Mn5P2H2(C5O13)2 crystallizes in the triclinic P-1 space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(11), one O(12), one O(13), one O(2), one O(3), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent P(1)HO3 tetrahedra. The Mn(1)-O(11) bond length is 2.19 Å. The Mn(1)-O(12) bond length is 2.30 Å. The Mn(1)-O(13) bond length is 2.19 Å. The Mn(1)-O(2) bond length is 2.10 Å. The Mn(1)-O(3) bond length is 2.11 Å. The Mn(1)-O(9) bond length is 2.26 Å. In the second Mn site, Mn(2) is bonded in a distorted pentagonal planar geometry to one O(10), one O(12), one O(5), one O(7), and one O(8) atom. The Mn(2)-O(10) bond length is 2.22 Å. The Mn(2)-O(12) bond length is 2.20 Å. The Mn(2)-O(5) bond length is 2.21 Å. The Mn(2)-O(7) bond length is 2.19 Å. The Mn(2)-O(8) bond length is 2.19 Å. In the third Mn site, Mn(3) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form MnO6 octahedra that share corners with two equivalent P(1)HO3 tetrahedra. Both Mn(3)-O(1) bond lengths are 2.15 Å. Both Mn(3)-O(4) bond lengths are 2.18 Å. Both Mn(3)-O(6) bond lengths are 2.23 Å. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(4) and one O(5) atom. The C(1)-O(4) bond length is 1.25 Å. The C(1)-O(5) bond length is 1.24 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(6) and one O(7) atom. The C(2)-O(6) bond length is 1.26 Å. The C(2)-O(7) bond length is 1.24 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one O(8) and one O(9) atom. The C(3)-O(8) bond length is 1.25 Å. The C(3)-O(9) bond length is 1.25 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(11) atom. The C(4)-O(10) bond length is 1.24 Å. The C(4)-O(11) bond length is 1.25 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(12) and one O(13) atom. The C(5)-O(12) bond length is 1.26 Å. The C(5)-O(13) bond length is 1.24 Å. P(1) is bonded to one H(1), one O(1), one O(2), and one O(3) atom to form distorted PHO3 tetrahedra that share  a cornercorner with one Mn(3)O6 octahedra and corners with two equivalent Mn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-49°. The P(1)-H(1) bond length is 1.36 Å. The P(1)-O(1) bond length is 1.52 Å. The P(1)-O(2) bond length is 1.52 Å. The P(1)-O(3) bond length is 1.52 Å. H(1) is bonded in a single-bond geometry to one P(1) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Mn(3) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mn(3) and one C(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mn(3) and one C(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(2) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(3) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(4) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(4) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Mn(1), one Mn(2), and one C(5) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(5) atom. Linkers: 5 [O]C(=O)C([O])=O. Metal clusters: 5 [Mn]. The MOF has largest included sphere 5.09 A, density 1.49 g/cm3, surface area 2916.22 m2/g, accessible volume 0.30 cm3/g