MnPO4 crystallizes in the tetragonal P4_2 space group. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), and one O(5) atom to form MnO4 tetrahedra that share  a cornercorner with one P(2)O4 tetrahedra and corners with three equivalent P(1)O4 tetrahedra. The Mn(1)-O(1) bond length is 2.01 Å. The Mn(1)-O(2) bond length is 2.00 Å. The Mn(1)-O(3) bond length is 2.03 Å. The Mn(1)-O(5) bond length is 2.06 Å. In the second Mn site, Mn(2) is bonded to one O(13), one O(6), one O(8), and one O(9) atom to form MnO4 tetrahedra that share  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The Mn(2)-O(13) bond length is 2.01 Å. The Mn(2)-O(6) bond length is 2.04 Å. The Mn(2)-O(8) bond length is 1.99 Å. The Mn(2)-O(9) bond length is 2.03 Å. In the third Mn site, Mn(3) is bonded to one O(10), one O(11), one O(12), and one O(15) atom to form MnO4 tetrahedra that share  a cornercorner with one P(4)O4 tetrahedra and corners with three equivalent P(3)O4 tetrahedra. The Mn(3)-O(10) bond length is 2.11 Å. The Mn(3)-O(11) bond length is 2.02 Å. The Mn(3)-O(12) bond length is 2.01 Å. The Mn(3)-O(15) bond length is 2.07 Å. In the fourth Mn site, Mn(4) is bonded to one O(14), one O(16), one O(4), and one O(7) atom to form MnO4 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(4)O4 tetrahedra. The Mn(4)-O(14) bond length is 1.99 Å. The Mn(4)-O(16) bond length is 2.06 Å. The Mn(4)-O(4) bond length is 2.02 Å. The Mn(4)-O(7) bond length is 2.01 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 Mn(4)O4 tetrahedra and corners with three equivalent Mn(1)O4 tetrahedra. The P(1)-O(1) bond length is 1.54 Å. The P(1)-O(2) bond length is 1.51 Å. The P(1)-O(3) bond length is 1.52 Å. The P(1)-O(4) bond length is 1.53 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  a cornercorner with one Mn(1)O4 tetrahedra,  a cornercorner with one Mn(4)O4 tetrahedra, and corners with two equivalent Mn(2)O4 tetrahedra. The P(2)-O(5) bond length is 1.53 Å. The P(2)-O(6) bond length is 1.53 Å. The P(2)-O(7) bond length is 1.52 Å. The P(2)-O(8) bond length is 1.52 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 Mn(2)O4 tetrahedra and corners with three equivalent Mn(3)O4 tetrahedra. The P(3)-O(10) bond length is 1.53 Å. The P(3)-O(11) bond length is 1.52 Å. The P(3)-O(12) bond length is 1.53 Å. The P(3)-O(9) bond length is 1.53 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  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Mn(3)O4 tetrahedra, and corners with two equivalent Mn(4)O4 tetrahedra. The P(4)-O(13) bond length is 1.52 Å. The P(4)-O(14) bond length is 1.51 Å. The P(4)-O(15) bond length is 1.54 Å. The P(4)-O(16) bond length is 1.53 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Mn(4) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Mn(4) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted bent 150 degrees geometry to one Mn(2) and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(3) and one P(3) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one Mn(3) and one P(3) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Mn(3) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(4) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 150 degrees geometry to one Mn(4) and one P(4) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 150 degrees geometry to one Mn(3) and one P(4) atom. In the sixteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Mn(4) and one P(4) atom. Linkers: 16 [O]P([O])([O])=O. Metal clusters: 16 [Mn]. The MOF has largest included sphere 3.99 A, density 1.97 g/cm3, surface area 2563.36 m2/g, accessible volume 0.24 cm3/g