Mn3Fe4Sb6H12(C6O11)4 crystallizes in the orthorhombic P2_12_12_1 space group. There are three inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(12), one O(16), one O(3), one O(41), one O(43), one O(6), and one O(9) atom to form distorted MnO7 pentagonal bipyramids that share  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Fe(3)O6 octahedra. The Mn(1)-O(12) bond length is 2.06 Å. The Mn(1)-O(16) bond length is 2.20 Å. The Mn(1)-O(3) bond length is 2.46 Å. The Mn(1)-O(41) bond length is 2.09 Å. The Mn(1)-O(43) bond length is 2.36 Å. The Mn(1)-O(6) bond length is 2.42 Å. The Mn(1)-O(9) bond length is 2.42 Å. In the second Mn site, Mn(2) is bonded to one O(15), one O(18), one O(29), one O(31), one O(4), and one O(7) atom to form distorted MnO6 pentagonal pyramids that share  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra, and  an edgeedge with one Fe(4)O6 octahedra. The Mn(2)-O(15) bond length is 2.37 Å. The Mn(2)-O(18) bond length is 2.06 Å. The Mn(2)-O(29) bond length is 2.06 Å. The Mn(2)-O(31) bond length is 2.41 Å. The Mn(2)-O(4) bond length is 2.47 Å. The Mn(2)-O(7) bond length is 2.48 Å. In the third Mn site, Mn(3) is bonded to one O(21), one O(24), one O(32), one O(35), one O(37), one O(5), and one O(8) atom to form distorted MnO7 pentagonal bipyramids that share  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Fe(2)O6 octahedra, and  an edgeedge with one Fe(4)O6 octahedra. The Mn(3)-O(21) bond length is 2.34 Å. The Mn(3)-O(24) bond length is 2.08 Å. The Mn(3)-O(32) bond length is 2.21 Å. The Mn(3)-O(35) bond length is 2.07 Å. The Mn(3)-O(37) bond length is 2.39 Å. The Mn(3)-O(5) bond length is 2.45 Å. The Mn(3)-O(8) bond length is 2.49 Å. There are four inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form FeO6 octahedra that share  an edgeedge with one Fe(2)O6 octahedra,  an edgeedge with one Fe(3)O6 octahedra,  an edgeedge with one Fe(4)O6 octahedra,  an edgeedge with one Mn(1)O7 pentagonal bipyramid,  an edgeedge with one Mn(3)O7 pentagonal bipyramid, and  an edgeedge with one Mn(2)O6 pentagonal pyramid. The Fe(1)-O(3) bond length is 2.03 Å. The Fe(1)-O(4) bond length is 2.04 Å. The Fe(1)-O(5) bond length is 2.05 Å. The Fe(1)-O(6) bond length is 2.05 Å. The Fe(1)-O(7) bond length is 2.03 Å. The Fe(1)-O(8) bond length is 2.04 Å. In the second Fe site, Fe(2) is bonded to one O(24), one O(25), one O(3), one O(39), one O(41), and one O(8) atom to form FeO6 octahedra that share  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Mn(1)O7 pentagonal bipyramid, and  an edgeedge with one Mn(3)O7 pentagonal bipyramid. The Fe(2)-O(24) bond length is 1.98 Å. The Fe(2)-O(25) bond length is 1.99 Å. The Fe(2)-O(3) bond length is 2.04 Å. The Fe(2)-O(39) bond length is 2.02 Å. The Fe(2)-O(41) bond length is 1.98 Å. The Fe(2)-O(8) bond length is 2.07 Å. In the third Fe site, Fe(3) is bonded to one O(12), one O(13), one O(27), one O(29), one O(4), and one O(6) atom to form FeO6 octahedra that share  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Mn(1)O7 pentagonal bipyramid, and  an edgeedge with one Mn(2)O6 pentagonal pyramid. The Fe(3)-O(12) bond length is 1.99 Å. The Fe(3)-O(13) bond length is 2.00 Å. The Fe(3)-O(27) bond length is 2.02 Å. The Fe(3)-O(29) bond length is 1.97 Å. The Fe(3)-O(4) bond length is 2.05 Å. The Fe(3)-O(6) bond length is 2.04 Å. In the fourth Fe site, Fe(4) is bonded to one O(18), one O(19), one O(33), one O(35), one O(5), and one O(7) atom to form FeO6 octahedra that share  an edgeedge with one Fe(1)O6 octahedra,  an edgeedge with one Mn(3)O7 pentagonal bipyramid, and  an edgeedge with one Mn(2)O6 pentagonal pyramid. The Fe(4)-O(18) bond length is 1.97 Å. The Fe(4)-O(19) bond length is 2.01 Å. The Fe(4)-O(33) bond length is 2.02 Å. The Fe(4)-O(35) bond length is 1.97 Å. The Fe(4)-O(5) bond length is 2.04 Å. The Fe(4)-O(7) bond length is 2.06 Å. There are twenty-four inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one O(10), and one O(9) atom. The C(1)-C(2) bond length is 1.52 Å. The C(1)-O(10) bond length is 1.23 Å. The C(1)-O(9) bond length is 1.30 Å. In the second C site, C(2) is bonded in a distorted water-like geometry to one C(1), one H(1), and one O(11) atom. The C(2)-H(1) bond length is 0.98 Å. The C(2)-O(11) bond length is 1.43 Å. In the third C site, C(3) is bonded in a distorted water-like geometry to one C(4), one H(2), and one O(12) atom. The C(3)-C(4) bond length is 1.51 Å. The C(3)-H(2) bond length is 0.98 Å. The C(3)-O(12) bond length is 1.45 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one O(13), and one O(14) atom. The C(4)-O(13) bond length is 1.30 Å. The C(4)-O(14) bond length is 1.22 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(15) and one O(16) atom. The C(5)-O(15) bond length is 1.28 Å. The C(5)-O(16) bond length is 1.22 Å. In the sixth C site, C(6) is bonded in a distorted water-like geometry to one H(3) and one O(17) atom. The C(6)-H(3) bond length is 0.98 Å. The C(6)-O(17) bond length is 1.42 Å. In the seventh C site, C(7) is bonded in a distorted water-like geometry to one C(8), one H(4), and one O(18) atom. The C(7)-C(8) bond length is 1.51 Å. The C(7)-H(4) bond length is 0.98 Å. The C(7)-O(18) bond length is 1.43 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(7), one O(19), and one O(20) atom. The C(8)-O(19) bond length is 1.31 Å. The C(8)-O(20) bond length is 1.23 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(10), one O(21), and one O(22) atom. The C(9)-C(10) bond length is 1.54 Å. The C(9)-O(21) bond length is 1.27 Å. The C(9)-O(22) bond length is 1.25 Å. In the tenth C site, C(10) is bonded in a distorted water-like geometry to one C(9), one H(5), and one O(23) atom. The C(10)-H(5) bond length is 0.98 Å. The C(10)-O(23) bond length is 1.42 Å. In the eleventh C site, C(11) is bonded in a distorted water-like geometry to one C(12), one H(6), and one O(24) atom. The C(11)-C(12) bond length is 1.50 Å. The C(11)-H(6) bond length is 0.98 Å. The C(11)-O(24) bond length is 1.40 Å. In the twelfth C site, C(12) is bonded in a distorted trigonal planar geometry to one C(11), one O(25), and one O(26) atom. The C(12)-O(25) bond length is 1.30 Å. The C(12)-O(26) bond length is 1.26 Å. In the thirteenth C site, C(13) is bonded in a distorted trigonal planar geometry to one C(14), one O(27), and one O(28) atom. The C(13)-C(14) bond length is 1.54 Å. The C(13)-O(27) bond length is 1.26 Å. The C(13)-O(28) bond length is 1.24 Å. In the fourteenth C site, C(14) is bonded in a distorted water-like geometry to one C(13), one H(7), and one O(29) atom. The C(14)-H(7) bond length is 0.98 Å. The C(14)-O(29) bond length is 1.41 Å. In the fifteenth C site, C(15) is bonded in a distorted water-like geometry to one H(8) and one O(30) atom. The C(15)-H(8) bond length is 0.98 Å. The C(15)-O(30) bond length is 1.44 Å. In the sixteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one O(31) and one O(32) atom. The C(16)-O(31) bond length is 1.29 Å. The C(16)-O(32) bond length is 1.20 Å. In the seventeenth C site, C(17) is bonded in a distorted trigonal planar geometry to one C(18), one O(33), and one O(34) atom. The C(17)-C(18) bond length is 1.50 Å. The C(17)-O(33) bond length is 1.33 Å. The C(17)-O(34) bond length is 1.20 Å. In the eighteenth C site, C(18) is bonded in a distorted water-like geometry to one C(17), one H(9), and one O(35) atom. The C(18)-H(9) bond length is 0.98 Å. The C(18)-O(35) bond length is 1.43 Å. In the nineteenth C site, C(19) is bonded in a distorted water-like geometry to one H(10) and one O(36) atom. The C(19)-H(10) bond length is 0.98 Å. The C(19)-O(36) bond length is 1.39 Å. In the twentieth C site, C(20) is bonded in a distorted bent 120 degrees geometry to one O(37) and one O(38) atom. The C(20)-O(37) bond length is 1.28 Å. The C(20)-O(38) bond length is 1.21 Å. In the twenty-first C site, C(21) is bonded in a distorted trigonal planar geometry to one C(22), one O(39), and one O(40) atom. The C(21)-C(22) bond length is 1.50 Å. The C(21)-O(39) bond length is 1.27 Å. The C(21)-O(40) bond length is 1.23 Å. In the twenty-second C site, C(22) is bonded in a distorted water-like geometry to one C(21), one H(11), and one O(41) atom. The C(22)-H(11) bond length is 0.98 Å. The C(22)-O(41) bond length is 1.40 Å. In the twenty-third C site, C(23) is bonded in a distorted water-like geometry to one C(24), one H(12), and one O(42) atom. The C(23)-C(24) bond length is 1.56 Å. The C(23)-H(12) bond length is 0.98 Å. The C(23)-O(42) bond length is 1.39 Å. In the twenty-fourth C site, C(24) is bonded in a distorted trigonal planar geometry to one C(23), one O(43), and one O(44) atom. The C(24)-O(43) bond length is 1.30 Å. The C(24)-O(44) bond length is 1.23 Å. There are six inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(23), one O(3), and one O(9) atom. The Sb(1)-O(1) bond length is 2.11 Å. The Sb(1)-O(11) bond length is 2.01 Å. The Sb(1)-O(23) bond length is 2.67 Å. The Sb(1)-O(3) bond length is 2.00 Å. The Sb(1)-O(9) bond length is 2.32 Å. In the second Sb site, Sb(2) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(15), one O(17), and one O(4) atom. The Sb(2)-O(1) bond length is 2.06 Å. The Sb(2)-O(11) bond length is 2.58 Å. The Sb(2)-O(15) bond length is 2.41 Å. The Sb(2)-O(17) bond length is 2.02 Å. The Sb(2)-O(4) bond length is 2.00 Å. In the third Sb site, Sb(3) is bonded in a distorted single-bond geometry to one O(1), one O(21), and one O(5) atom. The Sb(3)-O(1) bond length is 2.06 Å. The Sb(3)-O(21) bond length is 2.38 Å. The Sb(3)-O(5) bond length is 1.99 Å. In the fourth Sb site, Sb(4) is bonded in a 1-coordinate geometry to one O(2), one O(43), and one O(6) atom. The Sb(4)-O(2) bond length is 2.07 Å. The Sb(4)-O(43) bond length is 2.34 Å. The Sb(4)-O(6) bond length is 2.00 Å. In the fifth Sb site, Sb(5) is bonded in a 5-coordinate geometry to one O(2), one O(30), one O(31), one O(36), and one O(7) atom. The Sb(5)-O(2) bond length is 2.08 Å. The Sb(5)-O(30) bond length is 2.03 Å. The Sb(5)-O(31) bond length is 2.38 Å. The Sb(5)-O(36) bond length is 2.60 Å. The Sb(5)-O(7) bond length is 1.99 Å. In the sixth Sb site, Sb(6) is bonded in a 5-coordinate geometry to one O(2), one O(36), one O(37), one O(42), and one O(8) atom. The Sb(6)-O(2) bond length is 2.09 Å. The Sb(6)-O(36) bond length is 2.03 Å. The Sb(6)-O(37) bond length is 2.34 Å. The Sb(6)-O(42) bond length is 2.63 Å. The Sb(6)-O(8) bond length is 1.97 Å. There are twelve inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(6) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(7) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(11) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(14) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(15) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(18) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(19) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(22) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(23) atom. There are forty-four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Sb(1), one Sb(2), and one Sb(3) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to one Sb(4), one Sb(5), and one Sb(6) atom. In the third O site, O(3) is bonded to one Mn(1), one Fe(1), one Fe(2), and one Sb(1) atom to form a mixture of distorted edge and corner-sharing OMnFe2Sb tetrahedra. In the fourth O site, O(4) is bonded to one Mn(2), one Fe(1), one Fe(3), and one Sb(2) atom to form a mixture of distorted edge and corner-sharing OMnFe2Sb tetrahedra. In the fifth O site, O(5) is bonded to one Mn(3), one Fe(1), one Fe(4), and one Sb(3) atom to form a mixture of distorted edge and corner-sharing OMnFe2Sb trigonal pyramids. In the sixth O site, O(6) is bonded to one Mn(1), one Fe(1), one Fe(3), and one Sb(4) atom to form a mixture of distorted edge and corner-sharing OMnFe2Sb tetrahedra. In the seventh O site, O(7) is bonded to one Mn(2), one Fe(1), one Fe(4), and one Sb(5) atom to form a mixture of distorted edge and corner-sharing OMnFe2Sb trigonal pyramids. In the eighth O site, O(8) is bonded in a distorted rectangular see-saw-like geometry to one Mn(3), one Fe(1), one Fe(2), and one Sb(6) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one C(1), and one Sb(1) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one C(1) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one C(2), one Sb(1), and one Sb(2) atom. In the twelfth O site, O(12) is bonded in a distorted trigonal planar geometry to one Mn(1), one Fe(3), and one C(3) atom. In the thirteenth O site, O(13) is bonded in a bent 120 degrees geometry to one Fe(3) and one C(4) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one C(4) atom. In the fifteenth O site, O(15) is bonded in a distorted single-bond geometry to one Mn(2), one C(5), and one Sb(2) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one Mn(1) and one C(5) atom. In the seventeenth O site, O(17) is bonded in a distorted bent 120 degrees geometry to one C(6) and one Sb(2) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal planar geometry to one Mn(2), one Fe(4), and one C(7) atom. In the nineteenth O site, O(19) is bonded in a bent 120 degrees geometry to one Fe(4) and one C(8) atom. In the twentieth O site, O(20) is bonded in a single-bond geometry to one C(8) atom. In the twenty-first O site, O(21) is bonded in a distorted trigonal non-coplanar geometry to one Mn(3), one C(9), and one Sb(3) atom. In the twenty-second O site, O(22) is bonded in a single-bond geometry to one C(9) atom. In the twenty-third O site, O(23) is bonded in a distorted single-bond geometry to one C(10) and one Sb(1) atom. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Mn(3), one Fe(2), and one C(11) atom. In the twenty-fifth O site, O(25) is bonded in a bent 120 degrees geometry to one Fe(2) and one C(12) atom. In the twenty-sixth O site, O(26) is bonded in a single-bond geometry to one C(12) atom. In the twenty-seventh O site, O(27) is bonded in a bent 120 degrees geometry to one Fe(3) and one C(13) atom. In the twenty-eighth O site, O(28) is bonded in a single-bond geometry to one C(13) atom. In the twenty-ninth O site, O(29) is bonded in a distorted trigonal planar geometry to one Mn(2), one Fe(3), and one C(14) atom. In the thirtieth O site, O(30) is bonded in a distorted bent 120 degrees geometry to one C(15) and one Sb(5) atom. In the thirty-first O site, O(31) is bonded in a distorted single-bond geometry to one Mn(2), one C(16), and one Sb(5) atom. In the thirty-second O site, O(32) is bonded in a bent 150 degrees geometry to one Mn(3) and one C(16) atom. In the thirty-third O site, O(33) is bonded in a bent 120 degrees geometry to one Fe(4) and one C(17) atom. In the thirty-fourth O site, O(34) is bonded in a single-bond geometry to one C(17) atom. In the thirty-fifth O site, O(35) is bonded in a distorted trigonal planar geometry to one Mn(3), one Fe(4), and one C(18) atom. In the thirty-sixth O site, O(36) is bonded in a distorted single-bond geometry to one C(19), one Sb(5), and one Sb(6) atom. In the thirty-seventh O site, O(37) is bonded in a distorted trigonal non-coplanar geometry to one Mn(3), one C(20), and one Sb(6) atom. In the thirty-eighth O site, O(38) is bonded in a single-bond geometry to one C(20) atom. In the thirty-ninth O site, O(39) is bonded in a bent 120 degrees geometry to one Fe(2) and one C(21) atom. In the fortieth O site, O(40) is bonded in a single-bond geometry to one C(21) atom. In the forty-first O site, O(41) is bonded in a distorted trigonal planar geometry to one Mn(1), one Fe(2), and one C(22) atom. In the forty-second O site, O(42) is bonded in a distorted single-bond geometry to one C(23) and one Sb(6) atom. In the forty-third O site, O(43) is bonded in a distorted trigonal non-coplanar geometry to one Mn(1), one C(24), and one Sb(4) atom. In the forty-fourth O site, O(44) is bonded in a single-bond geometry to one C(24) atom. Linkers: 3 [O]C(=O)[C@H]([O])[C@@H](O[Sb]([O])O[Sb]([O])O[C@@H](C([O])=O)[C@@H]([O])C([O])=O)C([O])=O.[O]C(=O)[C@H]([O])[C@H]1O[Sb]([O])OC1=O ,5 [O]C(=O)[C@H]([O])[C@@H](O[Sb]([O])O[Sb]([O])O[C@@H](C([O])=O)[C@@H]([O])C([O])=O)C([O])=O.[O][Sb]O[C@@H](C([O])=O)[C@@H]([O])C([O])=O. Metal clusters: 12 [Mn] ,16 [Fe]. The MOF has largest included sphere 8.08 A, density 1.61 g/cm3, surface area 1805.09 m2/g, accessible volume 0.36 cm3/g