In2P2O8F crystallizes in the monoclinic P2_1/c space group. There are four inequivalent In sites. In the first In site, In(1) is bonded to one O(10), one O(14), one O(5), one O(7), one F(1), and one F(2) atom to form InO4F2 octahedra that share  a cornercorner with one In(2)O4F square pyramid,  a cornercorner with one In(3)O4F square pyramid,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The In(1)-O(10) bond length is 2.12 Å. The In(1)-O(14) bond length is 2.11 Å. The In(1)-O(5) bond length is 2.12 Å. The In(1)-O(7) bond length is 2.10 Å. The In(1)-F(1) bond length is 2.12 Å. The In(1)-F(2) bond length is 2.14 Å. In the second In site, In(2) is bonded to one O(12), one O(15), one O(6), one O(8), and one F(2) atom to form InO4F square pyramids that share  a cornercorner with one In(1)O4F2 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles are 57°. The In(2)-O(12) bond length is 2.16 Å. The In(2)-O(15) bond length is 2.11 Å. The In(2)-O(6) bond length is 2.12 Å. The In(2)-O(8) bond length is 2.11 Å. The In(2)-F(2) bond length is 2.12 Å. In the third In site, In(3) is bonded to one O(11), one O(13), one O(3), one O(4), and one F(1) atom to form InO4F square pyramids that share  a cornercorner with one In(1)O4F2 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 54°. The In(3)-O(11) bond length is 2.13 Å. The In(3)-O(13) bond length is 2.12 Å. The In(3)-O(3) bond length is 2.14 Å. The In(3)-O(4) bond length is 2.08 Å. The In(3)-F(1) bond length is 2.13 Å. In the fourth In site, In(4) is bonded in a rectangular see-saw-like geometry to one O(1), one O(16), one O(2), and one O(9) atom. The In(4)-O(1) bond length is 2.12 Å. The In(4)-O(16) bond length is 2.12 Å. The In(4)-O(2) bond length is 2.10 Å. The In(4)-O(9) bond length is 2.08 Å. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(15), one O(2), one O(3), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one In(1)O4F2 octahedra,  a cornercorner with one In(2)O4F square pyramid, and  a cornercorner with one In(3)O4F square pyramid. The corner-sharing octahedral tilt angles are 53°. The P(1)-O(15) bond length is 1.54 Å. The P(1)-O(2) bond length is 1.54 Å. The P(1)-O(3) bond length is 1.54 Å. The P(1)-O(7) bond length is 1.53 Å. In the second P site, P(2) is bonded to one O(10), one O(11), one O(14), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent In(1)O4F2 octahedra,  a cornercorner with one In(2)O4F square pyramid, and  a cornercorner with one In(3)O4F square pyramid. The corner-sharing octahedral tilt angles range from 40-50°. The P(2)-O(10) bond length is 1.55 Å. The P(2)-O(11) bond length is 1.55 Å. The P(2)-O(14) bond length is 1.53 Å. The P(2)-O(8) bond length is 1.53 Å. In the third P site, P(3) is bonded to one O(1), one O(13), one O(4), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one In(2)O4F square pyramid and corners with two equivalent In(3)O4F square pyramids. The P(3)-O(1) bond length is 1.55 Å. The P(3)-O(13) bond length is 1.53 Å. The P(3)-O(4) bond length is 1.54 Å. The P(3)-O(6) bond length is 1.54 Å. In the fourth P site, P(4) is bonded to one O(12), one O(16), one O(5), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one In(1)O4F2 octahedra and  a cornercorner with one In(2)O4F square pyramid. The corner-sharing octahedral tilt angles are 53°. The P(4)-O(12) bond length is 1.54 Å. The P(4)-O(16) bond length is 1.54 Å. The P(4)-O(5) bond length is 1.56 Å. The P(4)-O(9) bond length is 1.52 Å. There are sixteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one In(4) and one P(3) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one In(4) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one In(3) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one In(3) and one P(3) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one In(1) and one P(4) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one In(2) and one P(3) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one In(1) and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one In(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one In(4) and one P(4) atom. In the tenth O site, O(10) is bonded in a distorted bent 150 degrees geometry to one In(1) and one P(2) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one In(3) and one P(2) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one In(2) and one P(4) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 150 degrees geometry to one In(3) and one P(3) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 120 degrees geometry to one In(1) and one P(2) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 150 degrees geometry to one In(2) and one P(1) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 150 degrees geometry to one In(4) and one P(4) atom. There are two inequivalent F sites. In the first F site, F(1) is bonded in a bent 120 degrees geometry to one In(1) and one In(3) atom. In the second F site, F(2) is bonded in a bent 120 degrees geometry to one In(1) and one In(2) atom. Linkers: 16 [O]P([O])([O])=O. Metal clusters: 16 [In]. The MOF has largest included sphere 5.42 A, density 2.53 g/cm3, surface area 1870.23 m2/g, accessible volume 0.22 cm3/g