CuC10H10(NO)4 is Tungsten structured and crystallizes in the orthorhombic Pbca space group. The structure is zero-dimensional and consists of four CuC10H10(NO)4 clusters. Cu(1) is bonded in a square co-planar geometry to two equivalent N(2) and two equivalent O(1) atoms. Both Cu(1)-N(2) bond lengths are 1.98 Å. Both Cu(1)-O(1) bond lengths are 1.98 Å. There are five inequivalent C sites. In the first C site, C(4) is bonded in a distorted bent 120 degrees geometry to one C(5), one N(2), and one H(4) atom. The C(4)-C(5) bond length is 1.37 Å. The C(4)-N(2) bond length is 1.39 Å. The C(4)-H(4) bond length is 1.08 Å. In the second C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(2) bond length is 1.25 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(3) atom. The C(3)-N(1) bond length is 1.35 Å. The C(3)-N(2) bond length is 1.34 Å. The C(3)-H(3) bond length is 1.08 Å. In the fourth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(1), and one H(5) atom. The C(5)-N(1) bond length is 1.38 Å. The C(5)-H(5) bond length is 1.08 Å. In the fifth C site, C(2) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(1), and one H(2) atom. The C(2)-N(1) bond length is 1.45 Å. The C(2)-H(1) bond length is 1.10 Å. The C(2)-H(2) bond length is 1.10 Å. There are two inequivalent N sites. In the first N site, N(2) is bonded in a trigonal planar geometry to one Cu(1), one C(3), and one C(4) atom. In the second N site, N(1) is bonded in a trigonal planar geometry to one C(2), one C(3), and one C(5) atom. There are five 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(5) is bonded in a single-bond geometry to one C(5) atom. In the third H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one C(1) atom. Linkers: 4 [O]C(=O)Cn1ccnc1. Metal clusters: 2 O=[C]O[Cu]O[C]=O. The MOF has largest included sphere 2.34 A, density 1.79 g/cm3, surface area 3869.67 m2/g, accessible volume 0.09 cm3/g