CuH8(C2N)4InH8(C2O)8 is Indium-derived structured and crystallizes in the orthorhombic Fddd space group. The structure is zero-dimensional and consists of eight CuH8(C2N)4 clusters and eight InH8(C2O)8 clusters. In each CuH8(C2N)4 cluster, Cu(1) is bonded in a distorted tetrahedral geometry to four equivalent N(1) atoms. All Cu(1)-N(1) bond lengths are 2.02 Å. There are two inequivalent C sites. In the first C site, C(3) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(3) atom. The C(3)-N(1) bond length is 1.35 Å. The C(3)-H(3) bond length is 1.09 Å. In the second C site, C(4) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(4) atom. The C(4)-N(1) bond length is 1.35 Å. The C(4)-H(4) bond length is 1.09 Å. N(1) is bonded in a trigonal planar geometry to one Cu(1), one C(3), and one C(4) atom. There are two inequivalent H sites. In the first H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In each InH8(C2O)8 cluster, In(1) is bonded in a 8-coordinate geometry to four equivalent O(1) and four equivalent O(2) atoms. All In(1)-O(1) bond lengths are 2.30 Å. All In(1)-O(2) bond lengths are 2.35 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a distorted single-bond geometry to one C(6) and one H(1) atom. The C(1)-C(6) bond length is 1.40 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(5) is bonded in a bent 120 degrees geometry to one C(6), one O(1), and one O(2) atom. The C(5)-C(6) bond length is 1.49 Å. The C(5)-O(1) bond length is 1.28 Å. The C(5)-O(2) bond length is 1.28 Å. In the third C site, C(2) is bonded in a distorted single-bond geometry to one C(6) and one H(2) atom. The C(2)-C(6) bond length is 1.40 Å. The C(2)-H(2) bond length is 1.09 Å. In the fourth C site, C(6) is bonded in a trigonal planar geometry to one C(1), one C(2), and one C(5) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in an L-shaped geometry to one In(1) and one C(5) atom. In the second O site, O(1) is bonded in an L-shaped geometry to one In(1) and one C(5) atom. Linkers: 2 [O]C(=O)C1=C[CH]N([Cu](N2[CH]C=C(C([O])=O)C=C2)(N2[CH]C=C(C([O])=O)C=C2)N2[CH]C=C(C([O])=O)C=C2)C=C1. Metal clusters: 2 O=[C]O[In](O[C]=O)O[C]=O.[O][C]=O. RCSR code: dia. The MOF has largest included sphere 5.63 A, density 1.28 g/cm3, surface area 4008.44 m2/g, accessible volume 0.45 cm3/g