Cu2C11N4H8O7 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one N(2), one O(4), one O(5), and two equivalent O(7) atoms to form a mixture of distorted edge and corner-sharing CuNO4 trigonal bipyramids. The Cu(1)-N(2) bond length is 2.00 Å. The Cu(1)-O(4) bond length is 1.97 Å. The Cu(1)-O(5) bond length is 1.97 Å. There is one shorter (1.94 Å) and one longer (2.35 Å) Cu(1)-O(7) bond length. In the second Cu site, Cu(2) is bonded to one N(1), one O(1), one O(4), one O(6), and one O(7) atom to form a mixture of distorted edge and corner-sharing CuNO4 trigonal bipyramids. The Cu(2)-N(1) bond length is 1.99 Å. The Cu(2)-O(1) bond length is 1.95 Å. The Cu(2)-O(4) bond length is 2.38 Å. The Cu(2)-O(6) bond length is 1.98 Å. The Cu(2)-O(7) bond length is 1.93 Å. There are eleven inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(4) atom. The C(1)-N(2) bond length is 1.32 Å. The C(1)-N(3) bond length is 1.37 Å. The C(1)-H(4) bond length is 1.09 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one N(1), one N(3), and one H(5) atom. The C(2)-N(1) bond length is 1.32 Å. The C(2)-N(3) bond length is 1.36 Å. The C(2)-H(5) bond length is 1.08 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(4), one C(8), and one C(9) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-C(8) bond length is 1.40 Å. The C(3)-C(9) bond length is 1.50 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(6) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(6) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(10), one C(4), and one C(6) atom. The C(5)-C(10) bond length is 1.51 Å. The C(5)-C(6) bond length is 1.40 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(5), one C(7), and one H(7) atom. The C(6)-C(7) bond length is 1.40 Å. The C(6)-H(7) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(11), one C(6), and one C(8) atom. The C(7)-C(11) bond length is 1.50 Å. The C(7)-C(8) bond length is 1.40 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(3), one C(7), and one H(8) atom. The C(8)-H(8) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(2) atom. The C(9)-O(1) bond length is 1.29 Å. The C(9)-O(2) bond length is 1.25 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(10)-O(3) bond length is 1.26 Å. The C(10)-O(4) bond length is 1.28 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(5), and one O(6) atom. The C(11)-O(5) bond length is 1.28 Å. The C(11)-O(6) bond length is 1.28 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Cu(2), one C(2), and one N(2) atom. The N(1)-N(2) bond length is 1.36 Å. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Cu(1), one C(1), and one N(1) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one C(1), one C(2), and one N(4) atom. The N(3)-N(4) bond length is 1.39 Å. In the fourth N site, N(4) is bonded in a distorted bent 120 degrees geometry to one N(3), one H(2), and one H(3) atom. The N(4)-H(2) bond length is 1.03 Å. The N(4)-H(3) bond length is 1.02 Å. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(3) and one O(7) atom. The H(1)-O(3) bond length is 1.68 Å. The H(1)-O(7) bond length is 1.00 Å. In the second H site, H(2) is bonded in a single-bond geometry to one N(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one N(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(1) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(2) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(4) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(6) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(8) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(2) and one C(9) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(9) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one C(10) and one H(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Cu(1), one Cu(2), and one C(10) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(11) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Cu(2) and one C(11) atom. In the seventh O site, O(7) is bonded in a 1-coordinate geometry to one Cu(2), two equivalent Cu(1), and one H(1) atom. Linkers: 4 Nn1cnnc1 ,4 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 2 O=[C]O[Cu]1[N]N=[Cu@](O)(O[C]=O)O[C]O[Cu](O[C]=O)[N]N=[Cu@@](O)(O[C]=O)O[C]O1. RCSR code: rtl. The MOF has largest included sphere 1.96 A, density 2.22 g/cm3, surface area 3109.23 m2/g, accessible volume 0.09 cm3/g