MnPH7(CO4)2 crystallizes in the monoclinic P2_1/c space group. Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form MnO6 octahedra that share  a cornercorner with one C(1)PHCO tetrahedra and corners with two equivalent P(1)CO3 tetrahedra. The Mn(1)-O(1) bond length is 2.27 Å. The Mn(1)-O(2) bond length is 2.19 Å. The Mn(1)-O(3) bond length is 2.11 Å. The Mn(1)-O(4) bond length is 2.24 Å. The Mn(1)-O(5) bond length is 2.28 Å. The Mn(1)-O(6) bond length is 2.05 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded to one C(2), one P(1), one H(7), and one O(4) atom to form distorted CPHCO tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 64°. The C(1)-C(2) bond length is 1.52 Å. The C(1)-P(1) bond length is 1.86 Å. The C(1)-H(7) bond length is 1.10 Å. The C(1)-O(4) bond length is 1.43 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(2), and one O(8) atom. The C(2)-O(2) bond length is 1.27 Å. The C(2)-O(8) bond length is 1.27 Å. P(1) is bonded to one C(1), one O(5), one O(6), and one O(7) atom to form PCO3 tetrahedra that share corners with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-55°. The P(1)-O(5) bond length is 1.54 Å. The P(1)-O(6) bond length is 1.51 Å. The P(1)-O(7) bond length is 1.57 Å. There are seven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) and one O(5) atom. The H(1)-O(1) bond length is 1.00 Å. The H(1)-O(5) bond length is 1.69 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(1) atom. The H(2)-O(1) bond length is 1.00 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(3) atom. The H(3)-O(3) bond length is 0.99 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(3) and one O(5) atom. The H(4)-O(3) bond length is 0.99 Å. The H(4)-O(5) bond length is 1.71 Å. In the fifth H site, H(5) is bonded in a single-bond geometry to one O(4) atom. The H(5)-O(4) bond length is 1.01 Å. In the sixth H site, H(6) is bonded in a linear geometry to one O(7) and one O(8) atom. The H(6)-O(7) bond length is 1.04 Å. The H(6)-O(8) bond length is 1.50 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(1) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Mn(1), one H(1), and one H(2) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one C(2) atom. In the third O site, O(3) is bonded in a distorted water-like geometry to one Mn(1), one H(3), and one H(4) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mn(1), one C(1), and one H(5) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Mn(1), one P(1), one H(1), and one H(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(1) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one P(1) and one H(6) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one C(2) and one H(6) atom. Linkers: 2 [O]C(=O)[C@H](O)P([O])(=O)O ,2 [O]C(=O)[C@@H](O)P([O])(=O)O. Metal clusters: 4 [Mn]. The MOF has largest included sphere 1.35 A, density 2.42 g/cm3, surface area 2745.34 m2/g, accessible volume 0.04 cm3/g