Zn(PO4)2 crystallizes in the monoclinic Pc space group. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(1), one O(5), one O(7), and one O(9) atom to form ZnO4 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 Zn(1)-O(1) bond length is 1.93 Å. The Zn(1)-O(5) bond length is 1.94 Å. The Zn(1)-O(7) bond length is 1.93 Å. The Zn(1)-O(9) bond length is 1.93 Å. In the second Zn site, Zn(2) is bonded to one O(10), one O(13), one O(16), and one O(2) atom to form ZnO4 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(4)O4 tetrahedra. The Zn(2)-O(10) bond length is 1.93 Å. The Zn(2)-O(13) bond length is 1.93 Å. The Zn(2)-O(16) bond length is 1.92 Å. The Zn(2)-O(2) bond length is 1.95 Å. There are four 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(4) atom to form PO4 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra and  a cornercorner with one Zn(2)O4 tetrahedra. The P(1)-O(1) bond length is 1.51 Å. The P(1)-O(2) bond length is 1.51 Å. The P(1)-O(3) bond length is 1.57 Å. The P(1)-O(4) bond length is 1.54 Å. In the second P site, P(2) is bonded to one O(5), one O(6), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Zn(1)O4 tetrahedra. The P(2)-O(5) bond length is 1.50 Å. The P(2)-O(6) bond length is 1.56 Å. The P(2)-O(7) bond length is 1.49 Å. The P(2)-O(8) bond length is 1.56 Å. In the third P site, P(3) is bonded to one O(10), one O(11), one O(12), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra and  a cornercorner with one Zn(2)O4 tetrahedra. The P(3)-O(10) bond length is 1.51 Å. The P(3)-O(11) bond length is 1.57 Å. The P(3)-O(12) bond length is 1.55 Å. The P(3)-O(9) bond length is 1.51 Å. In the fourth P site, P(4) is bonded to one O(13), one O(14), one O(15), and one O(16) atom to form PO4 tetrahedra that share corners with two equivalent Zn(2)O4 tetrahedra. The P(4)-O(13) bond length is 1.49 Å. The P(4)-O(14) bond length is 1.56 Å. The P(4)-O(15) bond length is 1.58 Å. The P(4)-O(16) bond length is 1.50 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one P(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one P(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one P(1) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Zn(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one P(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Zn(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one P(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Zn(2) and one P(3) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one P(3) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Zn(2) and one P(4) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one P(4) atom. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one P(4) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Zn(2) and one P(4) atom. Linkers: 8 [O]P([O])([O])=O. Metal clusters: 4 [Zn]. RCSR code: dia. The MOF has largest included sphere 4.95 A, density 1.43 g/cm3, surface area 3434.80 m2/g, accessible volume 0.36 cm3/g