CuC8H7(NO2)2 crystallizes in the monoclinic C2/c space group. Cu(1) is bonded in a T-shaped geometry to one N(1), one O(1), and one O(3) atom. The Cu(1)-N(1) bond length is 2.08 Å. The Cu(1)-O(1) bond length is 1.94 Å. The Cu(1)-O(3) bond length is 1.97 Å. There are nine inequivalent C sites. In the first 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 1.40 Å. The C(1)-C(3) bond length is 1.37 Å. The C(1)-C(4) bond length is 1.49 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(5) atom. The C(2)-C(3) bond length is 1.38 Å. The C(2)-C(5) bond length is 1.50 Å. In the third C site, C(3) is bonded in a single-bond geometry to one C(1), one C(2), and one H(1) atom. The C(3)-H(1) bond length is 0.87 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(1), one O(1), and one O(2) atom. The C(4)-O(1) bond length is 1.26 Å. The C(4)-O(2) bond length is 1.24 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(3), and one O(4) atom. The C(5)-O(3) bond length is 1.29 Å. The C(5)-O(4) bond length is 1.21 Å. In the sixth C site, C(6) is bonded to one N(1), one N(2), one H(3), and one H(4) atom to form corner-sharing CH2N2 tetrahedra. The C(6)-N(1) bond length is 1.49 Å. The C(6)-N(2) bond length is 1.46 Å. The C(6)-H(3) bond length is 0.98 Å. The C(6)-H(4) bond length is 0.95 Å. In the seventh C site, C(7) is bonded to one N(1), one N(2), one H(5), and one H(6) atom to form corner-sharing CH2N2 tetrahedra. The C(7)-N(1) bond length is 1.49 Å. The C(7)-N(2) bond length is 1.45 Å. The C(7)-H(5) bond length is 1.06 Å. The C(7)-H(6) bond length is 0.93 Å. In the eighth C site, C(8) is bonded to two equivalent N(1) and two equivalent H(2) atoms to form corner-sharing CH2N2 tetrahedra. Both C(8)-N(1) bond lengths are 1.49 Å. Both C(8)-H(2) bond lengths are 1.04 Å. In the ninth C site, C(9) is bonded to two equivalent N(2) and two equivalent H(7) atoms to form corner-sharing CH2N2 tetrahedra. Both C(9)-N(2) bond lengths are 1.47 Å. Both C(9)-H(7) bond lengths are 1.00 Å. There are two inequivalent N sites. In the first N site, N(2) is bonded in a trigonal non-coplanar geometry to one C(6), one C(7), and one C(9) atom. In the second N site, N(1) is bonded to one Cu(1), one C(6), one C(7), and one C(8) atom to form corner-sharing NCuC3 tetrahedra. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(8) 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(6) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(7) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(9) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(4) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(4) atom. In the third O site, O(3) is bonded in a water-like geometry to one Cu(1) and one C(5) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(5) atom. Linkers: 2 [O]C(=O)c1cc(C([O])=O)c(C([O])=O)cc1C([O])=O ,2 C1N2CN3CN1CN(C2)C3. Metal clusters: 4 O=[C]O[Cu]O[C]=O. The MOF has largest included sphere 4.60 A, density 1.19 g/cm3, surface area 3783.01 m2/g, accessible volume 0.42 cm3/g