CoC11NH15O9 crystallizes in the triclinic P-1 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(7), and two equivalent O(8) atoms. Both Co(1)-O(1) bond lengths are 2.10 Å. Both Co(1)-O(7) bond lengths are 2.11 Å. Both Co(1)-O(8) bond lengths are 2.04 Å. In the second Co site, Co(2) is bonded in an octahedral geometry to two equivalent O(3), two equivalent O(4), and two equivalent O(9) atoms. Both Co(2)-O(3) bond lengths are 2.11 Å. Both Co(2)-O(4) bond lengths are 2.19 Å. Both Co(2)-O(9) bond lengths are 2.09 Å. There are eleven inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.40 Å. The C(1)-C(7) bond length is 1.50 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one H(8) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(8) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(8) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-C(8) bond length is 1.48 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(9) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(9) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(9) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(9) bond length is 1.50 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(10) atom. The C(6)-H(10) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.27 Å. The C(7)-O(2) bond length is 1.29 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.28 Å. The C(8)-O(4) bond length is 1.29 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(5), and one O(6) atom. The C(9)-O(5) bond length is 1.29 Å. The C(9)-O(6) bond length is 1.27 Å. In the tenth C site, C(10) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(12), and one H(13) atom. The C(10)-N(1) bond length is 1.49 Å. The C(10)-H(12) bond length is 1.10 Å. The C(10)-H(13) bond length is 1.10 Å. In the eleventh C site, C(11) is bonded in a distorted trigonal non-coplanar geometry to one N(1), one H(14), and one H(15) atom. The C(11)-N(1) bond length is 1.49 Å. The C(11)-H(14) bond length is 1.10 Å. The C(11)-H(15) bond length is 1.09 Å. N(1) is bonded in a tetrahedral geometry to one C(10), one C(11), one H(1), and one H(11) atom. The N(1)-H(1) bond length is 1.07 Å. The N(1)-H(11) bond length is 1.05 Å. There are fifteen inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one N(1) and one O(6) atom. The H(1)-O(6) bond length is 1.62 Å. In the second H site, H(2) is bonded in a distorted linear geometry to one O(5) and one O(7) atom. The H(2)-O(5) bond length is 1.61 Å. The H(2)-O(7) bond length is 1.01 Å. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(2) and one O(7) atom. The H(3)-O(2) bond length is 1.61 Å. The H(3)-O(7) bond length is 1.02 Å. In the fourth H site, H(4) is bonded in a distorted linear geometry to one O(5) and one O(8) atom. The H(4)-O(5) bond length is 1.59 Å. The H(4)-O(8) bond length is 1.01 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(4) and one O(8) atom. The H(5)-O(4) bond length is 1.67 Å. The H(5)-O(8) bond length is 1.00 Å. In the sixth H site, H(6) is bonded in a linear geometry to one O(2) and one O(9) atom. The H(6)-O(2) bond length is 1.56 Å. The H(6)-O(9) bond length is 1.02 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(9) atom. The H(7)-O(9) bond length is 0.98 Å. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(2) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(4) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(6) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one N(1) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(10) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(10) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(11) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(11) atom. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one C(7) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one C(7), one H(3), and one H(6) atom. In the third O site, O(3) is bonded in an L-shaped geometry to one Co(2) and one C(8) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Co(2), one C(8), and one H(5) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one C(9), one H(2), and one H(4) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one C(9) and one H(1) atom. In the seventh O site, O(7) is bonded in a distorted water-like geometry to one Co(1), one H(2), and one H(3) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one Co(1), one H(4), and one H(5) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Co(2), one H(6), and one H(7) atom. Linkers: 2 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 1 O.O.O.O.[O][C]O[Co]O[C][O] ,1 O.O.[C]1O[Co]2(O1)O[C]O2. The MOF has largest included sphere 3.18 A, density 1.74 g/cm3, surface area 3939.99 m2/g, accessible volume 0.13 cm3/g