Co2B15C6H15O7 is Tungsten structured and crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one Co2B15C6H15O7 cluster. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(4), one O(6), and two equivalent O(1) atoms to form edge-sharing CoO5 square pyramids. The Co(1)-O(3) bond length is 2.10 Å. The Co(1)-O(4) bond length is 2.06 Å. The Co(1)-O(6) bond length is 2.11 Å. There is one shorter (2.04 Å) and one longer (2.11 Å) Co(1)-O(1) bond length. In the second Co site, Co(2) is bonded in a see-saw-like geometry to one O(1), one O(2), one O(5), and one O(7) atom. The Co(2)-O(1) bond length is 2.01 Å. The Co(2)-O(2) bond length is 2.06 Å. The Co(2)-O(5) bond length is 2.12 Å. The Co(2)-O(7) bond length is 2.04 Å. There are fifteen inequivalent B sites. In the first B site, B(1) is bonded in a 2-coordinate geometry to one C(2) and one H(1,6,7) atom. The B(1)-C(2) bond length is 1.74 Å. The B(1)-H(1,6,7) bond length is 1.12 Å. In the second B site, B(2) is bonded in a 2-coordinate geometry to one C(2) and one H(2,5) atom. The B(2)-C(2) bond length is 1.72 Å. The B(2)-H(2,5) bond length is 1.12 Å. In the third B site, B(3) is bonded in a distorted bent 120 degrees geometry to one C(2) and one H(3) atom. The B(3)-C(2) bond length is 1.69 Å. The B(3)-H(3) bond length is 1.12 Å. In the fourth B site, B(4) is bonded in a 2-coordinate geometry to one C(2) and one H(4,8) atom. The B(4)-C(2) bond length is 1.71 Å. The B(4)-H(4,8) bond length is 1.12 Å. In the fifth B site, B(5) is bonded in a 2-coordinate geometry to one C(2) and one H(2,5) atom. The B(5)-C(2) bond length is 1.72 Å. The B(5)-H(2,5) bond length is 1.12 Å. In the sixth B site, B(6) is bonded in a distorted bent 120 degrees geometry to one C(4) and one H(1,6,7) atom. The B(6)-C(4) bond length is 1.70 Å. The B(6)-H(1,6,7) bond length is 1.12 Å. In the seventh B site, B(7) is bonded in a 2-coordinate geometry to one C(4) and one H(1,6,7) atom. The B(7)-C(4) bond length is 1.71 Å. The B(7)-H(1,6,7) bond length is 1.12 Å. In the eighth B site, B(8) is bonded in a 2-coordinate geometry to one C(4) and one H(4,8) atom. The B(8)-C(4) bond length is 1.71 Å. The B(8)-H(4,8) bond length is 1.12 Å. In the ninth B site, B(9) is bonded in a 2-coordinate geometry to one C(4) and one H(9,10) atom. The B(9)-C(4) bond length is 1.72 Å. The B(9)-H(9,10) bond length is 1.12 Å. In the tenth B site, B(10) is bonded in a 2-coordinate geometry to one C(4) and one H(9,10) atom. The B(10)-C(4) bond length is 1.72 Å. The B(10)-H(9,10) bond length is 1.12 Å. In the eleventh B site, B(11) is bonded in a 2-coordinate geometry to one C(6) and one H(11,12) atom. The B(11)-C(6) bond length is 1.72 Å. The B(11)-H(11,12) bond length is 1.12 Å. In the twelfth B site, B(12) is bonded in a 2-coordinate geometry to one C(6) and one H(11,12) atom. The B(12)-C(6) bond length is 1.72 Å. The B(12)-H(11,12) bond length is 1.12 Å. In the thirteenth B site, B(13) is bonded in a 2-coordinate geometry to one C(6) and one H(13) atom. The B(13)-C(6) bond length is 1.74 Å. The B(13)-H(13) bond length is 1.12 Å. In the fourteenth B site, B(14) is bonded in a distorted bent 120 degrees geometry to one C(6) and one H(14) atom. The B(14)-C(6) bond length is 1.72 Å. The B(14)-H(14) bond length is 1.12 Å. In the fifteenth B site, B(15) is bonded in a 2-coordinate geometry to one C(6) and one H(15) atom. The B(15)-C(6) bond length is 1.73 Å. The B(15)-H(15) bond length is 1.12 Å. There are six inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(2), and one O(3) atom. The C(1)-C(2) bond length is 1.54 Å. The C(1)-O(2) bond length is 1.27 Å. The C(1)-O(3) bond length is 1.25 Å. In the second C site, C(2) is bonded in a 6-coordinate geometry to one B(1), one B(2), one B(3), one B(4), one B(5), and one C(1) atom. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(4), and one O(5) atom. The C(3)-C(4) bond length is 1.54 Å. The C(3)-O(4) bond length is 1.26 Å. The C(3)-O(5) bond length is 1.24 Å. In the fourth C site, C(4) is bonded in a 6-coordinate geometry to one B(10), one B(6), one B(7), one B(8), one B(9), and one C(3) atom. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(6), one O(6), and one O(7) atom. The C(5)-C(6) bond length is 1.47 Å. The C(5)-O(6) bond length is 1.29 Å. The C(5)-O(7) bond length is 1.26 Å. In the sixth C site, C(6) is bonded in a distorted hexagonal planar geometry to one B(11), one B(12), one B(13), one B(14), one B(15), and one C(5) atom. There are nine inequivalent H sites. In the first H site, H(1,6,7) is bonded in a single-bond geometry to one B(1) atom. In the second H site, H(2,5) is bonded in a single-bond geometry to one B(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one B(3) atom. In the fourth H site, H(4,8) is bonded in a single-bond geometry to one B(4) atom. In the fifth H site, H(9,10) is bonded in a single-bond geometry to one B(9) atom. In the sixth H site, H(11,12) is bonded in a single-bond geometry to one B(11) atom. In the seventh H site, H(13) is bonded in a single-bond geometry to one B(13) atom. In the eighth H site, H(14) is bonded in a single-bond geometry to one B(14) atom. In the ninth H site, H(15) is bonded in a single-bond geometry to one B(15) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Co(2) and two equivalent Co(1) atoms. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Co(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one C(3) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Co(2) and one C(3) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one C(5) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Co(2) and one C(5) atom. Linkers: 6 [C]C([O])=O. Metal clusters: 4 [Co]. The MOF has largest included sphere 4.92 A, density 1.03 g/cm3, surface area 3742.32 m2/g, accessible volume 0.52 cm3/g