CoH4(C5O2)2(CH)2 crystallizes in the monoclinic P2_1/c space group. The structure consists of eight 02329_fluka molecules inside a CoH4(C5O2)2 framework. In the CoH4(C5O2)2 framework, there are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a square co-planar geometry to two equivalent O(1) and two equivalent O(3) atoms. Both Co(1)-O(1) bond lengths are 2.10 Å. Both Co(1)-O(3) bond lengths are 2.00 Å. In the second Co site, Co(2) is bonded in a square co-planar geometry to two equivalent O(2) and two equivalent O(4) atoms. Both Co(2)-O(2) bond lengths are 2.12 Å. Both Co(2)-O(4) bond lengths are 2.04 Å. There are ten inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(5), one C(6), and one C(8) atom. The C(1)-C(5) bond length is 1.44 Å. The C(1)-C(6) bond length is 1.52 Å. The C(1)-C(8) bond length is 1.37 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(4) and one H(5) atom. The C(2)-C(4) bond length is 1.37 Å. The C(2)-H(5) bond length is 1.00 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(10), one C(4), and one C(5) atom. The C(3)-C(10) bond length is 1.42 Å. The C(3)-C(4) bond length is 1.43 Å. The C(3)-C(5) bond length is 1.43 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(2), one C(3), and one C(7) atom. The C(4)-C(7) bond length is 1.51 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(1), one C(11), and one C(3) atom. The C(5)-C(11) bond length is 1.42 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(4) atom. The C(6)-O(1) bond length is 1.26 Å. The C(6)-O(4) bond length is 1.25 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(2), and one O(3) atom. The C(7)-O(2) bond length is 1.26 Å. The C(7)-O(3) bond length is 1.25 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(1) and one H(6) atom. The C(8)-H(6) bond length is 0.97 Å. In the ninth C site, C(10) is bonded in a distorted single-bond geometry to one C(3) and one H(2) atom. The C(10)-H(2) bond length is 0.93 Å. In the tenth C site, C(11) is bonded in a distorted single-bond geometry to one C(5) and one H(3) atom. The C(11)-H(3) bond length is 0.93 Å. There are four inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one C(10) atom. In the second H site, H(3) is bonded in a single-bond geometry to one C(11) atom. In the third H site, H(5) is bonded in a single-bond geometry to one C(2) atom. In the fourth H site, H(6) is bonded in a single-bond geometry to one C(8) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one C(6) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one C(7) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one C(7) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one C(6) atom. Linkers: 4 [O]C(=O)c1ccc(C([O])=O)c2ccccc12. Metal clusters: 4 [Co]. RCSR code: lvt. The MOF has largest included sphere 4.71 A, density 1.24 g/cm3, surface area 3824.46 m2/g, accessible volume 0.36 cm3/g