CuC10H8(N2O)5H2O is Indium-derived structured and crystallizes in the orthorhombic Cmc2_1 space group. The structure is zero-dimensional and consists of four water molecules and four CuC10H8(N2O)5 clusters. In each CuC10H8(N2O)5 cluster, Cu(1) is bonded in a distorted square pyramidal geometry to two equivalent N(2), one O(3), and two equivalent O(1) atoms. Both Cu(1)-N(2) bond lengths are 1.99 Å. The Cu(1)-O(3) bond length is 2.29 Å. Both Cu(1)-O(1) bond lengths are 1.99 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one N(1) atom. The C(1)-C(1) bond length is 1.42 Å. The C(1)-C(5) bond length is 1.47 Å. The C(1)-N(1) bond length is 1.34 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(2)-N(1) bond length is 1.34 Å. The C(2)-H(1) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted trigonal non-coplanar geometry to one N(5), one H(2), and one H(3) atom. The C(3)-N(5) bond length is 1.44 Å. The C(3)-H(2) bond length is 1.10 Å. The C(3)-H(3) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(4)-O(1) bond length is 1.28 Å. The C(4)-O(2) bond length is 1.25 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(1), one N(2), and one N(5) atom. The C(5)-N(2) bond length is 1.34 Å. The C(5)-N(5) bond length is 1.36 Å. There are five inequivalent N sites. In the first N site, N(4) is bonded in a water-like geometry to one N(3) and one N(5) atom. The N(4)-N(3) bond length is 1.30 Å. The N(4)-N(5) bond length is 1.35 Å. In the second N site, N(5) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one N(4) atom. In the third N site, N(3) is bonded in a water-like geometry to one N(2) and one N(4) atom. The N(3)-N(2) bond length is 1.35 Å. In the fourth N site, N(1) is bonded in a bent 120 degrees geometry to one C(1) and one C(2) atom. In the fifth N site, N(2) is bonded in a distorted trigonal planar geometry to one Cu(1), one C(5), and one N(3) atom. There are four 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(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a distorted single-bond geometry to one O(2) and one O(3) atom. The H(4)-O(2) bond length is 1.63 Å. The H(4)-O(3) bond length is 1.01 Å. There are three inequivalent O sites. In the first O site, O(2) is bonded in a water-like geometry to one C(4) and one H(4) atom. In the second O site, O(3) is bonded in a water-like geometry to one Cu(1) and two equivalent H(4) atoms. In the third O site, O(1) is bonded in a bent 120 degrees geometry to one Cu(1) and one C(4) atom. Linkers: 2 [O]C(=O)Cn1nnnc1-c1nccnc1-c1nnnn1CC([O])=O. Metal clusters: 2 O.O=[C]O[Cu]O[C]=O. The MOF has largest included sphere 2.13 A, density 1.88 g/cm3, surface area 4127.66 m2/g, accessible volume 0.08 cm3/g