Mo6CdP4O25 crystallizes in the monoclinic Pc space group. There are twelve inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one Mo(2)O5 square pyramid, and  an edgeedge with one Mo(6)O5 square pyramid. The corner-sharing octahedral tilt angles are 51°. The Mo(1)-O(1) bond length is 2.00 Å. The Mo(1)-O(2) bond length is 2.05 Å. The Mo(1)-O(3) bond length is 2.11 Å. The Mo(1)-O(4) bond length is 2.09 Å. The Mo(1)-O(5) bond length is 2.31 Å. In the second Mo site, Mo(2) is bonded to one O(1), one O(2), one O(6), one O(7), and one O(8) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  an edgeedge with one Mo(1)O5 square pyramid, and  an edgeedge with one Mo(3)O5 square pyramid. The corner-sharing octahedral tilt angles are 46°. The Mo(2)-O(1) bond length is 1.89 Å. The Mo(2)-O(2) bond length is 2.01 Å. The Mo(2)-O(6) bond length is 2.14 Å. The Mo(2)-O(7) bond length is 2.04 Å. The Mo(2)-O(8) bond length is 2.21 Å. In the third Mo site, Mo(3) is bonded to one O(10), one O(11), one O(6), one O(8), and one O(9) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  an edgeedge with one Mo(2)O5 square pyramid, and  an edgeedge with one Mo(4)O5 square pyramid. The corner-sharing octahedral tilt angles are 44°. The Mo(3)-O(10) bond length is 1.78 Å. The Mo(3)-O(11) bond length is 2.02 Å. The Mo(3)-O(6) bond length is 2.03 Å. The Mo(3)-O(8) bond length is 2.37 Å. The Mo(3)-O(9) bond length is 1.88 Å. In the fourth Mo site, Mo(4) is bonded to one O(10), one O(12), one O(13), one O(14), and one O(9) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  an edgeedge with one Mo(3)O5 square pyramid, and  an edgeedge with one Mo(5)O5 square pyramid. The corner-sharing octahedral tilt angles are 53°. The Mo(4)-O(10) bond length is 2.11 Å. The Mo(4)-O(12) bond length is 2.25 Å. The Mo(4)-O(13) bond length is 2.05 Å. The Mo(4)-O(14) bond length is 2.06 Å. The Mo(4)-O(9) bond length is 1.96 Å. In the fifth Mo site, Mo(5) is bonded to one O(12), one O(14), one O(15), one O(16), and one O(17) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra,  an edgeedge with one Mo(4)O5 square pyramid, and  an edgeedge with one Mo(6)O5 square pyramid. The corner-sharing octahedral tilt angles are 51°. The Mo(5)-O(12) bond length is 2.28 Å. The Mo(5)-O(14) bond length is 2.02 Å. The Mo(5)-O(15) bond length is 1.98 Å. The Mo(5)-O(16) bond length is 2.07 Å. The Mo(5)-O(17) bond length is 2.03 Å. In the sixth Mo site, Mo(6) is bonded to one O(15), one O(17), one O(18), one O(4), and one O(5) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one Mo(1)O5 square pyramid, and  an edgeedge with one Mo(5)O5 square pyramid. The corner-sharing octahedral tilt angles are 44°. The Mo(6)-O(15) bond length is 1.96 Å. The Mo(6)-O(17) bond length is 1.96 Å. The Mo(6)-O(18) bond length is 2.02 Å. The Mo(6)-O(4) bond length is 2.02 Å. The Mo(6)-O(5) bond length is 2.34 Å. In the seventh Mo site, Mo(7) is bonded to one O(19), one O(20), one O(21), one O(22), and one O(23) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  an edgeedge with one Mo(12)O5 square pyramid, and  an edgeedge with one Mo(8)O5 square pyramid. The corner-sharing octahedral tilt angles are 51°. The Mo(7)-O(19) bond length is 2.24 Å. The Mo(7)-O(20) bond length is 1.92 Å. The Mo(7)-O(21) bond length is 1.97 Å. The Mo(7)-O(22) bond length is 2.19 Å. The Mo(7)-O(23) bond length is 2.10 Å. In the eighth Mo site, Mo(8) is bonded to one O(20), one O(21), one O(24), one O(25), and one O(26) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  an edgeedge with one Mo(7)O5 square pyramid, and  an edgeedge with one Mo(9)O5 square pyramid. The corner-sharing octahedral tilt angles are 46°. The Mo(8)-O(20) bond length is 1.92 Å. The Mo(8)-O(21) bond length is 1.91 Å. The Mo(8)-O(24) bond length is 2.30 Å. The Mo(8)-O(25) bond length is 2.23 Å. The Mo(8)-O(26) bond length is 2.08 Å. In the ninth Mo site, Mo(9) is bonded to one O(24), one O(25), one O(27), one O(28), and one O(29) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)O4 tetrahedra,  an edgeedge with one Mo(10)O5 square pyramid, and  an edgeedge with one Mo(8)O5 square pyramid. The corner-sharing octahedral tilt angles are 44°. The Mo(9)-O(24) bond length is 2.26 Å. The Mo(9)-O(25) bond length is 2.15 Å. The Mo(9)-O(27) bond length is 1.97 Å. The Mo(9)-O(28) bond length is 2.13 Å. The Mo(9)-O(29) bond length is 1.94 Å. In the tenth Mo site, Mo(10) is bonded to one O(27), one O(29), one O(30), one O(31), and one O(32) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra,  an edgeedge with one Mo(11)O5 square pyramid, and  an edgeedge with one Mo(9)O5 square pyramid. The corner-sharing octahedral tilt angles are 51°. The Mo(10)-O(27) bond length is 2.06 Å. The Mo(10)-O(29) bond length is 1.88 Å. The Mo(10)-O(30) bond length is 2.21 Å. The Mo(10)-O(31) bond length is 2.09 Å. The Mo(10)-O(32) bond length is 2.21 Å. In the eleventh Mo site, Mo(11) is bonded to one O(30), one O(32), one O(33), one O(34), and one O(35) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra,  an edgeedge with one Mo(10)O5 square pyramid, and  an edgeedge with one Mo(12)O5 square pyramid. The corner-sharing octahedral tilt angles are 47°. The Mo(11)-O(30) bond length is 2.11 Å. The Mo(11)-O(32) bond length is 2.38 Å. The Mo(11)-O(33) bond length is 2.12 Å. The Mo(11)-O(34) bond length is 1.94 Å. The Mo(11)-O(35) bond length is 2.00 Å. In the twelfth Mo site, Mo(12) is bonded to one O(19), one O(22), one O(34), one O(35), and one O(36) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(1)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra,  an edgeedge with one Mo(11)O5 square pyramid, and  an edgeedge with one Mo(7)O5 square pyramid. The corner-sharing octahedral tilt angles are 45°. The Mo(12)-O(19) bond length is 2.34 Å. The Mo(12)-O(22) bond length is 2.11 Å. The Mo(12)-O(34) bond length is 1.89 Å. The Mo(12)-O(35) bond length is 1.86 Å. The Mo(12)-O(36) bond length is 2.06 Å. There are two inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(17), one O(2), one O(21), one O(27), one O(34), and one O(9) atom to form CdO6 octahedra that share  a cornercorner with one Mo(1)O5 square pyramid,  a cornercorner with one Mo(10)O5 square pyramid,  a cornercorner with one Mo(11)O5 square pyramid,  a cornercorner with one Mo(12)O5 square pyramid,  a cornercorner with one Mo(2)O5 square pyramid,  a cornercorner with one Mo(3)O5 square pyramid,  a cornercorner with one Mo(4)O5 square pyramid,  a cornercorner with one Mo(5)O5 square pyramid,  a cornercorner with one Mo(6)O5 square pyramid,  a cornercorner with one Mo(7)O5 square pyramid,  a cornercorner with one Mo(8)O5 square pyramid, and  a cornercorner with one Mo(9)O5 square pyramid. The Cd(1)-O(17) bond length is 2.22 Å. The Cd(1)-O(2) bond length is 2.29 Å. The Cd(1)-O(21) bond length is 2.32 Å. The Cd(1)-O(27) bond length is 2.21 Å. The Cd(1)-O(34) bond length is 2.28 Å. The Cd(1)-O(9) bond length is 2.36 Å. In the second Cd site, Cd(2) is bonded to one O(38), one O(41), one O(42), one O(45), one O(48), and one O(50) atom to form CdO6 octahedra that share  a cornercorner with one P(2)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra,  a cornercorner with one P(4)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 Cd(2)-O(38) bond length is 2.23 Å. The Cd(2)-O(41) bond length is 2.24 Å. The Cd(2)-O(42) bond length is 2.32 Å. The Cd(2)-O(45) bond length is 2.25 Å. The Cd(2)-O(48) bond length is 2.33 Å. The Cd(2)-O(50) bond length is 2.39 Å. There are eight inequivalent P sites. In the first P site, P(1) is bonded to one O(12), one O(37), one O(5), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(1)O5 square pyramid,  a cornercorner with one Mo(2)O5 square pyramid,  a cornercorner with one Mo(3)O5 square pyramid,  a cornercorner with one Mo(4)O5 square pyramid,  a cornercorner with one Mo(5)O5 square pyramid, and  a cornercorner with one Mo(6)O5 square pyramid. The P(1)-O(12) bond length is 1.53 Å. The P(1)-O(37) bond length is 1.60 Å. The P(1)-O(5) bond length is 1.48 Å. The P(1)-O(8) bond length is 1.49 Å. In the second P site, P(2) is bonded to one O(18), one O(3), one O(38), and one O(39) atom to form PO4 tetrahedra that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one Mo(1)O5 square pyramid, and  a cornercorner with one Mo(6)O5 square pyramid. The corner-sharing octahedral tilt angles are 52°. The P(2)-O(18) bond length is 1.44 Å. The P(2)-O(3) bond length is 1.55 Å. The P(2)-O(38) bond length is 1.52 Å. The P(2)-O(39) bond length is 1.61 Å. In the third P site, P(3) is bonded to one O(11), one O(40), one O(41), and one O(7) atom to form PO4 tetrahedra that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one Mo(2)O5 square pyramid, and  a cornercorner with one Mo(3)O5 square pyramid. The corner-sharing octahedral tilt angles are 5°. The P(3)-O(11) bond length is 1.55 Å. The P(3)-O(40) bond length is 1.57 Å. The P(3)-O(41) bond length is 1.54 Å. The P(3)-O(7) bond length is 1.57 Å. In the fourth P site, P(4) is bonded to one O(13), one O(16), one O(42), and one O(43) atom to form PO4 tetrahedra that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one Mo(4)O5 square pyramid, and  a cornercorner with one Mo(5)O5 square pyramid. The corner-sharing octahedral tilt angles are 25°. The P(4)-O(13) bond length is 1.62 Å. The P(4)-O(16) bond length is 1.53 Å. The P(4)-O(42) bond length is 1.50 Å. The P(4)-O(43) bond length is 1.51 Å. In the fifth P site, P(5) is bonded to one O(19), one O(24), one O(32), and one O(44) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(10)O5 square pyramid,  a cornercorner with one Mo(11)O5 square pyramid,  a cornercorner with one Mo(12)O5 square pyramid,  a cornercorner with one Mo(7)O5 square pyramid,  a cornercorner with one Mo(8)O5 square pyramid, and  a cornercorner with one Mo(9)O5 square pyramid. The P(5)-O(19) bond length is 1.60 Å. The P(5)-O(24) bond length is 1.57 Å. The P(5)-O(32) bond length is 1.60 Å. The P(5)-O(44) bond length is 1.44 Å. In the sixth P site, P(6) is bonded to one O(23), one O(36), one O(45), and one O(46) atom to form PO4 tetrahedra that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one Mo(12)O5 square pyramid, and  a cornercorner with one Mo(7)O5 square pyramid. The corner-sharing octahedral tilt angles are 49°. The P(6)-O(23) bond length is 1.61 Å. The P(6)-O(36) bond length is 1.49 Å. The P(6)-O(45) bond length is 1.44 Å. The P(6)-O(46) bond length is 1.60 Å. In the seventh P site, P(7) is bonded to one O(26), one O(28), one O(47), and one O(48) atom to form PO4 tetrahedra that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one Mo(8)O5 square pyramid, and  a cornercorner with one Mo(9)O5 square pyramid. The corner-sharing octahedral tilt angles are 26°. The P(7)-O(26) bond length is 1.52 Å. The P(7)-O(28) bond length is 1.48 Å. The P(7)-O(47) bond length is 1.67 Å. The P(7)-O(48) bond length is 1.49 Å. In the eighth P site, P(8) is bonded to one O(31), one O(33), one O(49), and one O(50) atom to form PO4 tetrahedra that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one Mo(10)O5 square pyramid, and  a cornercorner with one Mo(11)O5 square pyramid. The corner-sharing octahedral tilt angles are 25°. The P(8)-O(31) bond length is 1.55 Å. The P(8)-O(33) bond length is 1.47 Å. The P(8)-O(49) bond length is 1.66 Å. The P(8)-O(50) bond length is 1.43 Å. There are fifty inequivalent O sites. In the first O site, O(1) is bonded in an L-shaped geometry to one Mo(1) and one Mo(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mo(1), one Mo(2), and one Cd(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Mo(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one Mo(1) and one Mo(6) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Mo(1), one Mo(6), and one P(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Mo(2) and one Mo(3) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Mo(2) and one P(3) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Mo(2), one Mo(3), and one P(1) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mo(3), one Mo(4), and one Cd(1) atom. In the tenth O site, O(10) is bonded in an L-shaped geometry to one Mo(3) and one Mo(4) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one Mo(3) and one P(3) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one Mo(4), one Mo(5), and one P(1) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one Mo(4) and one P(4) atom. In the fourteenth O site, O(14) is bonded in a bent 120 degrees geometry to one Mo(4) and one Mo(5) atom. In the fifteenth O site, O(15) is bonded in an L-shaped geometry to one Mo(5) and one Mo(6) atom. In the sixteenth O site, O(16) is bonded in a distorted single-bond geometry to one Mo(5) and one P(4) atom. In the seventeenth O site, O(17) is bonded in a distorted T-shaped geometry to one Mo(5), one Mo(6), and one Cd(1) atom. In the eighteenth O site, O(18) is bonded in a distorted single-bond geometry to one Mo(6) and one P(2) atom. In the nineteenth O site, O(19) is bonded in a distorted single-bond geometry to one Mo(12), one Mo(7), and one P(5) atom. In the twentieth O site, O(20) is bonded in an L-shaped geometry to one Mo(7) and one Mo(8) atom. In the twenty-first O site, O(21) is bonded in a 3-coordinate geometry to one Mo(7), one Mo(8), and one Cd(1) atom. In the twenty-second O site, O(22) is bonded in a bent 120 degrees geometry to one Mo(12) and one Mo(7) atom. In the twenty-third O site, O(23) is bonded in a distorted single-bond geometry to one Mo(7) and one P(6) atom. In the twenty-fourth O site, O(24) is bonded in a distorted single-bond geometry to one Mo(8), one Mo(9), and one P(5) atom. In the twenty-fifth O site, O(25) is bonded in a water-like geometry to one Mo(8) and one Mo(9) atom. In the twenty-sixth O site, O(26) is bonded in a distorted single-bond geometry to one Mo(8) and one P(7) atom. In the twenty-seventh O site, O(27) is bonded in a 3-coordinate geometry to one Mo(10), one Mo(9), and one Cd(1) atom. In the twenty-eighth O site, O(28) is bonded in a distorted single-bond geometry to one Mo(9) and one P(7) atom. In the twenty-ninth O site, O(29) is bonded in an L-shaped geometry to one Mo(10) and one Mo(9) atom. In the thirtieth O site, O(30) is bonded in a bent 120 degrees geometry to one Mo(10) and one Mo(11) atom. In the thirty-first O site, O(31) is bonded in a distorted single-bond geometry to one Mo(10) and one P(8) atom. In the thirty-second O site, O(32) is bonded in a 3-coordinate geometry to one Mo(10), one Mo(11), and one P(5) atom. In the thirty-third O site, O(33) is bonded in a distorted single-bond geometry to one Mo(11) and one P(8) atom. In the thirty-fourth O site, O(34) is bonded in a distorted T-shaped geometry to one Mo(11), one Mo(12), and one Cd(1) atom. In the thirty-fifth O site, O(35) is bonded in an L-shaped geometry to one Mo(11) and one Mo(12) atom. In the thirty-sixth O site, O(36) is bonded in a distorted single-bond geometry to one Mo(12) and one P(6) atom. In the thirty-seventh O site, O(37) is bonded in a single-bond geometry to one P(1) atom. In the thirty-eighth O site, O(38) is bonded in a bent 120 degrees geometry to one Cd(2) and one P(2) atom. In the thirty-ninth O site, O(39) is bonded in a single-bond geometry to one P(2) atom. In the fortieth O site, O(40) is bonded in a single-bond geometry to one P(3) atom. In the forty-first O site, O(41) is bonded in a linear geometry to one Cd(2) and one P(3) atom. In the forty-second O site, O(42) is bonded in a bent 150 degrees geometry to one Cd(2) and one P(4) atom. In the forty-third O site, O(43) is bonded in a single-bond geometry to one P(4) atom. In the forty-fourth O site, O(44) is bonded in a single-bond geometry to one P(5) atom. In the forty-fifth O site, O(45) is bonded in a distorted bent 120 degrees geometry to one Cd(2) and one P(6) atom. In the forty-sixth O site, O(46) is bonded in a single-bond geometry to one P(6) atom. In the forty-seventh O site, O(47) is bonded in a single-bond geometry to one P(7) atom. In the forty-eighth O site, O(48) is bonded in a bent 150 degrees geometry to one Cd(2) and one P(7) atom. In the forty-ninth O site, O(49) is bonded in a single-bond geometry to one P(8) atom. In the fiftieth O site, O(50) is bonded in a distorted bent 150 degrees geometry to one Cd(2) and one P(8) atom. Linkers: 16 [O]P([O])([O])=O. Metal clusters: 4 [Cd] ,24 [Mo]. The MOF has largest included sphere 6.05 A, density 2.27 g/cm3, surface area 1901.57 m2/g, accessible volume 0.22 cm3/g