Cu2C16NH11O9 crystallizes in the orthorhombic Fddd space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 6-coordinate geometry to one H(1), one O(2), one O(7), one O(8), and two equivalent O(1) atoms. The Cu(1)-H(1) bond length is 1.98 Å. The Cu(1)-O(2) bond length is 2.13 Å. The Cu(1)-O(7) bond length is 1.94 Å. The Cu(1)-O(8) bond length is 1.96 Å. There is one shorter (1.98 Å) and one longer (1.99 Å) Cu(1)-O(1) bond length. In the second Cu site, Cu(2) is bonded in a distorted trigonal pyramidal geometry to one O(1), one O(3), one O(6), and one O(9) atom. The Cu(2)-O(1) bond length is 1.94 Å. The Cu(2)-O(3) bond length is 2.22 Å. The Cu(2)-O(6) bond length is 1.96 Å. The Cu(2)-O(9) bond length is 1.97 Å. There are sixteen inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(3), one O(2), and one O(3) atom. The C(1)-C(3) bond length is 1.51 Å. The C(1)-O(2) bond length is 1.25 Å. The C(1)-O(3) bond length is 1.28 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(4), and one O(5) atom. The C(2)-C(4) bond length is 1.48 Å. The C(2)-O(4) bond length is 1.28 Å. The C(2)-O(5) bond length is 1.23 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(4), and one C(6) atom. The C(3)-C(4) bond length is 1.45 Å. The C(3)-C(6) bond length is 1.36 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(2), one C(3), and one C(5) atom. The C(4)-C(5) bond length is 1.38 Å. In the fifth C site, C(5) is bonded in a 3-coordinate geometry to one C(4), one C(8), and one N(1) atom. The C(5)-C(8) bond length is 1.49 Å. The C(5)-N(1) bond length is 1.37 Å. In the sixth C site, C(6) is bonded in a 3-coordinate geometry to one C(3), one C(7), and one N(1) atom. The C(6)-C(7) bond length is 1.50 Å. The C(6)-N(1) bond length is 1.39 Å. In the seventh C site, C(7) is bonded in a trigonal non-coplanar geometry to one C(6), one H(2), one H(3), and one H(4) atom. The C(7)-H(2) bond length is 0.96 Å. The C(7)-H(3) bond length is 0.96 Å. The C(7)-H(4) bond length is 0.96 Å. In the eighth C site, C(8) is bonded in a trigonal non-coplanar geometry to one C(5), one H(5), one H(6), and one H(7) atom. The C(8)-H(5) bond length is 0.96 Å. The C(8)-H(6) bond length is 0.96 Å. The C(8)-H(7) bond length is 0.96 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(10), one C(14), and one N(1) atom. The C(9)-C(10) bond length is 1.38 Å. The C(9)-C(14) bond length is 1.41 Å. The C(9)-N(1) bond length is 1.44 Å. In the tenth C site, C(10) is bonded in a distorted single-bond geometry to one C(11), one C(9), and one H(8) atom. The C(10)-C(11) bond length is 1.39 Å. The C(10)-H(8) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(16) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-C(16) bond length is 1.51 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(11), one C(13), and one H(9) atom. The C(12)-C(13) bond length is 1.40 Å. The C(12)-H(9) bond length is 0.93 Å. In the thirteenth C site, C(13) is bonded in a trigonal planar geometry to one C(12), one C(14), and one C(15) atom. The C(13)-C(14) bond length is 1.39 Å. The C(13)-C(15) bond length is 1.51 Å. In the fourteenth C site, C(14) is bonded in a distorted single-bond geometry to one C(13), one C(9), and one H(10) atom. The C(14)-H(10) 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(13), one O(6), and one O(7) atom. The C(15)-O(6) bond length is 1.24 Å. The C(15)-O(7) bond length is 1.26 Å. In the sixteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(8), and one O(9) atom. The C(16)-O(8) bond length is 1.24 Å. The C(16)-O(9) bond length is 1.27 Å. N(1) is bonded in a trigonal planar geometry to one C(5), one C(6), and one C(9) atom. There are eleven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one Cu(1) and one O(1) atom. The H(1)-O(1) bond length is 0.91 Å. In the second H site, H(2) is bonded in a single-bond geometry to one C(7) 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 C(7) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(8) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(10) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(12) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(14) atom. In the eleventh H site, H(11) is bonded in a distorted single-bond geometry to one O(3) and one O(4) atom. The H(11)-O(3) bond length is 1.64 Å. The H(11)-O(4) bond length is 0.87 Å. There are nine inequivalent O sites. In the first O site, O(3) is bonded in a distorted trigonal planar geometry to one Cu(2), one C(1), and one H(11) atom. In the second O site, O(4) is bonded in a water-like geometry to one C(2) and one H(11) atom. In the third O site, O(5) is bonded in a single-bond geometry to one C(2) atom. In the fourth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Cu(2) and one C(15) atom. In the fifth O site, O(7) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(15) atom. In the sixth O site, O(8) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(16) atom. In the seventh O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Cu(2) and one C(16) atom. In the eighth O site, O(1) is bonded in a distorted single-bond geometry to one Cu(2), two equivalent Cu(1), and one H(1) atom. In the ninth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Cu(1) and one C(1) atom. Linkers: 32 Cc1c(C([O])=O)c(C(=O)O)c(C)n1-c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 5 O=[C]O[Cu@@]1(O)O[C]O[Cu]O[C]O[Cu]2(O)O[C]O[Cu](O[C]O2)O[C]O1 ,3 O=[C]O[Cu@]1(O)O[C]O[Cu]O[C]O[Cu@](O)(O[C]=O)O[C]O[Cu]O[C]O1 ,3 O[Cu@]12O[C]O[Cu](O[C]O1)O[C]O[Cu@]1(O)O[C]O[Cu](O[C]O2)O[C]O1 ,4 O[Cu@]12O[C]O[Cu]3(O[C]O[Cu@]4(O)O[C]O[Cu]3(O[C]O1)O[C]O4)O[C]O2 ,1 O=[C]O[Cu@]1(O)O[C]O[Cu]O[C]O[Cu]2(O)O[C]O[Cu](O[C]O2)O[C]O1. The MOF has largest included sphere 8.42 A, density 1.03 g/cm3, surface area 3750.26 m2/g, accessible volume 0.64 cm3/g