CoC13NH8O5 crystallizes in the monoclinic P2/c space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles are 63°. Both Co(1)-O(1) bond lengths are 2.06 Å. Both Co(1)-O(3) bond lengths are 2.08 Å. Both Co(1)-O(4) bond lengths are 2.01 Å. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles are 63°. Both Co(2)-O(1) bond lengths are 2.08 Å. Both Co(2)-O(2) bond lengths are 2.02 Å. Both Co(2)-O(5) bond lengths are 2.06 Å. There are thirteen inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one N(1), and one H(1) atom. The C(1)-C(2) bond length is 1.38 Å. The C(1)-N(1) bond length is 1.36 Å. The C(1)-H(1) bond length is 1.09 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one H(2) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(2) bond length is 1.09 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(4), and one H(3) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(3) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(4) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(4) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(4), one C(5), and one N(1) atom. The C(5)-C(5) bond length is 1.47 Å. The C(5)-N(1) bond length is 1.37 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(7), one O(2), and one O(3) atom. The C(6)-C(7) bond length is 1.50 Å. The C(6)-O(2) bond length is 1.28 Å. The C(6)-O(3) bond length is 1.27 Å. In the seventh C site, C(7) is bonded in a trigonal planar geometry to one C(6), one C(8), and one C(9) atom. The C(7)-C(8) bond length is 1.40 Å. The C(7)-C(9) bond length is 1.40 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one C(9), and one H(5) atom. The C(8)-C(9) bond length is 1.39 Å. The C(8)-H(5) bond length is 1.09 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(7), one C(8), and one H(6) atom. The C(9)-H(6) bond length is 1.09 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(4), and one O(5) atom. The C(10)-C(11) bond length is 1.50 Å. The C(10)-O(4) bond length is 1.27 Å. The C(10)-O(5) bond length is 1.27 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(10), one C(12), and one C(13) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-C(13) bond length is 1.40 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(11), one C(13), and one H(7) atom. The C(12)-C(13) bond length is 1.39 Å. The C(12)-H(7) bond length is 1.09 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to one C(11), one C(12), and one H(8) atom. The C(13)-H(8) bond length is 1.09 Å. N(1) is bonded in a trigonal planar geometry to one C(1), one C(5), and one O(1) atom. The N(1)-O(1) bond length is 1.33 Å. There are eight 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. 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 single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(12) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(13) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Co(1), one Co(2), and one N(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Co(2) and one C(6) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one C(6) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Co(1) and one C(10) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one C(10) atom. Linkers: 4 [O]C(=O)c1ccc(C([O])=O)cc1 ,2 [O-][n+]1ccccc1-c1cccc[n+]1[O-]. Metal clusters: 4 [Co]. The MOF has largest included sphere 5.24 A, density 1.33 g/cm3, surface area 3574.36 m2/g, accessible volume 0.29 cm3/g