CoC12H8(N2O)2 crystallizes in the monoclinic P2_1/c space group. Co(1) is bonded in an octahedral geometry to two equivalent N(1), two equivalent N(2), and two equivalent O(1) atoms. Both Co(1)-N(1) bond lengths are 2.31 Å. Both Co(1)-N(2) bond lengths are 1.92 Å. Both Co(1)-O(1) bond lengths are 1.91 Å. There are six inequivalent C sites. In the first C site, C(5) is bonded in a distorted trigonal planar geometry to one C(6), one N(1), and one H(3) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-N(1) bond length is 1.35 Å. The C(5)-H(3) bond length is 1.09 Å. In the second C site, C(6) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(4) atom. The C(6)-C(3) bond length is 1.40 Å. The C(6)-H(4) bond length is 1.09 Å. In the third C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(2), and one O(1) atom. The C(1)-C(3) bond length is 1.48 Å. The C(1)-N(2) bond length is 1.32 Å. The C(1)-O(1) bond length is 1.30 Å. In the fourth C site, C(2) is bonded in a distorted single-bond geometry to one C(3) and one H(1) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(1) bond length is 1.09 Å. In the fifth C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(2), and one C(6) atom. In the sixth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(2) atom. The C(4)-N(1) bond length is 1.35 Å. The C(4)-H(2) bond length is 1.09 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Co(1), one C(4), and one C(5) atom. In the second N site, N(2) is bonded in a 3-coordinate geometry to one Co(1), one C(1), and one N(2) atom. The N(2)-N(2) bond length is 1.42 Å. 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(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(6) atom. O(1) is bonded in a water-like geometry to one Co(1) and one C(1) atom. Linkers: 2 O=C([N][N]C(=O)c1ccncc1)c1c[c]ncc1 ,2 O=C([N][N]C(=O)c1ccncc1)c1ccncc1. Metal clusters: 2 [Co]. The MOF has largest included sphere 2.70 A, density 1.80 g/cm3, surface area 3287.81 m2/g, accessible volume 0.09 cm3/g