MnGa2P3H2(CO5)4 crystallizes in the triclinic P-1 space group. Mn(1) is bonded in a 6-coordinate geometry to one O(11), one O(12), one O(17), one O(18), one O(6), and one O(7) atom. The Mn(1)-O(11) bond length is 2.08 Å. The Mn(1)-O(12) bond length is 2.10 Å. The Mn(1)-O(17) bond length is 2.23 Å. The Mn(1)-O(18) bond length is 2.20 Å. The Mn(1)-O(6) bond length is 2.47 Å. The Mn(1)-O(7) bond length is 2.18 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(1), one O(15), one O(16), one O(2), one O(7), and one O(9) atom to form GaO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. The Ga(1)-O(1) bond length is 1.92 Å. The Ga(1)-O(15) bond length is 2.01 Å. The Ga(1)-O(16) bond length is 2.04 Å. The Ga(1)-O(2) bond length is 1.93 Å. The Ga(1)-O(7) bond length is 2.02 Å. The Ga(1)-O(9) bond length is 1.92 Å. In the second Ga site, Ga(2) is bonded to one O(10), one O(13), one O(14), one O(3), one O(5), and one O(6) atom to form GaO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The Ga(2)-O(10) bond length is 1.91 Å. The Ga(2)-O(13) bond length is 2.05 Å. The Ga(2)-O(14) bond length is 2.03 Å. The Ga(2)-O(3) bond length is 1.96 Å. The Ga(2)-O(5) bond length is 1.94 Å. The Ga(2)-O(6) bond length is 2.00 Å. There are four inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(16) and one O(19) atom. The C(1)-O(16) bond length is 1.26 Å. The C(1)-O(19) bond length is 1.23 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(15) and one O(20) atom. The C(2)-O(15) bond length is 1.27 Å. The C(2)-O(20) 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(13) and one O(18) atom. The C(3)-O(13) bond length is 1.26 Å. The C(3)-O(18) bond length is 1.24 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(14) and one O(17) atom. The C(4)-O(14) bond length is 1.27 Å. The C(4)-O(17) bond length is 1.24 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  a cornercorner with one Ga(2)O6 octahedra and corners with two equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 36-45°. The P(1)-O(1) bond length is 1.51 Å. The P(1)-O(2) bond length is 1.53 Å. The P(1)-O(3) bond length is 1.53 Å. The P(1)-O(4) bond length is 1.59 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 Ga(1)O6 octahedra and corners with two equivalent Ga(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-45°. The P(2)-O(5) bond length is 1.51 Å. The P(2)-O(6) bond length is 1.53 Å. The P(2)-O(7) bond length is 1.54 Å. The P(2)-O(8) bond length is 1.57 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 Ga(1)O6 octahedra and  a cornercorner with one Ga(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-49°. The P(3)-O(10) bond length is 1.55 Å. The P(3)-O(11) bond length is 1.52 Å. The P(3)-O(12) bond length is 1.53 Å. The P(3)-O(9) bond length is 1.54 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(8) atom. The H(1)-O(8) bond length is 0.89 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(4) atom. The H(2)-O(4) bond length is 0.83 Å. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Ga(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Ga(1) and one P(1) atom. In the third O site, O(3) is bonded in a distorted bent 150 degrees geometry to one Ga(2) and one P(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one H(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Ga(2) and one P(2) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mn(1), one Ga(2), and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal planar geometry to one Mn(1), one Ga(1), and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 120 degrees geometry to one P(2) and one H(1) atom. In the ninth O site, O(9) is bonded in a bent 120 degrees geometry to one Ga(1) and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 120 degrees geometry to one Ga(2) and one P(3) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one P(3) atom. In the twelfth O site, O(12) is bonded in a 2-coordinate geometry to one Mn(1) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Ga(2) and one C(3) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one Ga(2) and one C(4) atom. In the fifteenth O site, O(15) is bonded in a bent 120 degrees geometry to one Ga(1) and one C(2) atom. In the sixteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Ga(1) and one C(1) atom. In the seventeenth O site, O(17) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(4) 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 single-bond geometry to one C(1) atom. In the twentieth O site, O(20) is bonded in a single-bond geometry to one C(2) atom. Linkers: 4 [O]C(=O)C([O])=O. Metal clusters: 2 [Mn] ,4 [Ga]. The MOF has largest included sphere 3.95 A, density 2.18 g/cm3, surface area 2394.26 m2/g, accessible volume 0.17 cm3/g