MnPH2(CO4)2 crystallizes in the orthorhombic Pbca space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(13), one O(14), one O(15), one O(16), one O(4), and one O(6) atom to form MnO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra and  a cornercorner with one P(2)O4 tetrahedra. The Mn(1)-O(13) bond length is 2.18 Å. The Mn(1)-O(14) bond length is 2.21 Å. The Mn(1)-O(15) bond length is 2.18 Å. The Mn(1)-O(16) bond length is 2.22 Å. The Mn(1)-O(4) bond length is 2.12 Å. The Mn(1)-O(6) bond length is 2.14 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(10), one O(11), one O(12), one O(5), and one O(9) atom to form MnO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra and  a cornercorner with one P(2)O4 tetrahedra. The Mn(2)-O(1) bond length is 2.07 Å. The Mn(2)-O(10) bond length is 2.21 Å. The Mn(2)-O(11) bond length is 2.22 Å. The Mn(2)-O(12) bond length is 2.18 Å. The Mn(2)-O(5) bond length is 2.16 Å. The Mn(2)-O(9) bond length is 2.19 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(9) atom. The C(1)-O(10) bond length is 1.24 Å. The C(1)-O(9) bond length is 1.25 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(11) and one O(12) atom. The C(2)-O(11) bond length is 1.24 Å. The C(2)-O(12) bond length is 1.26 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one O(13) and one O(15) atom. The C(3)-O(13) bond length is 1.25 Å. The C(3)-O(15) bond length is 1.24 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(14) and one O(16) atom. The C(4)-O(14) bond length is 1.23 Å. The C(4)-O(16) bond length is 1.25 Å. There are two inequivalent P sites. In the first P site, P(1) 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)O6 octahedra and  a cornercorner with one Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-52°. The P(1)-O(5) bond length is 1.49 Å. The P(1)-O(6) bond length is 1.50 Å. The P(1)-O(7) bond length is 1.55 Å. The P(1)-O(8) bond length is 1.57 Å. In the second P site, P(2) 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(1)O6 octahedra and  a cornercorner with one Mn(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-41°. The P(2)-O(1) bond length is 1.48 Å. The P(2)-O(2) bond length is 1.55 Å. The P(2)-O(3) bond length is 1.55 Å. The P(2)-O(4) bond length is 1.49 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(2) atom. The H(1)-O(2) bond length is 0.82 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(3) atom. The H(2)-O(3) bond length is 0.82 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(7) atom. The H(3)-O(7) bond length is 0.82 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(8) atom. The H(4)-O(8) bond length is 0.82 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(2) atom. In the second O site, O(2) is bonded in a water-like geometry to one P(2) and one H(1) atom. In the third O site, O(3) is bonded in a water-like geometry to one P(2) and one H(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one P(1) and one H(3) atom. In the eighth O site, O(8) is bonded in a water-like geometry to one P(1) and one H(4) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(1) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(1) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(2) atom. In the twelfth O site, O(12) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(2) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(3) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(4) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(3) atom. In the sixteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(4) atom. Linkers: 14 [O]C(=O)C([O])=O. Metal clusters: 16 [Mn]. The MOF has largest included sphere 4.71 A, density 1.53 g/cm3, surface area 3340.72 m2/g, accessible volume 0.34 cm3/g