.02 Å. The Zn(1)-O(2) bond length is 2.02 Å. The Zn(1)-O(3) bond length is 2.06 Å. The Zn(1)-O(4) bond length is 2.05 Å. In the second Zn site, Zn(2) is bonded to one O(11), one O(23), one O(5), and one O(8) atom to form ZnO4 tetrahedra that share  a cornercorner with one Zn(7)O5 square pyramid and  a cornercorner with one Zn(2)O4 tetrahedra. The Zn(2)-O(11) bond length is 1.93 Å. The Zn(2)-O(23) bond length is 1.98 Å. The Zn(2)-O(5) bond length is 1.94 Å. The Zn(2)-O(8) bond length is 1.97 Å. In the third Zn site, Zn(3) is bonded in a 5-coordinate geometry to one Zn(4), one O(18), one O(21), one O(22), and one O(24) atom. The Zn(3)-Zn(4) bond length is 1.66 Å. The Zn(3)-O(18) bond length is 2.27 Å. The Zn(3)-O(21) bond length is 2.02 Å. The Zn(3)-O(22) bond length is 1.82 Å. The Zn(3)-O(24) bond length is 1.91 Å. In the fourth Zn site, Zn(4) is bonded in a 4-coordinate geometry to one Zn(3), one O(14), one O(15), one O(18), and one O(22) atom. The Zn(4)-O(14) bond length is 2.01 Å. The Zn(4)-O(15) bond length is 1.94 Å. The Zn(4)-O(18) bond length is 1.97 Å. The Zn(4)-O(22) bond length is 2.09 Å. In the fifth Zn site, Zn(5) is bonded in a distorted square co-planar geometry to two equivalent O(7) and two equivalent O(9) atoms. Both Zn(5)-O(7) bond lengths are 2.00 Å. Both Zn(5)-O(9) bond lengths are 2.06 Å. In the sixth Zn site, Zn(6) is bonded in a distorted trigonal bipyramidal geometry to one O(22), two equivalent O(12), and two equivalent O(6) atoms. The Zn(6)-O(22) bond length is 1.95 Å. Both Zn(6)-O(12) bond lengths are 2.03 Å. Both Zn(6)-O(6) bond lengths are 2.04 Å. In the seventh Zn site, Zn(7) is bonded to one O(23), two equivalent O(1), and two equivalent O(17) atoms to form corner-sharing ZnO5 square pyramids. The Zn(7)-O(23) bond length is 2.18 Å. Both Zn(7)-O(1) bond lengths are 2.04 Å. Both Zn(7)-O(17) bond lengths are 2.02 Å. In the eighth Zn site, Zn(8) is bonded in a 5-coordinate geometry to one O(22), two equivalent O(13), and two equivalent O(19) atoms. The Zn(8)-O(22) bond length is 1.91 Å. Both Zn(8)-O(13) bond lengths are 2.09 Å. Both Zn(8)-O(19) bond lengths are 2.35 Å. There are twenty-seven inequivalent C sites. In the first C site, C(17) is bonded in a distorted single-bond geometry to one C(14), one C(3), and one H(7) atom. The C(17)-C(14) bond length is 1.41 Å. The C(17)-C(3) bond length is 1.38 Å. The C(17)-H(7) bond length is 0.95 Å. In the second C site, C(18) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(8) atom. The C(18)-C(3) bond length is 1.38 Å. The C(18)-C(5) bond length is 1.39 Å. The C(18)-H(8) bond length is 0.95 Å. In the third C site, C(19) is bonded in a distorted single-bond geometry to one C(20), one C(7), and one H(9) atom. The C(19)-C(20) bond length is 1.42 Å. The C(19)-C(7) bond length is 1.39 Å. The C(19)-H(9) bond length is 0.95 Å. In the fourth C site, C(20) is bonded in a trigonal planar geometry to one C(11), one C(19), and one C(27) atom. The C(20)-C(11) bond length is 1.35 Å. The C(20)-C(27) bond length is 1.51 Å. In the fifth C site, C(21) is bonded in a bent 120 degrees geometry to one C(10), one O(2), and one O(4) atom. The C(21)-C(10) bond length is 1.52 Å. The C(21)-O(2) bond length is 1.26 Å. The C(21)-O(4) bond length is 1.26 Å. In the sixth C site, C(22) is bonded in a bent 120 degrees geometry to one C(7), one O(17), and one O(8) atom. The C(22)-C(7) bond length is 1.49 Å. The C(22)-O(17) bond length is 1.27 Å. The C(22)-O(8) bond length is 1.24 Å. In the seventh C site, C(23) is bonded in a 3-coordinate geometry to one C(5), one O(13), one O(15), and one O(21) atom. The C(23)-C(5) bond length is 1.51 Å. The C(23)-O(13) bond length is 1.20 Å. The C(23)-O(15) bond length is 1.31 Å. The C(23)-O(21) bond length is 1.24 Å. In the eighth C site, C(24) is bonded in a bent 120 degrees geometry to one C(25), one O(7), and one O(9) atom. The C(24)-C(25) bond length is 1.50 Å. The C(24)-O(7) bond length is 1.25 Å. The C(24)-O(9) bond length is 1.24 Å. In the ninth C site, C(25) is bonded in a trigonal planar geometry to one C(11), one C(16), and one C(24) atom. The C(25)-C(11) bond length is 1.36 Å. The C(25)-C(16) bond length is 1.39 Å. In the tenth C site, C(26) is bonded in a bent 120 degrees geometry to one C(9), one O(12), and one O(18) atom. The C(26)-C(9) bond length is 1.51 Å. The C(26)-O(12) bond length is 1.24 Å. The C(26)-O(18) bond length is 1.21 Å. In the eleventh C site, C(27) is bonded in a 3-coordinate geometry to one C(20), one O(14), one O(19), and one O(6) atom. The C(27)-O(14) bond length is 1.41 Å. The C(27)-O(19) bond length is 1.33 Å. The C(27)-O(6) bond length is 1.20 Å. In the twelfth C site, C(1) is bonded in a single-bond geometry to one C(14), one C(5), and one H(1) atom. The C(1)-C(14) bond length is 1.38 Å. The C(1)-C(5) bond length is 1.39 Å. The C(1)-H(1) bond length is 0.95 Å. In the thirteenth C site, C(2) is bonded in a single-bond geometry to one C(8), one C(9), and one H(2) atom. The C(2)-C(8) bond length is 1.40 Å. The C(2)-C(9) bond length is 1.39 Å. The C(2)-H(2) bond length is 0.95 Å. In the fourteenth C site, C(3) is bonded in a trigonal planar geometry to one C(15), one C(17), and one C(18) atom. The C(3)-C(15) bond length is 1.49 Å. In the fifteenth C site, C(4) is bonded in a distorted single-bond geometry to one C(10), one C(8), and one H(3) atom. The C(4)-C(10) bond length is 1.40 Å. The C(4)-C(8) bond length is 1.39 Å. The C(4)-H(3) bond length is 0.95 Å. In the sixteenth C site, C(5) is bonded in a trigonal planar geometry to one C(1), one C(18), and one C(23) atom. In the seventeenth C site, C(6) is bonded in a distorted single-bond geometry to one C(10), one C(9), and one H(4) atom. The C(6)-C(10) bond length is 1.38 Å. The C(6)-C(9) bond length is 1.39 Å. The C(6)-H(4) bond length is 0.95 Å. In the eighteenth C site, C(7) is bonded in a trigonal planar geometry to one C(16), one C(19), and one C(22) atom. The C(7)-C(16) bond length is 1.40 Å. In the nineteenth C site, C(8) is bonded in a trigonal planar geometry to one C(12), one C(2), and one C(4) atom. The C(8)-C(12) bond length is 1.50 Å. In the twentieth C site, C(9) is bonded in a trigonal planar geometry to one C(2), one C(26), and one C(6) atom. In the twenty-first C site, C(10) is bonded in a trigonal planar geometry to one C(21), one C(4), and one C(6) atom. In the twenty-second C site, C(11) is bonded in a distorted single-bond geometry to one C(20), one C(25), and one H(5) atom. The C(11)-H(5) bond length is 0.95 Å. In the twenty-third C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(1), and one O(5) atom. The C(12)-O(1) bond length is 1.22 Å. The C(12)-O(5) bond length is 1.28 Å. In the twenty-fourth C site, C(13) is bonded in a 3-coordinate geometry to one C(14), one O(11), one O(16), and one O(20) atom. The C(13)-C(14) bond length is 1.49 Å. The C(13)-O(11) bond length is 1.25 Å. The C(13)-O(16) bond length is 1.27 Å. The C(13)-O(20) bond length is 1.26 Å. In the twenty-fifth C site, C(14) is bonded in a trigonal planar geometry to one C(1), one C(13), and one C(17) atom. In the twenty-sixth C site, C(15) is bonded in a bent 120 degrees geometry to one C(3), one O(10), and one O(3) atom. The C(15)-O(10) bond length is 1.27 Å. The C(15)-O(3) bond length is 1.26 Å. In the twenty-seventh C site, C(16) is bonded in a distorted single-bond geometry to one C(25), one C(7), and one H(6) atom. The C(16)-H(6) bond length is 0.95 Å. There are nine inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(11) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(16) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(17) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(18) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(19) atom. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Zn(7) and one C(12) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(21) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one C(15) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Zn(1) and one C(21) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(12) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Zn(6) and one C(27) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Zn(5) and one C(24) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(22) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Zn(5) and one C(24) atom. In the tenth O site, O(10) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one C(15) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Zn(2) and one C(13) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Zn(6) and one C(26) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one Zn(8) and one C(23) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one Zn(4), one C(27), and one O(19) atom. The O(14)-O(19) bond length is 1.31 Å. In the fifteenth O site, O(15) is bonded in a distorted T-shaped geometry to one Zn(4), one C(23), and one O(21) atom. The O(15)-O(21) bond length is 0.80 Å. In the sixteenth O site, O(16) is bonded in a 2-coordinate geometry to one C(13) and one O(20) atom. The O(16)-O(20) bond length is 1.08 Å. In the seventeenth O site, O(17) is bonded in a distorted bent 150 degrees geometry to one Zn(7) and one C(22) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Zn(3), one Zn(4), and one C(26) atom. In the nineteenth O site, O(19) is bonded in a distorted single-bond geometry to one Zn(8), one C(27), and one O(14) atom. In the twentieth O site, O(20) is bonded in a distorted single-bond geometry to one C(13) and one O(16) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Zn(3), one C(23), and one O(15) atom. In the twenty-second O site, O(22) is bonded in a 6-coordinate geometry to one Zn(6), one Zn(8), two equivalent Zn(3), and two equivalent Zn(4) atoms. In the twenty-third O site, O(23) is bonded in a distorted trigonal non-coplanar geometry to one Zn(7) and two equivalent Zn(2) atoms. In the twenty-fourth O site, O(24) is bonded in a 2-coordinate geometry to two equivalent Zn(3) atoms. Linkers: 16 [O]C(=O)c1c[c]cc(C2([O])OO2)c1.[O]O[C]=O ,16 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1 ,16 [O]C(=O)c1cc(C([O])=O)cc(C2([O])OO2)c1. Metal clusters: 96 [Zn]. The MOF has largest included sphere 10.74 A, density 1.14 g/cm3, surface area 2978.50 m2/g, accessible volume 0.58 cm3/g