Mn5P3H3(CO4)6 crystallizes in the triclinic P-1 space group. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(13), one O(15), one O(18), one O(20), and one O(3) atom to form distorted MnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and  an edgeedge with one Mn(2)O5 square pyramid. The Mn(1)-O(1) bond length is 2.14 Å. The Mn(1)-O(13) bond length is 2.18 Å. The Mn(1)-O(15) bond length is 2.22 Å. The Mn(1)-O(18) bond length is 2.29 Å. The Mn(1)-O(20) bond length is 2.22 Å. The Mn(1)-O(3) bond length is 2.07 Å. In the second Mn site, Mn(2) is bonded to one O(1), one O(14), one O(16), one O(20), and one O(4) atom to form MnO5 square pyramids that share corners with two equivalent P(1)O4 tetrahedra and  an edgeedge with one Mn(1)O6 octahedra. The Mn(2)-O(1) bond length is 2.15 Å. The Mn(2)-O(14) bond length is 2.30 Å. The Mn(2)-O(16) bond length is 2.20 Å. The Mn(2)-O(20) bond length is 2.24 Å. The Mn(2)-O(4) bond length is 2.03 Å. In the third Mn site, Mn(3) is bonded to one O(12), one O(17), one O(19), one O(22), one O(24), and one O(6) atom to form MnO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  an edgeedge with one Mn(4)O6 octahedra. The Mn(3)-O(12) bond length is 2.03 Å. The Mn(3)-O(17) bond length is 2.20 Å. The Mn(3)-O(19) bond length is 2.24 Å. The Mn(3)-O(22) bond length is 2.19 Å. The Mn(3)-O(24) bond length is 2.22 Å. The Mn(3)-O(6) bond length is 2.19 Å. In the fourth Mn site, Mn(4) is bonded to one O(17), one O(21), one O(23), one O(5), one O(6), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(5)O5 square pyramids,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and  an edgeedge with one Mn(3)O6 octahedra. The Mn(4)-O(17) bond length is 2.24 Å. The Mn(4)-O(21) bond length is 2.14 Å. The Mn(4)-O(23) bond length is 2.30 Å. The Mn(4)-O(5) bond length is 2.22 Å. The Mn(4)-O(6) bond length is 2.15 Å. The Mn(4)-O(9) bond length is 2.03 Å. In the fifth Mn site, Mn(5) is bonded to one O(23), one O(5), one O(8), and two equivalent O(11) atoms to form distorted MnO5 square pyramids that share corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and  an edgeedge with one Mn(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 62-76°. The Mn(5)-O(23) bond length is 2.46 Å. The Mn(5)-O(5) bond length is 2.22 Å. The Mn(5)-O(8) bond length is 2.32 Å. There is one shorter (2.19 Å) and one longer (2.22 Å) Mn(5)-O(11) bond length. There are six inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(13) and one O(14) atom. The C(1)-O(13) bond length is 1.25 Å. The C(1)-O(14) 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(15) and one O(16) atom. The C(2)-O(15) bond length is 1.25 Å. The C(2)-O(16) bond length is 1.25 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one O(17) and one O(18) atom. The C(3)-O(17) bond length is 1.27 Å. The C(3)-O(18) bond length is 1.23 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(19) and one O(20) atom. The C(4)-O(19) bond length is 1.23 Å. The C(4)-O(20) bond length is 1.27 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(21) and one O(22) atom. The C(5)-O(21) bond length is 1.25 Å. The C(5)-O(22) bond length is 1.24 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(23) and one O(24) atom. The C(6)-O(23) bond length is 1.25 Å. The C(6)-O(24) bond length is 1.25 Å. There are three 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 corners with two equivalent Mn(1)O6 octahedra and corners with two equivalent Mn(2)O5 square pyramids. The corner-sharing octahedral tilt angles range from 40-48°. The P(1)-O(1) bond length is 1.54 Å. The P(1)-O(2) bond length is 1.58 Å. The P(1)-O(3) bond length is 1.52 Å. The P(1)-O(4) bond length is 1.51 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(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, and corners with two equivalent Mn(5)O5 square pyramids. The corner-sharing octahedral tilt angles range from 46-59°. 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 1.57 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(3)O6 octahedra,  a cornercorner with one Mn(4)O6 octahedra, and corners with two equivalent Mn(5)O5 square pyramids. The corner-sharing octahedral tilt angles range from 36-40°. The P(3)-O(10) bond length is 1.60 Å. The P(3)-O(11) bond length is 1.53 Å. The P(3)-O(12) bond length is 1.49 Å. The P(3)-O(9) bond length is 1.50 Å. There are three 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(7) atom. The H(2)-O(7) bond length is 0.82 Å. In the third H site, H(3) is bonded in a single-bond geometry to one O(10) atom. The H(3)-O(10) bond length is 0.82 Å. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one P(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one P(1) and one H(1) atom. In the third O site, O(3) is bonded in a 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(2) and one P(1) atom. In the fifth O site, O(5) is bonded in a trigonal planar geometry to one Mn(4), one Mn(5), and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(4), and one P(2) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one P(2) and one H(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 120 degrees geometry to one Mn(5) and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Mn(4) and one P(3) atom. In the tenth O site, O(10) is bonded in a water-like geometry to one P(3) and one H(3) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to two equivalent Mn(5) and one P(3) atom. In the twelfth O site, O(12) is bonded in a 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 120 degrees geometry to one Mn(1) and one C(1) atom. In the fourteenth O site, O(14) is bonded in a distorted single-bond geometry to one Mn(2) and one C(1) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(2) atom. In the sixteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(2) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal planar geometry to one Mn(3), one Mn(4), and one C(3) atom. In the eighteenth O site, O(18) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(3) atom. In the nineteenth O site, O(19) is bonded in a bent 120 degrees geometry to one Mn(3) and one C(4) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal planar geometry to one Mn(1), one Mn(2), and one C(4) atom. In the twenty-first O site, O(21) is bonded in a bent 120 degrees geometry to one Mn(4) and one C(5) atom. In the twenty-second O site, O(22) is bonded in a bent 120 degrees geometry to one Mn(3) and one C(5) atom. In the twenty-third O site, O(23) is bonded in a distorted trigonal non-coplanar geometry to one Mn(4), one Mn(5), and one C(6) atom. In the twenty-fourth O site, O(24) is bonded in a bent 120 degrees geometry to one Mn(3) and one C(6) atom. Linkers: 6 [O]C(=O)C([O])=O. Metal clusters: 10 [Mn]. The MOF has largest included sphere 3.96 A, density 2.10 g/cm3, surface area 2461.21 m2/g, accessible volume 0.13 cm3/g