CuH4(C4O5)2(CuC5N2H4O)2 is Indium-like structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one CuC5N2H4O cluster and one CuH4(C4O5)2 cluster. In the CuC5N2H4O cluster, Cu(2) is bonded to one N(1), one N(2), and two equivalent O(1) atoms to form distorted edge-sharing CuN2O2 trigonal pyramids. The Cu(2)-N(1) bond length is 1.91 Å. The Cu(2)-N(2) bond length is 1.91 Å. There is one shorter (2.24 Å) and one longer (2.29 Å) Cu(2)-O(1) bond length. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one O(1) atom. The C(1)-O(1) bond length is 1.26 Å. In the second C site, C(6) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(1) atom. The C(6)-N(1) bond length is 1.35 Å. The C(6)-H(1) bond length is 1.09 Å. In the third C site, C(7) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(2) atom. The C(7)-N(2) bond length is 1.35 Å. The C(7)-H(2) bond length is 1.09 Å. In the fourth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(3) atom. The C(8)-N(2) bond length is 1.36 Å. The C(8)-H(3) bond length is 1.09 Å. In the fifth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(4) atom. The C(9)-N(1) bond length is 1.36 Å. The C(9)-H(4) bond length is 1.09 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cu(2), one C(6), and one C(9) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Cu(2), one C(7), and one C(8) atom. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(6) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(7) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(8) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(9) atom. O(1) is bonded in a distorted trigonal planar geometry to two equivalent Cu(2) and one C(1) atom. In the CuH4(C4O5)2 cluster, Cu(1) is bonded in an octahedral geometry to two equivalent O(2), two equivalent O(3), and two equivalent O(6) atoms. Both Cu(1)-O(2) bond lengths are 2.45 Å. Both Cu(1)-O(3) bond lengths are 2.11 Å. Both Cu(1)-O(6) bond lengths are 1.94 Å. There are four inequivalent C sites. In the first C site, C(2) is bonded in a single-bond geometry to one O(2) atom. The C(2)-O(2) bond length is 1.25 Å. In the second C site, C(3) is bonded in a distorted single-bond geometry to one O(3) atom. The C(3)-O(3) bond length is 1.26 Å. In the third C site, C(4) is bonded in a distorted single-bond geometry to one O(4) atom. The C(4)-O(4) bond length is 1.25 Å. In the fourth C site, C(5) is bonded in a single-bond geometry to one O(5) atom. The C(5)-O(5) bond length is 1.26 Å. There are two inequivalent H sites. In the first H site, H(5) is bonded in a distorted linear geometry to one O(5) and one O(6) atom. The H(5)-O(5) bond length is 1.63 Å. The H(5)-O(6) bond length is 1.00 Å. In the second H site, H(6) is bonded in a distorted single-bond geometry to one O(4) and one O(6) atom. The H(6)-O(4) bond length is 1.65 Å. The H(6)-O(6) bond length is 1.00 Å. There are five inequivalent O sites. In the first O site, O(2) is bonded in a distorted single-bond geometry to one Cu(1) and one C(2) atom. In the second O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(3) atom. In the third O site, O(4) is bonded in a bent 120 degrees geometry to one C(4) and one H(6) atom. In the fourth O site, O(5) is bonded in a bent 120 degrees geometry to one C(5) and one H(5) atom. In the fifth O site, O(6) is bonded in a distorted trigonal planar geometry to one Cu(1), one H(5), and one H(6) atom. Linkers: 2 c1cnccn1. Metal clusters: 3 [Cu]. The MOF has largest included sphere 1.81 A, density 2.18 g/cm3, surface area 3324.40 m2/g, accessible volume 0.06 cm3/g