Cu2C13N2H9O7 crystallizes in the cubic Pa-3 space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 5-coordinate geometry to one N(1), one O(1), one O(2), one O(3), and one O(5) atom. The Cu(1)-N(1) bond length is 1.94 Å. The Cu(1)-O(1) bond length is 2.58 Å. The Cu(1)-O(2) bond length is 1.95 Å. The Cu(1)-O(3) bond length is 1.93 Å. The Cu(1)-O(5) bond length is 2.00 Å. In the second Cu site, Cu(2) is bonded to one N(2), one O(1), one O(2), one O(3), and one O(4) atom to form distorted CuNO4 square pyramids that share  a cornercorner with one C(13)H3O tetrahedra. The Cu(2)-N(2) bond length is 1.98 Å. The Cu(2)-O(1) bond length is 1.97 Å. The Cu(2)-O(2) bond length is 2.49 Å. The Cu(2)-O(3) bond length is 1.92 Å. The Cu(2)-O(4) bond length is 1.98 Å. There are thirteen inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(7), and one C(8) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(7) bond length is 1.40 Å. The C(1)-C(8) bond length is 1.52 Å. In the second C site, C(2) is bonded in a single-bond geometry to one C(1), one C(4), and one H(7) atom. The C(2)-C(4) bond length is 1.40 Å. The C(2)-H(7) bond length is 0.86 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(4), and one O(5) atom. The C(3)-C(5) bond length is 1.51 Å. The C(3)-O(4) bond length is 1.27 Å. The C(3)-O(5) bond length is 1.26 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(10), one C(2), and one C(6) atom. The C(4)-C(10) bond length is 1.51 Å. The C(4)-C(6) bond length is 1.40 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(3), one C(6), and one C(7) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-C(7) bond length is 1.39 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(4), one C(5), and one H(9) atom. The C(6)-H(9) bond length is 0.96 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(8) atom. The C(7)-H(8) bond length is 0.97 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(6) atom. The C(8)-O(1) bond length is 1.29 Å. The C(8)-O(6) bond length is 1.24 Å. In the ninth C site, C(9) is bonded in a 2-coordinate geometry to one N(2) and one H(1) atom. The C(9)-N(2) bond length is 1.34 Å. The C(9)-H(1) bond length is 0.93 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(7) atom. The C(10)-O(2) bond length is 1.27 Å. The C(10)-O(7) bond length is 1.24 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(12) and one H(2) atom. The C(11)-C(12) bond length is 1.37 Å. The C(11)-H(2) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one C(11), one N(1), and one H(3) atom. The C(12)-N(1) bond length is 1.34 Å. The C(12)-H(3) bond length is 0.93 Å. In the thirteenth C site, C(13) is bonded to one H(5); two equivalent H(4,6); and one O(3) atom to form CH3O tetrahedra that share  a cornercorner with one Cu(2)NO4 square pyramid. The C(13)-H(5) bond length is 0.96 Å. Both C(13)-H(4,6) bond lengths are 0.96 Å. The C(13)-O(3) bond length is 1.45 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one Cu(1), one C(12), and one N(2) atom. The N(1)-N(2) bond length is 1.35 Å. In the second N site, N(2) is bonded in a 3-coordinate geometry to one Cu(2), one C(9), and one N(1) atom. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(9) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(11) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(12) atom. In the fourth H site, H(4,6) is bonded in a single-bond geometry to one C(13) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(13) atom. In the sixth H site, H(7) is bonded in a single-bond geometry to one C(2) atom. In the seventh H site, H(8) is bonded in a single-bond geometry to one C(7) atom. In the eighth H site, H(9) is bonded in a single-bond geometry to one C(6) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Cu(1), one Cu(2), and one C(8) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Cu(1), one Cu(2), and one C(10) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Cu(1), one Cu(2), and one C(13) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Cu(2) and one C(3) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(3) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(8) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one C(10) atom. Linkers: 17 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1 ,4 [CH]1C=CN=N1 ,3 [O][C]c1cc(C([O])=O)cc(C([O])=O)c1 ,12 C1=C[N]N=C1 ,3 [O]C(=O)c1cc([C]=O)cc(C([O])=O)c1 ,8 [CH]1C=NN=C1 ,1 [O][C]c1cc([C]=O)cc(C([O])=O)c1. Metal clusters: 4 CO[Cu@@]1(O[C]=O)=N[N][Cu](O[C]=O)O[C]O[Cu@@](OC)(O[C]=O)=N[N][Cu](O[C]=O)O[C]O[Cu@](OC)(O[C]=O)=N[N][Cu](O[C]=O)O[C]O[Cu@@](OC)(O[C]=O)=N[N][Cu](O[C]=O)O[C]O[Cu@](OC)(O[C]=O)=N[N][Cu](O[C]=O)O[C]O[Cu@@](OC)(O[C]=O)=N[N][Cu](O[C]=O)O[C]O1. RCSR code: fcu. The MOF has largest included sphere 8.75 A, density 1.17 g/cm3, surface area 3691.39 m2/g, accessible volume 0.55 cm3/g