Co3C16P4H22(NO10)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(4), one O(5), one O(8), and one O(9) atom to form CoO5 trigonal bipyramids that share  a cornercorner with one P(1)CO3 tetrahedra and corners with two equivalent P(2)CO3 tetrahedra. The Co(1)-O(3) bond length is 2.01 Å. The Co(1)-O(4) bond length is 2.05 Å. The Co(1)-O(5) bond length is 1.97 Å. The Co(1)-O(8) bond length is 2.02 Å. The Co(1)-O(9) bond length is 2.22 Å. In the second Co site, Co(2) is bonded to two equivalent O(10), two equivalent O(2), and two equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent P(1)CO3 tetrahedra and corners with two equivalent P(2)CO3 tetrahedra. Both Co(2)-O(10) bond lengths are 1.97 Å. Both Co(2)-O(2) bond lengths are 2.12 Å. Both Co(2)-O(6) bond lengths are 1.94 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted tetrahedral geometry to one C(2), one P(1), one P(2), and one O(7) atom. The C(1)-C(2) bond length is 1.55 Å. The C(1)-P(1) bond length is 1.87 Å. The C(1)-P(2) bond length is 1.86 Å. The C(1)-O(7) bond length is 1.43 Å. In the second C site, C(2) is bonded in a distorted water-like geometry to one C(1), one C(3), one H(6), and one H(7) atom. The C(2)-C(3) bond length is 1.50 Å. The C(2)-H(6) bond length is 1.10 Å. The C(2)-H(7) bond length is 1.10 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(7) atom. The C(3)-C(4) bond length is 1.41 Å. The C(3)-C(7) bond length is 1.39 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(8) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(8) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(4), one C(6), and one H(9) atom. The C(5)-C(6) bond length is 1.39 Å. The C(5)-H(9) bond length is 1.09 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5), one N(1), and one H(10) atom. The C(6)-N(1) bond length is 1.35 Å. The C(6)-H(10) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(3), one N(1), and one H(11) atom. The C(7)-N(1) bond length is 1.35 Å. The C(7)-H(11) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(8) and one O(9) atom. The C(8)-O(8) bond length is 1.29 Å. The C(8)-O(9) bond length is 1.25 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one C(1), one O(1), one O(2), and one O(3) atom to form PCO3 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one P(2)CO3 tetrahedra, and  a cornercorner with one Co(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 44°. The P(1)-O(1) bond length is 1.58 Å. The P(1)-O(2) bond length is 1.51 Å. The P(1)-O(3) bond length is 1.55 Å. In the second P site, P(2) is bonded to one C(1), one O(4), one O(5), and one O(6) atom to form PCO3 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra,  a cornercorner with one P(1)CO3 tetrahedra, and corners with two equivalent Co(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 54°. The P(2)-O(4) bond length is 1.55 Å. The P(2)-O(5) bond length is 1.55 Å. The P(2)-O(6) bond length is 1.53 Å. N(1) is bonded in a trigonal planar geometry to one C(6), one C(7), and one H(5) atom. The N(1)-H(5) bond length is 1.05 Å. There are eleven inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to one O(1) and one O(3) atom. The H(1)-O(1) bond length is 1.03 Å. The H(1)-O(3) bond length is 1.51 Å. In the second H site, H(2) is bonded in a distorted single-bond geometry to one O(4) and one O(7) atom. The H(2)-O(4) bond length is 1.68 Å. The H(2)-O(7) bond length is 1.00 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(10) atom. The H(3)-O(10) bond length is 0.98 Å. In the fourth H site, H(4) is bonded in a distorted linear geometry to one O(10) and one O(8) atom. The H(4)-O(10) bond length is 1.01 Å. The H(4)-O(8) bond length is 1.63 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one N(1) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(2) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(2) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(4) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(5) 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 C(7) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one P(1) and one H(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Co(2) and one P(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Co(1), one P(1), and one H(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Co(1), one P(2), and one H(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Co(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one C(1) and one H(2) atom. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one Co(1), one C(8), and one H(4) atom. In the ninth O site, O(9) is bonded in a distorted water-like geometry to one Co(1) and one C(8) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Co(2), one H(3), and one H(4) atom. Linkers: 2 [O]P([O])(=O)C(O)(CC1=CN[CH]C=C1)P([O])(=O)O ,1 [O]C(=O)C([O])=O. Metal clusters: 3 [Co]. The MOF has largest included sphere 1.94 A, density 2.21 g/cm3, surface area 2861.79 m2/g, accessible volume 0.09 cm3/g