CoC11N7H10O2 crystallizes in the monoclinic P2_1/c space group. Co(1) is bonded to one N(4), one N(5), two equivalent N(2), one O(1), and one O(2) atom to form edge-sharing CoN4O2 octahedra. The Co(1)-N(4) bond length is 2.09 Å. The Co(1)-N(5) bond length is 2.07 Å. There is one shorter (2.03 Å) and one longer (2.09 Å) Co(1)-N(2) bond length. The Co(1)-O(1) bond length is 2.14 Å. The Co(1)-O(2) bond length is 2.38 Å. There are eleven inequivalent C sites. In the first C site, C(1) is bonded in a bent 120 degrees geometry to one C(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(5), and one C(8) atom. The C(2)-C(5) bond length is 1.40 Å. The C(2)-C(8) bond length is 1.40 Å. In the third C site, C(3) is bonded in a tetrahedral geometry to one N(1), one N(3), one H(1), and one H(2) atom. The C(3)-N(1) bond length is 1.45 Å. The C(3)-N(3) bond length is 1.45 Å. The C(3)-H(1) bond length is 1.09 Å. The C(3)-H(2) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(9), one N(4), and one H(3) atom. The C(4)-C(9) bond length is 1.37 Å. The C(4)-N(4) bond length is 1.38 Å. The C(4)-H(3) bond length is 1.08 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(2), one C(8), and one H(4) atom. The C(5)-C(8) bond length is 1.39 Å. The C(5)-H(4) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one N(1), one N(4), and one H(5) atom. The C(6)-N(1) bond length is 1.36 Å. The C(6)-N(4) bond length is 1.33 Å. The C(6)-H(5) bond length is 1.08 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one N(3), one N(5), and one H(6) atom. The C(7)-N(3) bond length is 1.36 Å. The C(7)-N(5) bond length is 1.33 Å. The C(7)-H(6) bond length is 1.08 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(2), one C(5), and one H(7) atom. The C(8)-H(7) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(4), one N(1), and one H(8) atom. The C(9)-N(1) bond length is 1.38 Å. The C(9)-H(8) bond length is 1.08 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(11), one N(3), and one H(9) atom. The C(10)-C(11) bond length is 1.37 Å. The C(10)-N(3) bond length is 1.39 Å. The C(10)-H(9) bond length is 1.08 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(10), one N(5), and one H(10) atom. The C(11)-N(5) bond length is 1.39 Å. The C(11)-H(10) bond length is 1.08 Å. There are seven inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(3), one C(6), and one C(9) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to two equivalent Co(1) and one N(6) atom. The N(2)-N(6) bond length is 1.21 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one C(10), one C(3), and one C(7) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one Co(1), one C(4), and one C(6) atom. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one Co(1), one C(11), and one C(7) atom. In the sixth N site, N(6) is bonded in a linear geometry to one N(2) and one N(7) atom. The N(6)-N(7) bond length is 1.17 Å. In the seventh N site, N(7) is bonded in a single-bond geometry to one N(6) atom. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) 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(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(5) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(6) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(7) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(8) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(9) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(10) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(11) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted L-shaped geometry to one Co(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Co(1) and one C(1) atom. Linkers: 4 c1cn(Cn2ccnc2)cn1 ,2 [O]C(=O)c1ccc(C([O])=O)cc1. Metal clusters: 4 [Co]. The MOF has largest included sphere 3.12 A, density 1.61 g/cm3, surface area 4092.97 m2/g, accessible volume 0.19 cm3/g