Ga5C2P4(O10F)2 crystallizes in the triclinic P-1 space group. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one F(1) atom to form GaO5F octahedra that share  a cornercorner with one P(2)O4 tetrahedra and corners with two equivalent P(1)O4 tetrahedra. The Ga(1)-O(1) bond length is 2.04 Å. The Ga(1)-O(2) bond length is 1.93 Å. The Ga(1)-O(3) bond length is 2.02 Å. The Ga(1)-O(4) bond length is 1.90 Å. The Ga(1)-O(5) bond length is 1.92 Å. The Ga(1)-F(1) bond length is 1.90 Å. In the second Ga site, Ga(2) is bonded to one O(10), one O(6), one O(7), and one O(8) atom to form GaO4 tetrahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with two equivalent P(2)O4 tetrahedra. The Ga(2)-O(10) bond length is 1.81 Å. The Ga(2)-O(6) bond length is 1.82 Å. The Ga(2)-O(7) bond length is 1.83 Å. The Ga(2)-O(8) bond length is 1.82 Å. In the third Ga site, Ga(3) is bonded in a square co-planar geometry to two equivalent O(9) and two equivalent F(1) atoms. Both Ga(3)-O(9) bond lengths are 1.93 Å. Both Ga(3)-F(1) bond lengths are 1.96 Å. C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(3) atom. The C(1)-O(1) bond length is 1.24 Å. The C(1)-O(3) bond length is 1.26 Å. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(2), one O(4), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Ga(1)O5F octahedra and corners with two equivalent Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 32-50°. The P(1)-O(2) bond length is 1.52 Å. The P(1)-O(4) bond length is 1.50 Å. The P(1)-O(7) bond length is 1.54 Å. The P(1)-O(8) bond length is 1.54 Å. In the second P site, P(2) is bonded to one O(10), one O(5), one O(6), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Ga(1)O5F octahedra and corners with two equivalent Ga(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 43°. The P(2)-O(10) bond length is 1.55 Å. The P(2)-O(5) bond length is 1.51 Å. The P(2)-O(6) bond length is 1.54 Å. The P(2)-O(9) bond length is 1.51 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Ga(1) and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Ga(1) and one P(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Ga(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one Ga(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Ga(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Ga(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a bent 120 degrees geometry to one Ga(2) and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Ga(2) and one P(1) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Ga(3) and one P(2) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Ga(2) and one P(2) atom. F(1) is bonded in a distorted bent 150 degrees geometry to one Ga(1) and one Ga(3) atom. Linkers: 1 [O]C(=O)C([O])=O. Metal clusters: 5 [Ga]. The MOF has largest included sphere 4.64 A, density 2.19 g/cm3, surface area 2154.75 m2/g, accessible volume 0.17 cm3/g