Co2C10N5H6O4Cl(CH)2 crystallizes in the trigonal R-3 space group. The structure consists of thirty-six 02329_fluka molecules inside a Co2C10N5H6O4Cl framework. In the Co2C10N5H6O4Cl framework, there are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one N(2), two equivalent N(3), one O(1), one O(2), and one Cl(1) atom to form CoN3ClO2 octahedra that share  a cornercorner with one Co(2)N2ClO2 square pyramid,  an edgeedge with one Co(1)N3ClO2 octahedra, and  an edgeedge with one Co(2)N2ClO2 square pyramid. The Co(1)-N(2) bond length is 2.12 Å. There is one shorter (2.17 Å) and one longer (2.20 Å) Co(1)-N(3) bond length. The Co(1)-O(1) bond length is 2.06 Å. The Co(1)-O(2) bond length is 2.08 Å. The Co(1)-Cl(1) bond length is 2.49 Å. In the second Co site, Co(2) is bonded to one N(1), one N(3), one O(3), one O(4), and one Cl(1) atom to form a mixture of distorted edge and corner-sharing CoN2ClO2 square pyramids. The corner-sharing octahedral tilt angles are 62°. The Co(2)-N(1) bond length is 2.17 Å. The Co(2)-N(3) bond length is 2.17 Å. The Co(2)-O(3) bond length is 2.03 Å. The Co(2)-O(4) bond length is 2.02 Å. The Co(2)-Cl(1) bond length is 2.50 Å. There are ten inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(7), and one C(9) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(7) bond length is 1.53 Å. The C(1)-C(9) bond length is 1.37 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one N(1), and one H(1) atom. The C(2)-N(1) bond length is 1.34 Å. The C(2)-H(1) bond length is 0.93 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(10), one C(5), and one C(8) atom. The C(3)-C(10) bond length is 1.51 Å. The C(3)-C(5) bond length is 1.38 Å. The C(3)-C(8) bond length is 1.37 Å. In the fourth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(2), and one H(3) atom. The C(5)-N(2) bond length is 1.34 Å. The C(5)-H(3) bond length is 0.93 Å. In the fifth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one N(2) and one H(4) atom. The C(6)-N(2) bond length is 1.33 Å. The C(6)-H(4) bond length is 0.93 Å. In the sixth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(2), and one O(4) atom. The C(7)-O(2) bond length is 1.23 Å. The C(7)-O(4) bond length is 1.25 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(3) and one H(5) atom. The C(8)-H(5) bond length is 0.93 Å. In the eighth C site, C(9) is bonded in a distorted single-bond geometry to one C(1) and one H(6) atom. The C(9)-H(6) bond length is 0.93 Å. In the ninth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(3) atom. The C(10)-O(1) bond length is 1.24 Å. The C(10)-O(3) bond length is 1.25 Å. In the tenth C site, C(12) is bonded in a distorted bent 120 degrees geometry to one N(1) and one H(8) atom. The C(12)-N(1) bond length is 1.33 Å. The C(12)-H(8) bond length is 0.93 Å. There are five inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Co(2), one C(12), and one C(2) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one Co(1), one C(5), and one C(6) atom. In the third N site, N(3) is bonded to one Co(2), two equivalent Co(1), and one N(4) atom to form edge-sharing NCo3N tetrahedra. The N(3)-N(4) bond length is 1.24 Å. In the fourth N site, N(4) is bonded in a linear geometry to one N(3) and one N(5) atom. The N(4)-N(5) bond length is 1.11 Å. In the fifth N site, N(5) is bonded in a single-bond geometry to one N(4) atom. There are six 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(3) is bonded in a single-bond geometry to one C(5) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. In the sixth H site, H(8) is bonded in a single-bond geometry to one C(12) atom. There are four 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(10) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Co(1) and one C(7) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one C(10) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Co(2) and one C(7) atom. Cl(1) is bonded in an L-shaped geometry to one Co(1) and one Co(2) atom. Linkers: 12 [O]C(=O)c1cccnc1. Metal clusters: 12 [Co]. The MOF has largest included sphere 7.64 A, density 1.65 g/cm3, surface area 3341.86 m2/g, accessible volume 0.21 cm3/g