Mn4C30NH11O20CH3CN crystallizes in the triclinic P-1 space group. The structure consists of two dimethylamine molecules inside a Mn4C30NH11O20 framework. In the Mn4C30NH11O20 framework, there are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(12), one O(18), and one O(3) atom. The Mn(1)-O(1) bond length is 2.21 Å. The Mn(1)-O(12) bond length is 2.09 Å. The Mn(1)-O(18) bond length is 2.19 Å. The Mn(1)-O(3) bond length is 2.17 Å. In the second Mn site, Mn(2) is bonded in a rectangular see-saw-like geometry to one O(19), one O(2), one O(7), and one O(9) atom. The Mn(2)-O(19) bond length is 2.15 Å. The Mn(2)-O(2) bond length is 2.21 Å. The Mn(2)-O(7) bond length is 2.14 Å. The Mn(2)-O(9) bond length is 2.11 Å. In the third Mn site, Mn(3) is bonded in a rectangular see-saw-like geometry to one O(16), one O(20), one O(6), and one O(8) atom. The Mn(3)-O(16) bond length is 2.16 Å. The Mn(3)-O(20) bond length is 2.12 Å. The Mn(3)-O(6) bond length is 2.18 Å. The Mn(3)-O(8) bond length is 2.18 Å. In the fourth Mn site, Mn(4) is bonded in a rectangular see-saw-like geometry to one O(13), one O(17), one O(4), and one O(5) atom. The Mn(4)-O(13) bond length is 2.15 Å. The Mn(4)-O(17) bond length is 2.17 Å. The Mn(4)-O(4) bond length is 2.18 Å. The Mn(4)-O(5) bond length is 2.17 Å. There are thirty inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(2), one C(6), and one C(7) atom. The C(1)-C(2) bond length is 1.40 Å. The C(1)-C(6) bond length is 1.39 Å. The C(1)-C(7) bond length is 1.50 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(8) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(8) bond length is 1.52 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(1) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-H(1) bond length is 0.89 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(9) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-C(9) bond length is 1.51 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(10), one C(4), and one C(6) atom. The C(5)-C(10) bond length is 1.51 Å. The C(5)-C(6) bond length is 1.39 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(1), one C(5), and one H(2) atom. The C(6)-H(2) bond length is 0.93 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.27 Å. The C(7)-O(2) bond length is 1.25 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.27 Å. The C(8)-O(4) bond length is 1.24 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(5), and one O(6) atom. The C(9)-O(5) bond length is 1.24 Å. The C(9)-O(6) bond length is 1.25 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(7), and one O(8) atom. The C(10)-O(7) bond length is 1.25 Å. The C(10)-O(8) bond length is 1.25 Å. In the eleventh C site, C(11) is bonded in a trigonal planar geometry to one C(12), one C(13), and one C(14) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-C(13) bond length is 1.39 Å. The C(11)-C(14) bond length is 1.51 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(15) atom. The C(12)-C(13) bond length is 1.39 Å. The C(12)-C(15) bond length is 1.51 Å. In the thirteenth C site, C(13) is bonded in a distorted single-bond geometry to one C(11), one C(12), and one H(3) atom. The C(13)-H(3) bond length is 0.92 Å. In the fourteenth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(11), one O(10), and one O(9) atom. The C(14)-O(10) bond length is 1.25 Å. The C(14)-O(9) bond length is 1.26 Å. In the fifteenth C site, C(15) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(11), and one O(12) atom. The C(15)-O(11) bond length is 1.24 Å. The C(15)-O(12) bond length is 1.25 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one C(17), one C(18), and one C(19) atom. The C(16)-C(17) bond length is 1.40 Å. The C(16)-C(18) bond length is 1.39 Å. The C(16)-C(19) bond length is 1.51 Å. In the seventeenth C site, C(17) is bonded in a trigonal planar geometry to one C(16), one C(18), and one C(20) atom. The C(17)-C(18) bond length is 1.39 Å. The C(17)-C(20) bond length is 1.51 Å. In the eighteenth C site, C(18) is bonded in a distorted single-bond geometry to one C(16), one C(17), and one H(4) atom. The C(18)-H(4) bond length is 0.89 Å. In the nineteenth C site, C(19) is bonded in a distorted bent 120 degrees geometry to one C(16), one O(13), and one O(14) atom. The C(19)-O(13) bond length is 1.26 Å. The C(19)-O(14) bond length is 1.25 Å. In the twentieth C site, C(20) is bonded in a distorted bent 120 degrees geometry to one C(17), one O(15), and one O(16) atom. The C(20)-O(15) bond length is 1.24 Å. The C(20)-O(16) bond length is 1.27 Å. In the twenty-first C site, C(21) is bonded in a trigonal planar geometry to one C(22), one C(25), and one C(26) atom. The C(21)-C(22) bond length is 1.38 Å. The C(21)-C(25) bond length is 1.39 Å. The C(21)-C(26) bond length is 1.54 Å. In the twenty-second C site, C(22) is bonded in a distorted single-bond geometry to one C(21) and one H(5) atom. The C(22)-H(5) bond length is 0.88 Å. In the twenty-third C site, C(25) is bonded in a distorted single-bond geometry to one C(21) and one H(9) atom. The C(25)-H(9) bond length is 0.88 Å. In the twenty-fourth C site, C(26) is bonded in a distorted bent 120 degrees geometry to one C(21), one O(17), and one O(18) atom. The C(26)-O(17) bond length is 1.24 Å. The C(26)-O(18) bond length is 1.24 Å. In the twenty-fifth C site, C(27) is bonded in a trigonal planar geometry to one C(28), one C(31), and one C(32) atom. The C(27)-C(28) bond length is 1.39 Å. The C(27)-C(31) bond length is 1.38 Å. The C(27)-C(32) bond length is 1.52 Å. In the twenty-sixth C site, C(28) is bonded in a distorted single-bond geometry to one C(27), one C(29), and one H(10) atom. The C(28)-C(29) bond length is 1.38 Å. The C(28)-H(10) bond length is 1.00 Å. In the twenty-seventh C site, C(29) is bonded in a distorted trigonal planar geometry to one C(28), one N(2), and one H(11) atom. The C(29)-N(2) bond length is 1.33 Å. The C(29)-H(11) bond length is 0.93 Å. In the twenty-eighth C site, C(30) is bonded in a distorted trigonal planar geometry to one C(31), one N(2), and one H(13) atom. The C(30)-C(31) bond length is 1.38 Å. The C(30)-N(2) bond length is 1.33 Å. The C(30)-H(13) bond length is 0.95 Å. In the twenty-ninth C site, C(31) is bonded in a distorted single-bond geometry to one C(27), one C(30), and one H(14) atom. The C(31)-H(14) bond length is 0.93 Å. In the thirtieth C site, C(32) is bonded in a distorted bent 120 degrees geometry to one C(27), one O(19), and one O(20) atom. The C(32)-O(19) bond length is 1.24 Å. The C(32)-O(20) bond length is 1.24 Å. N(2) is bonded in a trigonal planar geometry to one C(29), one C(30), and one H(12) atom. The N(2)-H(12) bond length is 0.92 Å. There are eleven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(6) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(13) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(18) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(22) atom. In the sixth H site, H(9) is bonded in a single-bond geometry to one C(25) atom. In the seventh H site, H(10) is bonded in a single-bond geometry to one C(28) atom. In the eighth H site, H(11) is bonded in a single-bond geometry to one C(29) atom. In the ninth H site, H(12) is bonded in a single-bond geometry to one N(2) and one O(15) atom. The H(12)-O(15) bond length is 1.69 Å. In the tenth H site, H(13) is bonded in a single-bond geometry to one C(30) atom. In the eleventh H site, H(14) is bonded in a single-bond geometry to one C(31) atom. There are twenty inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Mn(1) and one C(7) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one C(7) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Mn(1) and one C(8) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one C(8) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to one Mn(4) and one C(9) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Mn(3) and one C(9) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one C(10) atom. In the eighth O site, O(8) is bonded in a 2-coordinate geometry to one Mn(3) and one C(10) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Mn(2) and one C(14) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one C(14) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one C(15) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one C(15) atom. In the thirteenth O site, O(13) is bonded in a distorted bent 120 degrees geometry to one Mn(4) and one C(19) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one C(19) atom. In the fifteenth O site, O(15) is bonded in a distorted bent 120 degrees geometry to one C(20) and one H(12) atom. In the sixteenth O site, O(16) is bonded in a distorted bent 120 degrees geometry to one Mn(3) and one C(20) atom. In the seventeenth O site, O(17) is bonded in a distorted bent 150 degrees geometry to one Mn(4) and one C(26) atom. In the eighteenth O site, O(18) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one C(26) atom. In the nineteenth O site, O(19) is bonded in a bent 150 degrees geometry to one Mn(2) and one C(32) atom. In the twentieth O site, O(20) is bonded in a distorted bent 120 degrees geometry to one Mn(3) and one C(32) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)c(C([O])=O)cc1C([O])=O. Metal clusters: 8 [Mn]. The MOF has largest included sphere 5.69 A, density 1.52 g/cm3, surface area 3829.44 m2/g, accessible volume 0.23 cm3/g