Mn2Ga5(PO4)8 crystallizes in the triclinic P-1 space group. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(13), one O(17), one O(4), and one O(9) atom. The Mn(1)-O(1) bond length is 2.05 Å. The Mn(1)-O(11) bond length is 2.67 Å. The Mn(1)-O(13) bond length is 1.98 Å. The Mn(1)-O(17) bond length is 2.05 Å. The Mn(1)-O(4) bond length is 2.61 Å. The Mn(1)-O(9) bond length is 2.10 Å. In the second Mn site, Mn(2) is bonded to one O(16), one O(18), one O(22), and one O(29) atom to form MnO4 tetrahedra that share  a cornercorner with one P(4)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra, and  a cornercorner with one P(8)O4 tetrahedra. The Mn(2)-O(16) bond length is 1.92 Å. The Mn(2)-O(18) bond length is 1.87 Å. The Mn(2)-O(22) bond length is 1.86 Å. The Mn(2)-O(29) bond length is 1.90 Å. There are five inequivalent Ga sites. In the first Ga site, Ga(1) is bonded to one O(11), one O(2), one O(27), one O(28), one O(5), and one O(7) atom to form GaO6 octahedra that share  a cornercorner with one Ga(2)O5 square pyramid,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(7)O4 tetrahedra, and  an edgeedge with one P(2)O4 tetrahedra. The Ga(1)-O(11) bond length is 1.97 Å. The Ga(1)-O(2) bond length is 1.95 Å. The Ga(1)-O(27) bond length is 1.88 Å. The Ga(1)-O(28) bond length is 1.98 Å. The Ga(1)-O(5) bond length is 2.12 Å. The Ga(1)-O(7) bond length is 2.02 Å. In the second Ga site, Ga(2) is bonded to one O(15), one O(31), one O(32), one O(4), and one O(5) atom to form GaO5 square pyramids that share  a cornercorner with one Ga(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and corners with two equivalent P(8)O4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. The Ga(2)-O(15) bond length is 1.92 Å. The Ga(2)-O(31) bond length is 1.93 Å. The Ga(2)-O(32) bond length is 1.96 Å. The Ga(2)-O(4) bond length is 1.94 Å. The Ga(2)-O(5) bond length is 1.98 Å. In the third Ga site, Ga(3) is bonded to one O(12), one O(14), one O(21), one O(3), and one O(8) atom to form GaO5 trigonal bipyramids that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, and  a cornercorner with one P(6)O4 tetrahedra. The Ga(3)-O(12) bond length is 1.87 Å. The Ga(3)-O(14) bond length is 1.91 Å. The Ga(3)-O(21) bond length is 1.97 Å. The Ga(3)-O(3) bond length is 1.85 Å. The Ga(3)-O(8) bond length is 1.95 Å. In the fourth Ga site, Ga(4) is bonded to one O(10), one O(19), one O(23), one O(25), and one O(9) atom to form GaO5 trigonal bipyramids that share  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The Ga(4)-O(10) bond length is 1.81 Å. The Ga(4)-O(19) bond length is 1.85 Å. The Ga(4)-O(23) bond length is 1.84 Å. The Ga(4)-O(25) bond length is 1.88 Å. The Ga(4)-O(9) bond length is 2.16 Å. In the fifth Ga site, Ga(5) is bonded to one O(20), one O(24), one O(26), one O(30), and one O(6) atom to form GaO5 trigonal bipyramids that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra, and  a cornercorner with one P(8)O4 tetrahedra. The Ga(5)-O(20) bond length is 1.84 Å. The Ga(5)-O(24) bond length is 2.01 Å. The Ga(5)-O(26) bond length is 1.81 Å. The Ga(5)-O(30) bond length is 1.85 Å. The Ga(5)-O(6) bond length is 1.97 Å. There are eight 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(1)O6 octahedra,  a cornercorner with one Ga(2)O5 square pyramid, and  a cornercorner with one Ga(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 52°. The P(1)-O(1) bond length is 1.53 Å. The P(1)-O(2) bond length is 1.54 Å. The P(1)-O(3) bond length is 1.51 Å. The P(1)-O(4) bond length is 1.54 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(2)O5 square pyramid,  a cornercorner with one Ga(3)O5 trigonal bipyramid,  a cornercorner with one Ga(5)O5 trigonal bipyramid, and  an edgeedge with one Ga(1)O6 octahedra. The P(2)-O(5) bond length is 1.56 Å. The P(2)-O(6) bond length is 1.51 Å. The P(2)-O(7) bond length is 1.55 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 Ga(1)O6 octahedra,  a cornercorner with one Ga(3)O5 trigonal bipyramid, and corners with two equivalent Ga(4)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 34°. The P(3)-O(10) bond length is 1.50 Å. The P(3)-O(11) bond length is 1.51 Å. The P(3)-O(12) bond length is 1.54 Å. The P(3)-O(9) bond length is 1.55 Å. In the fourth P site, P(4) is bonded to one O(13), one O(14), one O(15), and one O(16) atom to form PO4 tetrahedra that share  a cornercorner with one Ga(2)O5 square pyramid,  a cornercorner with one Mn(2)O4 tetrahedra, and  a cornercorner with one Ga(3)O5 trigonal bipyramid. The P(4)-O(13) bond length is 1.49 Å. The P(4)-O(14) bond length is 1.54 Å. The P(4)-O(15) bond length is 1.52 Å. The P(4)-O(16) bond length is 1.55 Å. In the fifth P site, P(5) is bonded to one O(17), one O(18), one O(19), and one O(20) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Ga(4)O5 trigonal bipyramid, and  a cornercorner with one Ga(5)O5 trigonal bipyramid. The P(5)-O(17) bond length is 1.52 Å. The P(5)-O(18) bond length is 1.53 Å. The P(5)-O(19) bond length is 1.53 Å. The P(5)-O(20) bond length is 1.51 Å. In the sixth P site, P(6) is bonded to one O(21), one O(22), one O(23), and one O(24) atom to form PO4 tetrahedra that share  a cornercorner with one Mn(2)O4 tetrahedra,  a cornercorner with one Ga(3)O5 trigonal bipyramid,  a cornercorner with one Ga(4)O5 trigonal bipyramid, and  a cornercorner with one Ga(5)O5 trigonal bipyramid. The P(6)-O(21) bond length is 1.51 Å. The P(6)-O(22) bond length is 1.53 Å. The P(6)-O(23) bond length is 1.52 Å. The P(6)-O(24) bond length is 1.53 Å. In the seventh P site, P(7) is bonded to one O(25), one O(26), one O(27), and one O(28) atom to form PO4 tetrahedra that share corners with two equivalent Ga(1)O6 octahedra,  a cornercorner with one Ga(4)O5 trigonal bipyramid, and  a cornercorner with one Ga(5)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 41-43°. The P(7)-O(25) bond length is 1.53 Å. The P(7)-O(26) bond length is 1.51 Å. The P(7)-O(27) bond length is 1.51 Å. The P(7)-O(28) bond length is 1.52 Å. In the eighth P site, P(8) is bonded to one O(29), one O(30), one O(31), and one O(32) atom to form PO4 tetrahedra that share corners with two equivalent Ga(2)O5 square pyramids,  a cornercorner with one Mn(2)O4 tetrahedra, and  a cornercorner with one Ga(5)O5 trigonal bipyramid. The P(8)-O(29) bond length is 1.55 Å. The P(8)-O(30) bond length is 1.54 Å. The P(8)-O(31) bond length is 1.51 Å. The P(8)-O(32) bond length is 1.52 Å. There are thirty-two inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one Mn(1) and one P(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 150 degrees geometry to one Ga(3) and one P(1) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Mn(1), one Ga(2), and one P(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ga(1), one Ga(2), and one P(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one Ga(5) and one P(2) atom. In the seventh O site, O(7) is bonded in a water-like geometry to one Ga(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Ga(3) and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mn(1), one Ga(4), and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Ga(4) 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), one Ga(1), and one P(3) atom. In the twelfth O site, O(12) is bonded in a distorted bent 150 degrees geometry to one Ga(3) and one P(3) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one Mn(1) and one P(4) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one Ga(3) and one P(4) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one Ga(2) and one P(4) atom. In the sixteenth O site, O(16) is bonded in a bent 120 degrees geometry to one Mn(2) and one P(4) atom. In the seventeenth O site, O(17) is bonded in a bent 120 degrees geometry to one Mn(1) and one P(5) atom. In the eighteenth O site, O(18) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(5) atom. In the nineteenth O site, O(19) is bonded in a distorted bent 120 degrees geometry to one Ga(4) and one P(5) atom. In the twentieth O site, O(20) is bonded in a bent 150 degrees geometry to one Ga(5) and one P(5) atom. In the twenty-first O site, O(21) is bonded in a bent 150 degrees geometry to one Ga(3) and one P(6) atom. In the twenty-second O site, O(22) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(6) atom. In the twenty-third O site, O(23) is bonded in a bent 150 degrees geometry to one Ga(4) and one P(6) atom. In the twenty-fourth O site, O(24) is bonded in a distorted bent 150 degrees geometry to one Ga(5) and one P(6) atom. In the twenty-fifth O site, O(25) is bonded in a bent 150 degrees geometry to one Ga(4) and one P(7) atom. In the twenty-sixth O site, O(26) is bonded in a linear geometry to one Ga(5) and one P(7) atom. In the twenty-seventh O site, O(27) is bonded in a bent 150 degrees geometry to one Ga(1) and one P(7) atom. In the twenty-eighth O site, O(28) is bonded in a distorted bent 150 degrees geometry to one Ga(1) and one P(7) atom. In the twenty-ninth O site, O(29) is bonded in a bent 150 degrees geometry to one Mn(2) and one P(8) atom. In the thirtieth O site, O(30) is bonded in a bent 120 degrees geometry to one Ga(5) and one P(8) atom. In the thirty-first O site, O(31) is bonded in a distorted bent 120 degrees geometry to one Ga(2) and one P(8) atom. In the thirty-second O site, O(32) is bonded in a bent 150 degrees geometry to one Ga(2) and one P(8) atom. Linkers: 16 [O]P([O])([O])=O. Metal clusters: 4 [Mn] ,10 [Ga]. The MOF has largest included sphere 4.40 A, density 2.48 g/cm3, surface area 1903.67 m2/g, accessible volume 0.13 cm3/g