Mo4Mn3(PO7)4 crystallizes in the tetragonal I4_1/a space group. Mo(1) is bonded to one O(1), one O(4), one O(6), one O(7), and two equivalent O(5) atoms to form distorted MoO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mn(2)O6 octahedra, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 35-44°. The Mo(1)-O(1) bond length is 2.14 Å. The Mo(1)-O(4) bond length is 2.10 Å. The Mo(1)-O(6) bond length is 1.75 Å. The Mo(1)-O(7) bond length is 1.76 Å. There is one shorter (1.81 Å) and one longer (2.18 Å) Mo(1)-O(5) bond length. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to four equivalent O(3) atoms to form MnO4 tetrahedra that share corners with four equivalent P(1)O4 tetrahedra. All Mn(1)-O(3) bond lengths are 2.00 Å. In the second Mn site, Mn(2) is bonded to two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with four equivalent Mo(1)O6 octahedra and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 35-44°. Both Mn(2)-O(2) bond lengths are 2.15 Å. Both Mn(2)-O(6) bond lengths are 2.13 Å. Both Mn(2)-O(7) bond lengths are 2.13 Å. 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(2)O6 octahedra, corners with two equivalent Mo(1)O6 octahedra, and  a cornercorner with one Mn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 47-56°. The P(1)-O(1) bond length is 1.56 Å. The P(1)-O(2) bond length is 1.53 Å. The P(1)-O(3) bond length is 1.52 Å. The P(1)-O(4) bond length is 1.55 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Mo(1) and one P(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(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 distorted bent 120 degrees geometry to one Mo(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to two equivalent Mo(1) atoms. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mn(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Mo(1) and one Mn(2) atom. Linkers: 16 [O]P([O])([O])=O. Metal clusters: 12 [Mn] ,16 [Mo]. The MOF has largest included sphere 4.03 A, density 2.31 g/cm3, surface area 1897.26 m2/g, accessible volume 0.19 cm3/g