Co2(PO4)3 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(1), one O(2), one O(3), and one O(4) atom to form CoO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The Co(1)-O(1) bond length is 1.93 Å. The Co(1)-O(2) bond length is 1.95 Å. The Co(1)-O(3) bond length is 1.99 Å. The Co(1)-O(4) bond length is 1.93 Å. In the second Co site, Co(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form CoO4 tetrahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The Co(2)-O(5) bond length is 1.97 Å. The Co(2)-O(6) bond length is 1.93 Å. The Co(2)-O(7) bond length is 1.92 Å. The Co(2)-O(8) bond length is 1.97 Å. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(3), one O(6), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra and  a cornercorner with one Co(2)O4 tetrahedra. The P(1)-O(10) bond length is 1.59 Å. The P(1)-O(3) bond length is 1.53 Å. The P(1)-O(6) bond length is 1.52 Å. The P(1)-O(9) bond length is 1.52 Å. In the second P site, P(2) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Co(1)O4 tetrahedra and corners with two equivalent Co(2)O4 tetrahedra. The P(2)-O(11) bond length is 1.59 Å. The P(2)-O(2) bond length is 1.50 Å. The P(2)-O(5) bond length is 1.52 Å. The P(2)-O(8) bond length is 1.54 Å. In the third P site, P(3) is bonded to one O(1), one O(12), one O(4), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra and corners with two equivalent Co(1)O4 tetrahedra. The P(3)-O(1) bond length is 1.52 Å. The P(3)-O(12) bond length is 1.59 Å. The P(3)-O(4) bond length is 1.52 Å. The P(3)-O(7) bond length is 1.51 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Co(1) and one P(3) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Co(1) and one P(2) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Co(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Co(1) and one P(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Co(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Co(2) and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Co(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Co(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a single-bond geometry to one P(1) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one P(1) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one P(2) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one P(3) atom. Linkers: 6 [O]P([O])([O])=O. Metal clusters: 4 [Co]. The MOF has largest included sphere 4.92 A, density 1.71 g/cm3, surface area 2985.73 m2/g, accessible volume 0.29 cm3/g