Ba2CoH14(C3O8)2 crystallizes in the triclinic P-1 space group. Ba(1) is bonded in a 10-coordinate geometry to one O(1), one O(2), one O(4), one O(5), two equivalent O(3), two equivalent O(7), and two equivalent O(8) atoms. The Ba(1)-O(1) bond length is 2.82 Å. The Ba(1)-O(2) bond length is 2.87 Å. The Ba(1)-O(4) bond length is 2.85 Å. The Ba(1)-O(5) bond length is 3.00 Å. There is one shorter (2.88 Å) and one longer (2.90 Å) Ba(1)-O(3) bond length. There is one shorter (2.83 Å) and one longer (2.90 Å) Ba(1)-O(7) bond length. There is one shorter (2.82 Å) and one longer (2.87 Å) Ba(1)-O(8) bond length. Co(1) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms. Both Co(1)-O(1) bond lengths are 1.93 Å. Both Co(1)-O(4) bond lengths are 1.94 Å. Both Co(1)-O(5) bond lengths are 2.24 Å. There are three inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one H(1), one O(1), and one O(2) atom. The C(1)-H(1) bond length is 1.11 Å. The C(1)-O(1) bond length is 1.29 Å. The C(1)-O(2) bond length is 1.26 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one H(2), one O(3), and one O(4) atom. The C(2)-H(2) bond length is 1.11 Å. The C(2)-O(3) bond length is 1.25 Å. The C(2)-O(4) bond length is 1.29 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one H(3), one O(5), and one O(6) atom. The C(3)-H(3) bond length is 1.11 Å. The C(3)-O(5) bond length is 1.27 Å. The C(3)-O(6) bond length is 1.28 Å. There are seven 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 O(7) atom. The H(4)-O(7) bond length is 0.98 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(7) atom. The H(5)-O(7) bond length is 0.99 Å. In the sixth H site, H(6) is bonded in a single-bond geometry to one O(8) atom. The H(6)-O(8) bond length is 0.99 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(8) atom. The H(7)-O(8) bond length is 1.00 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one Co(1), and one C(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Ba(1) and one C(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to two equivalent Ba(1) and one C(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ba(1), one Co(1), and one C(2) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Ba(1), one Co(1), and one C(3) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(3) atom. In the seventh O site, O(7) is bonded in a water-like geometry to two equivalent Ba(1), one H(4), and one H(5) atom. In the eighth O site, O(8) is bonded in a water-like geometry to two equivalent Ba(1), one H(6), and one H(7) atom. Linkers: 4 O ,6 [O]C=O. Metal clusters: 2 [Ba] ,1 [Co]. The MOF has largest included sphere 1.36 A, density 2.79 g/cm3, surface area 2392.64 m2/g, accessible volume 0.05 cm3/g