MgMo12Cd2CP8NH14(O25Cl)2CH3NH2 crystallizes in the triclinic P-1 space group. The structure consists of two methylammonium molecules inside a MgMo12Cd2CP8NH14(O25Cl)2 framework. In the MgMo12Cd2CP8NH14(O25Cl)2 framework, Mg(1) is bonded in a distorted see-saw-like geometry to one N(1), one O(36), one O(41), and one O(8) atom. The Mg(1)-N(1) bond length is 2.02 Å. The Mg(1)-O(36) bond length is 2.05 Å. The Mg(1)-O(41) bond length is 2.40 Å. The Mg(1)-O(8) bond length is 2.30 Å. There are twelve inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(17), one O(22), one O(25), one O(5), and one Cl(2) atom to form distorted MoClO5 octahedra that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and  an edgeedge with one Mo(2)O5 square pyramid. The corner-sharing octahedral tilt angles are 50°. The Mo(1)-O(1) bond length is 2.21 Å. The Mo(1)-O(17) bond length is 2.13 Å. The Mo(1)-O(22) bond length is 1.94 Å. The Mo(1)-O(25) bond length is 1.98 Å. The Mo(1)-O(5) bond length is 2.09 Å. The Mo(1)-Cl(2) bond length is 1.67 Å. In the second Mo site, Mo(2) is bonded to one O(1), one O(17), one O(18), one O(23), and one O(6) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one Cd(1)O5 square pyramid,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one Mo(1)ClO5 octahedra, and  an edgeedge with one Mo(3)O5 square pyramid. The corner-sharing octahedral tilt angles are 48°. The Mo(2)-O(1) bond length is 2.28 Å. The Mo(2)-O(17) bond length is 2.10 Å. The Mo(2)-O(18) bond length is 1.96 Å. The Mo(2)-O(23) bond length is 1.96 Å. The Mo(2)-O(6) bond length is 2.04 Å. In the third Mo site, Mo(3) is bonded to one O(18), one O(19), one O(2), one O(23), and one O(9) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one Cd(1)O5 square pyramid,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)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 47°. The Mo(3)-O(18) bond length is 1.97 Å. The Mo(3)-O(19) bond length is 2.10 Å. The Mo(3)-O(2) bond length is 2.28 Å. The Mo(3)-O(23) bond length is 1.96 Å. The Mo(3)-O(9) bond length is 2.05 Å. In the fourth Mo site, Mo(4) is bonded to one O(10), one O(19), one O(2), one O(20), and one O(24) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(2)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 47°. The Mo(4)-O(10) bond length is 2.07 Å. The Mo(4)-O(19) bond length is 2.10 Å. The Mo(4)-O(2) bond length is 2.31 Å. The Mo(4)-O(20) bond length is 1.94 Å. The Mo(4)-O(24) bond length is 1.97 Å. In the fifth Mo site, Mo(5) is bonded to one O(13), one O(20), one O(21), one O(24), and one O(3) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, and  an edgeedge with one Mo(4)O5 square pyramid. The corner-sharing octahedral tilt angles are 46°. The Mo(5)-O(13) bond length is 2.03 Å. The Mo(5)-O(20) bond length is 1.94 Å. The Mo(5)-O(21) bond length is 2.14 Å. The Mo(5)-O(24) bond length is 1.96 Å. The Mo(5)-O(3) bond length is 2.29 Å. In the sixth Mo site, Mo(6) is bonded in a 6-coordinate geometry to one O(14), one O(21), one O(22), one O(25), one O(3), and one Cl(1) atom. The Mo(6)-O(14) bond length is 2.03 Å. The Mo(6)-O(21) bond length is 2.11 Å. The Mo(6)-O(22) bond length is 1.95 Å. The Mo(6)-O(25) bond length is 1.97 Å. The Mo(6)-O(3) bond length is 2.28 Å. The Mo(6)-Cl(1) bond length is 1.68 Å. In the seventh Mo site, Mo(7) is bonded to one O(26), one O(30), one O(44), one O(49), and one O(50) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(3)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)O4 tetrahedra, and  an edgeedge with one Mo(8)O5 square pyramid. The corner-sharing octahedral tilt angles are 47°. The Mo(7)-O(26) bond length is 2.28 Å. The Mo(7)-O(30) bond length is 2.07 Å. The Mo(7)-O(44) bond length is 2.14 Å. The Mo(7)-O(49) bond length is 1.94 Å. The Mo(7)-O(50) bond length is 1.96 Å. In the eighth Mo site, Mo(8) is bonded to one O(26), one O(31), one O(42), one O(44), and one O(45) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(3)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(6)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 49°. The Mo(8)-O(26) bond length is 2.28 Å. The Mo(8)-O(31) bond length is 2.05 Å. The Mo(8)-O(42) bond length is 1.96 Å. The Mo(8)-O(44) bond length is 2.10 Å. The Mo(8)-O(45) bond length is 1.94 Å. In the ninth Mo site, Mo(9) is bonded to one O(27), one O(34), one O(42), one O(45), and one O(46) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(3)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 46°. The Mo(9)-O(27) bond length is 2.26 Å. The Mo(9)-O(34) bond length is 2.06 Å. The Mo(9)-O(42) bond length is 1.97 Å. The Mo(9)-O(45) bond length is 1.95 Å. The Mo(9)-O(46) bond length is 2.07 Å. In the tenth Mo site, Mo(10) is bonded to one O(27), one O(35), one O(43), one O(46), and one O(47) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(3)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(7)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 47°. The Mo(10)-O(27) bond length is 2.28 Å. The Mo(10)-O(35) bond length is 2.05 Å. The Mo(10)-O(43) bond length is 1.97 Å. The Mo(10)-O(46) bond length is 2.08 Å. The Mo(10)-O(47) bond length is 1.94 Å. In the eleventh Mo site, Mo(11) is bonded to one O(28), one O(38), one O(43), one O(47), and one O(48) atom to form distorted MoO5 square pyramids that share  a cornercorner with one Cd(3)O6 octahedra,  a cornercorner with one P(5)O4 tetrahedra,  a cornercorner with one P(8)O4 tetrahedra, and  an edgeedge with one Mo(10)O5 square pyramid. The corner-sharing octahedral tilt angles are 48°. The Mo(11)-O(28) bond length is 2.25 Å. The Mo(11)-O(38) bond length is 2.07 Å. The Mo(11)-O(43) bond length is 1.97 Å. The Mo(11)-O(47) bond length is 1.94 Å. The Mo(11)-O(48) bond length is 2.10 Å. In the twelfth Mo site, Mo(12) is bonded in a 5-coordinate geometry to one O(28), one O(39), one O(48), one O(49), and one O(50) atom. The Mo(12)-O(28) bond length is 2.33 Å. The Mo(12)-O(39) bond length is 2.02 Å. The Mo(12)-O(48) bond length is 2.10 Å. The Mo(12)-O(49) bond length is 1.93 Å. The Mo(12)-O(50) bond length is 1.97 Å. There are three inequivalent Cd sites. In the first Cd site, Cd(1) is bonded to one O(11), one O(18), one O(32), one O(4), and one O(7) atom to form distorted CdO5 square pyramids that share  a cornercorner with one Mo(2)O5 square pyramid,  a cornercorner with one Mo(3)O5 square pyramid,  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  a cornercorner with one P(6)O4 tetrahedra. The Cd(1)-O(11) bond length is 2.24 Å. The Cd(1)-O(18) bond length is 2.76 Å. The Cd(1)-O(32) bond length is 2.23 Å. The Cd(1)-O(4) bond length is 2.27 Å. The Cd(1)-O(7) bond length is 2.24 Å. In the second Cd site, Cd(2) is bonded to two equivalent O(23), two equivalent O(24), and two equivalent O(25) atoms to form CdO6 octahedra that share corners with two equivalent Mo(1)ClO5 octahedra, corners with two equivalent Mo(2)O5 square pyramids, corners with two equivalent Mo(3)O5 square pyramids, corners with two equivalent Mo(4)O5 square pyramids, and corners with two equivalent Mo(5)O5 square pyramids. The corner-sharing octahedral tilt angles are 50°. Both Cd(2)-O(23) bond lengths are 2.28 Å. Both Cd(2)-O(24) bond lengths are 2.26 Å. Both Cd(2)-O(25) bond lengths are 2.23 Å. In the third Cd site, Cd(3) is bonded to two equivalent O(42), two equivalent O(43), and two equivalent O(50) atoms to form CdO6 octahedra that share corners with two equivalent Mo(10)O5 square pyramids, corners with two equivalent Mo(11)O5 square pyramids, corners with two equivalent Mo(7)O5 square pyramids, corners with two equivalent Mo(8)O5 square pyramids, and corners with two equivalent Mo(9)O5 square pyramids. Both Cd(3)-O(42) bond lengths are 2.26 Å. Both Cd(3)-O(43) bond lengths are 2.28 Å. Both Cd(3)-O(50) bond lengths are 2.23 Å. C(1) is bonded in a 3-coordinate geometry to one N(1) and two equivalent H(16,17) atoms. The C(1)-N(1) bond length is 1.45 Å. Both C(1)-H(16,17) bond lengths are 0.97 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 Mo(1)ClO5 octahedra,  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 Cd(1)O5 square pyramid. The corner-sharing octahedral tilt angles are 54°. The P(1)-O(1) bond length is 1.56 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(4) bond length is 1.51 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 Mo(1)ClO5 octahedra,  a cornercorner with one Mo(2)O5 square pyramid, and  a cornercorner with one Cd(1)O5 square pyramid. The corner-sharing octahedral tilt angles are 47°. The P(2)-O(5) bond length is 1.55 Å. The P(2)-O(6) bond length is 1.54 Å. The P(2)-O(7) bond length is 1.51 Å. The P(2)-O(8) bond length is 1.54 Å. In the third P site, P(3) 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 Mo(5)O5 square pyramid. The P(3)-O(13) bond length is 1.54 Å. The P(3)-O(14) bond length is 1.54 Å. The P(3)-O(15) bond length is 1.52 Å. The P(3)-O(16) bond length is 1.56 Å. In the fourth P site, P(4) 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 Mo(3)O5 square pyramid,  a cornercorner with one Mo(4)O5 square pyramid, and  a cornercorner with one Cd(1)O5 square pyramid. The P(4)-O(10) bond length is 1.56 Å. The P(4)-O(11) bond length is 1.52 Å. The P(4)-O(12) bond length is 1.52 Å. The P(4)-O(9) bond length is 1.57 Å. In the fifth P site, P(5) is bonded to one O(26), one O(27), one O(28), and one O(29) 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(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(26) bond length is 1.56 Å. The P(5)-O(27) bond length is 1.55 Å. The P(5)-O(28) bond length is 1.55 Å. The P(5)-O(29) bond length is 1.50 Å. In the sixth P site, P(6) is bonded to one O(30), one O(31), one O(32), and one O(33) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(7)O5 square pyramid,  a cornercorner with one Mo(8)O5 square pyramid, and  a cornercorner with one Cd(1)O5 square pyramid. The P(6)-O(30) bond length is 1.54 Å. The P(6)-O(31) bond length is 1.53 Å. The P(6)-O(32) bond length is 1.49 Å. The P(6)-O(33) bond length is 1.56 Å. In the seventh P site, P(7) is bonded to one O(34), one O(35), one O(36), and one O(37) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(10)O5 square pyramid and  a cornercorner with one Mo(9)O5 square pyramid. The P(7)-O(34) bond length is 1.54 Å. The P(7)-O(35) bond length is 1.55 Å. The P(7)-O(36) bond length is 1.57 Å. The P(7)-O(37) bond length is 1.49 Å. In the eighth P site, P(8) is bonded to one O(38), one O(39), one O(40), and one O(41) atom to form PO4 tetrahedra that share  a cornercorner with one Mo(11)O5 square pyramid. The P(8)-O(38) bond length is 1.56 Å. The P(8)-O(39) bond length is 1.55 Å. The P(8)-O(40) bond length is 1.52 Å. The P(8)-O(41) bond length is 1.52 Å. N(1) is bonded in a distorted water-like geometry to one Mg(1), one C(1), one H(1), and one H(2) atom. The N(1)-H(1) bond length is 0.90 Å. The N(1)-H(2) bond length is 0.90 Å. There are thirteen inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(1) atom. In the third H site, H(6) is bonded in a distorted single-bond geometry to one O(16) and one O(8) atom. The H(6)-O(16) bond length is 0.85 Å. The H(6)-O(8) bond length is 1.63 Å. In the fourth H site, H(7) is bonded in a single-bond geometry to one O(17) atom. The H(7)-O(17) bond length is 0.85 Å. In the fifth H site, H(8) is bonded in a single-bond geometry to one O(19) atom. The H(8)-O(19) bond length is 0.85 Å. In the sixth H site, H(9) is bonded in a single-bond geometry to one O(21) atom. The H(9)-O(21) bond length is 0.85 Å. In the seventh H site, H(10) is bonded in a single-bond geometry to one O(33) atom. The H(10)-O(33) bond length is 0.85 Å. In the eighth H site, H(11) is bonded in a single-bond geometry to one O(37) atom. The H(11)-O(37) bond length is 0.85 Å. In the ninth H site, H(12) is bonded in a single-bond geometry to one O(44) atom. The H(12)-O(44) bond length is 0.85 Å. In the tenth H site, H(13) is bonded in a single-bond geometry to one O(46) atom. The H(13)-O(46) bond length is 0.85 Å. In the eleventh H site, H(14) is bonded in a single-bond geometry to one O(48) atom. The H(14)-O(48) bond length is 0.85 Å. In the twelfth H site, H(15) is bonded in a single-bond geometry to one O(49) atom. The H(15)-O(49) bond length is 0.85 Å. In the thirteenth H site, H(16,17) is bonded in a single-bond geometry to one C(1) atom. There are fifty inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Mo(1), one Mo(2), and one P(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Mo(3), one Mo(4), and one P(1) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Mo(5), one Mo(6), and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Cd(1) and one P(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Mo(2) and one P(2) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Cd(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one P(2), and one H(6) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Mo(3) and one P(4) atom. In the tenth O site, O(10) is bonded in a distorted single-bond geometry to one Mo(4) and one P(4) atom. In the eleventh O site, O(11) is bonded in a bent 120 degrees geometry to one Cd(1) and one P(4) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one P(4) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one Mo(5) and one P(3) atom. In the fourteenth O site, O(14) is bonded in a distorted bent 150 degrees geometry to one Mo(6) and one P(3) atom. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one P(3) atom. In the sixteenth O site, O(16) is bonded in a water-like geometry to one P(3) and one H(6) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one Mo(1), one Mo(2), and one H(7) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Mo(2), one Mo(3), and one Cd(1) atom. In the nineteenth O site, O(19) is bonded in a distorted single-bond geometry to one Mo(3), one Mo(4), and one H(8) atom. In the twentieth O site, O(20) is bonded in an L-shaped geometry to one Mo(4) and one Mo(5) atom. In the twenty-first O site, O(21) is bonded in a distorted trigonal non-coplanar geometry to one Mo(5), one Mo(6), and one H(9) atom. In the twenty-second O site, O(22) is bonded in an L-shaped geometry to one Mo(1) and one Mo(6) atom. In the twenty-third O site, O(23) is bonded in a 3-coordinate geometry to one Mo(2), one Mo(3), and one Cd(2) atom. In the twenty-fourth O site, O(24) is bonded in a 3-coordinate geometry to one Mo(4), one Mo(5), and one Cd(2) atom. In the twenty-fifth O site, O(25) is bonded in a 3-coordinate geometry to one Mo(1), one Mo(6), and one Cd(2) atom. In the twenty-sixth O site, O(26) is bonded in a distorted single-bond geometry to one Mo(7), one Mo(8), and one P(5) atom. In the twenty-seventh O site, O(27) is bonded in a distorted single-bond geometry to one Mo(10), one Mo(9), and one P(5) atom. In the twenty-eighth O site, O(28) is bonded in a distorted single-bond geometry to one Mo(11), one Mo(12), and one P(5) atom. In the twenty-ninth O site, O(29) is bonded in a single-bond geometry to one P(5) atom. In the thirtieth O site, O(30) is bonded in a distorted single-bond geometry to one Mo(7) and one P(6) atom. In the thirty-first O site, O(31) is bonded in a distorted single-bond geometry to one Mo(8) and one P(6) atom. In the thirty-second O site, O(32) is bonded in a distorted bent 150 degrees geometry to one Cd(1) and one P(6) atom. In the thirty-third O site, O(33) is bonded in a water-like geometry to one P(6) and one H(10) atom. In the thirty-fourth O site, O(34) is bonded in a distorted single-bond geometry to one Mo(9) and one P(7) atom. In the thirty-fifth O site, O(35) is bonded in a distorted bent 120 degrees geometry to one Mo(10) and one P(7) atom. In the thirty-sixth O site, O(36) is bonded in a bent 120 degrees geometry to one Mg(1) and one P(7) atom. In the thirty-seventh O site, O(37) is bonded in a water-like geometry to one P(7) and one H(11) atom. In the thirty-eighth O site, O(38) is bonded in a distorted bent 150 degrees geometry to one Mo(11) and one P(8) atom. In the thirty-ninth O site, O(39) is bonded in a distorted bent 150 degrees geometry to one Mo(12) and one P(8) atom. In the fortieth O site, O(40) is bonded in a single-bond geometry to one P(8) atom. In the forty-first O site, O(41) is bonded in a distorted bent 120 degrees geometry to one Mg(1) and one P(8) atom. In the forty-second O site, O(42) is bonded in a 3-coordinate geometry to one Mo(8), one Mo(9), and one Cd(3) atom. In the forty-third O site, O(43) is bonded in a 3-coordinate geometry to one Mo(10), one Mo(11), and one Cd(3) atom. In the forty-fourth O site, O(44) is bonded in a distorted trigonal non-coplanar geometry to one Mo(7), one Mo(8), and one H(12) atom. In the forty-fifth O site, O(45) is bonded in an L-shaped geometry to one Mo(8) and one Mo(9) atom. In the forty-sixth O site, O(46) is bonded in a distorted trigonal non-coplanar geometry to one Mo(10), one Mo(9), and one H(13) atom. In the forty-seventh O site, O(47) is bonded in an L-shaped geometry to one Mo(10) and one Mo(11) atom. In the forty-eighth O site, O(48) is bonded in a distorted trigonal non-coplanar geometry to one Mo(11), one Mo(12), and one H(14) atom. In the forty-ninth O site, O(49) is bonded in a distorted trigonal non-coplanar geometry to one Mo(12), one Mo(7), and one H(15) atom. In the fiftieth O site, O(50) is bonded in a 3-coordinate geometry to one Mo(12), one Mo(7), and one Cd(3) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a single-bond geometry to one Mo(6) atom. In the second Cl site, Cl(2) is bonded in a single-bond geometry to one Mo(1) atom. Linkers: 10 [O]P([O])([O])=O ,14 [OH] ,6 [O]P([O])(=O)O. Metal clusters: 2 [Mg] ,4 [Cd] ,24 [Mo]. The MOF has largest included sphere 5.40 A, density 2.41 g/cm3, surface area 1933.75 m2/g, accessible volume 0.16 cm3/g