Cu2C22NH11O8 crystallizes in the hexagonal P6_3/mmc space group. Cu(1) is bonded in a distorted square co-planar geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Cu(1)-O(1) bond lengths are 1.96 Å. Both Cu(1)-O(2) bond lengths are 1.95 Å. There are nine inequivalent C sites. In the first C site, C(8) is bonded in a distorted trigonal planar geometry to two equivalent C(6) and one N(1) atom. Both C(8)-C(6) bond lengths are 1.39 Å. The C(8)-N(1) bond length is 1.36 Å. In the second C site, C(9) is bonded in a distorted trigonal planar geometry to two equivalent C(7) and one H(5) atom. Both C(9)-C(7) bond lengths are 1.39 Å. The C(9)-H(5) bond length is 0.95 Å. In the third C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(3), and one C(4) atom. The C(1)-C(2) bond length is 1.49 Å. The C(1)-C(3) bond length is 1.39 Å. The C(1)-C(4) bond length is 1.39 Å. In the fourth C site, C(2) is bonded in a bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(2)-O(1) bond length is 1.26 Å. The C(2)-O(2) bond length is 1.26 Å. In the fifth C site, C(3) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(1) atom. The C(3)-C(5) bond length is 1.38 Å. The C(3)-H(1) bond length is 0.95 Å. In the sixth C site, C(4) is bonded in a distorted single-bond geometry to two equivalent C(1) and one H(2) atom. The C(4)-H(2) bond length is 0.95 Å. In the seventh C site, C(5) is bonded in a trigonal planar geometry to one C(6) and two equivalent C(3) atoms. The C(5)-C(6) bond length is 1.50 Å. In the eighth C site, C(6) is bonded in a trigonal planar geometry to one C(5), one C(7), and one C(8) atom. The C(6)-C(7) bond length is 1.38 Å. In the ninth C site, C(7) is bonded in a distorted single-bond geometry to one C(6), one C(9), and one H(4) atom. The C(7)-H(4) bond length is 0.95 Å. N(1) is bonded in a trigonal planar geometry to one C(8) and two equivalent H(3) atoms. Both N(1)-H(3) bond lengths are 0.88 Å. There are five inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one C(4) atom. In the second H site, H(3) is bonded in a single-bond geometry to one N(1) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(9) atom. In the fifth H site, H(1) is bonded in a single-bond geometry to one C(3) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to one Cu(1) and one C(2) atom. Linkers: 6 Nc1c(-c2cc(C([O])=O)cc(C([O])=O)c2)cccc1-c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 6 [C]1O[Cu]234O[C]O[Cu]2(O1)(O[C]O3)O[C]O4. RCSR code: ssa. The MOF has largest included sphere 10.61 A, density 0.77 g/cm3, surface area 3823.37 m2/g, accessible volume 0.82 cm3/g