CoPO4 crystallizes in the tetragonal P-42_1c space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form CoO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. The Co(1)-O(1) bond length is 1.81 Å. The Co(1)-O(3) bond length is 1.88 Å. The Co(1)-O(4) bond length is 1.91 Å. The Co(1)-O(5) bond length is 1.94 Å. In the second Co site, Co(2) is bonded to four equivalent O(2) atoms to form CoO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. All Co(2)-O(2) bond lengths are 1.99 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra and corners with three equivalent Co(1)O4 tetrahedra. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.49 Å. The P(1)-O(3) bond length is 1.57 Å. The P(1)-O(5) bond length is 1.52 Å. In the second P site, P(2) is bonded to four equivalent O(4) atoms to form PO4 tetrahedra that share corners with four equivalent Co(1)O4 tetrahedra. All P(2)-O(4) bond lengths are 1.50 Å. There are five 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(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Co(2) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Co(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Co(1) and one P(1) atom. Linkers: 10 [O]P([O])([O])=O. Metal clusters: 10 [Co]. The MOF has largest included sphere 4.59 A, density 1.97 g/cm3, surface area 2245.21 m2/g, accessible volume 0.24 cm3/g