Cu2C14NH7O7 crystallizes in the monoclinic C2/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a rectangular see-saw-like geometry to one N(1), one O(1), one O(4), and one O(7) atom. The Cu(1)-N(1) bond length is 2.02 Å. The Cu(1)-O(1) bond length is 1.94 Å. The Cu(1)-O(4) bond length is 1.95 Å. The Cu(1)-O(7) bond length is 1.94 Å. In the second Cu site, Cu(2) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(7) atoms. The Cu(2)-O(2) bond length is 1.92 Å. The Cu(2)-O(3) bond length is 1.92 Å. There is one shorter (1.97 Å) and one longer (1.98 Å) Cu(2)-O(7) bond length. There are fourteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.39 Å. The C(1)-C(7) bond length is 1.51 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one H(1) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-H(1) bond length is 0.93 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(8) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-C(8) bond length is 1.49 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(2) atom. The C(4)-C(5) bond length is 1.37 Å. The C(4)-H(2) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(9) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-C(9) bond length is 1.52 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(3) atom. The C(6)-H(3) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.27 Å. The C(7)-O(2) bond length is 1.24 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.26 Å. The C(8)-O(4) bond length is 1.26 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(5), and one O(6) atom. The C(9)-O(5) bond length is 1.21 Å. The C(9)-O(6) bond length is 1.31 Å. In the tenth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one N(1), and one H(4) atom. The C(10)-C(11) bond length is 1.36 Å. The C(10)-N(1) bond length is 1.36 Å. The C(10)-H(4) bond length is 0.93 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one H(5) atom. The C(11)-C(12) bond length is 1.39 Å. The C(11)-H(5) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(12), and one C(13) atom. The C(12)-C(12) bond length is 1.48 Å. The C(12)-C(13) bond length is 1.39 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 1.36 Å. The C(13)-H(6) bond length is 0.93 Å. In the fourteenth C site, C(14) is bonded in a distorted trigonal planar geometry to one C(13), one N(1), and one H(7) atom. The C(14)-N(1) bond length is 1.34 Å. The C(14)-H(7) bond length is 0.93 Å. N(1) is bonded in a trigonal planar geometry to one Cu(1), one C(10), and one C(14) atom. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) 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(10) 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(13) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(14) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Cu(1) and one C(7) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cu(2) and one C(7) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Cu(2) and one C(8) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one C(9) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Cu(1) and two equivalent Cu(2) atoms. Linkers: 2 c1cc(-c2ccncc2)ccn1 ,2 [c]1cc(-c2ccncc2)ccn1 ,4 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 2 [C]1O[Cu]2O[C]O[Cu]3O[C]O[Cu](O[C]O[Cu](O1)O2)O3. The MOF has largest included sphere 4.68 A, density 1.49 g/cm3, surface area 3702.02 m2/g, accessible volume 0.35 cm3/g