MnH6(C8O3)2 crystallizes in the triclinic P-1 space group. There are four inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in an octahedral geometry to one O(1), one O(11), one O(2), one O(4), one O(6), and one O(8) atom. The Mn(1)-O(1) bond length is 2.15 Å. The Mn(1)-O(11) bond length is 2.15 Å. The Mn(1)-O(2) bond length is 2.19 Å. The Mn(1)-O(4) bond length is 2.18 Å. The Mn(1)-O(6) bond length is 2.08 Å. The Mn(1)-O(8) bond length is 2.34 Å. In the second Mn site, Mn(2) is bonded in a 5-coordinate geometry to one O(10), one O(13), one O(3), one O(4), and one O(8) atom. The Mn(2)-O(10) bond length is 2.20 Å. The Mn(2)-O(13) bond length is 2.33 Å. The Mn(2)-O(3) bond length is 2.07 Å. The Mn(2)-O(4) bond length is 2.27 Å. The Mn(2)-O(8) bond length is 2.19 Å. In the third Mn site, Mn(3) is bonded in a rectangular see-saw-like geometry to one O(1), one O(12), one O(16), and one O(9) atom. The Mn(3)-O(1) bond length is 2.35 Å. The Mn(3)-O(12) bond length is 2.24 Å. The Mn(3)-O(16) bond length is 2.16 Å. The Mn(3)-O(9) bond length is 2.10 Å. In the fourth Mn site, Mn(4) is bonded in an octahedral geometry to two equivalent O(10), two equivalent O(5), and two equivalent O(7) atoms. Both Mn(4)-O(10) bond lengths are 2.32 Å. Both Mn(4)-O(5) bond lengths are 2.18 Å. Both Mn(4)-O(7) bond lengths are 2.12 Å. There are fifty-six inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one C(21), one C(22), and one C(5) atom. The C(1)-C(21) bond length is 1.37 Å. The C(1)-C(22) bond length is 1.44 Å. The C(1)-C(5) bond length is 1.42 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(23), one C(6), and one H(1) atom. The C(2)-C(23) bond length is 1.40 Å. The C(2)-C(6) bond length is 1.40 Å. The C(2)-H(1) bond length is 0.95 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(17), one C(28), and one C(9) atom. The C(3)-C(17) bond length is 1.49 Å. The C(3)-C(28) bond length is 1.37 Å. The C(3)-C(9) bond length is 1.36 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(12), one C(13), and one C(15) atom. The C(4)-C(12) bond length is 1.35 Å. The C(4)-C(13) bond length is 1.51 Å. The C(4)-C(15) bond length is 1.42 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(1), one C(15), and one C(18) atom. The C(5)-C(15) bond length is 1.38 Å. The C(5)-C(18) bond length is 1.47 Å. In the sixth C site, C(6) is bonded in a trigonal planar geometry to one C(2), one C(30), and one C(32) atom. The C(6)-C(30) bond length is 1.39 Å. The C(6)-C(32) bond length is 1.50 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(1), and one O(12) atom. The C(7)-C(10) bond length is 1.49 Å. The C(7)-O(1) bond length is 1.29 Å. The C(7)-O(12) bond length is 1.25 Å. In the eighth C site, C(8) is bonded in a trigonal planar geometry to one C(24), one C(25), and one C(47) atom. The C(8)-C(24) bond length is 1.42 Å. The C(8)-C(25) bond length is 1.49 Å. The C(8)-C(47) bond length is 1.36 Å. In the ninth C site, C(9) is bonded in a distorted trigonal planar geometry to one C(14), one C(3), and one H(2) atom. The C(9)-C(14) bond length is 1.42 Å. The C(9)-H(2) bond length is 0.95 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(36), one C(44), and one C(7) atom. The C(10)-C(36) bond length is 1.39 Å. The C(10)-C(44) bond length is 1.40 Å. In the eleventh C site, C(11) is bonded in a distorted bent 120 degrees geometry to one C(35), one O(5), and one O(8) atom. The C(11)-C(35) bond length is 1.48 Å. The C(11)-O(5) bond length is 1.23 Å. The C(11)-O(8) bond length is 1.26 Å. In the twelfth C site, C(12) is bonded in a distorted single-bond geometry to one C(21), one C(4), and one H(3) atom. The C(12)-C(21) bond length is 1.41 Å. The C(12)-H(3) bond length is 0.95 Å. In the thirteenth C site, C(13) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(10), and one O(2) atom. The C(13)-O(10) bond length is 1.30 Å. The C(13)-O(2) bond length is 1.19 Å. In the fourteenth C site, C(14) is bonded in a trigonal planar geometry to one C(18), one C(19), and one C(9) atom. The C(14)-C(18) bond length is 1.47 Å. The C(14)-C(19) bond length is 1.39 Å. In the fifteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(4), one C(5), and one H(4) atom. The C(15)-H(4) bond length is 0.95 Å. In the sixteenth C site, C(16) is bonded in a trigonal planar geometry to one C(24), one C(32), and one C(39) atom. The C(16)-C(24) bond length is 1.40 Å. The C(16)-C(32) bond length is 1.44 Å. The C(16)-C(39) bond length is 1.37 Å. In the seventeenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(3), and one O(7) atom. The C(17)-O(3) bond length is 1.26 Å. The C(17)-O(7) bond length is 1.26 Å. In the eighteenth C site, C(18) is bonded in a distorted single-bond geometry to one C(14), one C(5), and one O(14) atom. The C(18)-O(14) bond length is 1.23 Å. In the nineteenth C site, C(19) is bonded in a trigonal planar geometry to one C(14), one C(20), and one C(22) atom. The C(19)-C(20) bond length is 1.37 Å. The C(19)-C(22) bond length is 1.51 Å. In the twentieth C site, C(20) is bonded in a distorted single-bond geometry to one C(19) and one H(5) atom. The C(20)-H(5) bond length is 0.95 Å. In the twenty-first C site, C(21) is bonded in a distorted trigonal planar geometry to one C(1), one C(12), and one H(6) atom. The C(21)-H(6) bond length is 0.95 Å. In the twenty-second C site, C(22) is bonded in a distorted single-bond geometry to one C(1), one C(19), and one O(15) atom. The C(22)-O(15) bond length is 1.25 Å. In the twenty-third C site, C(23) is bonded in a trigonal planar geometry to one C(2), one C(29), and one C(31) atom. The C(23)-C(29) bond length is 1.32 Å. The C(23)-C(31) bond length is 1.46 Å. In the twenty-fourth C site, C(24) is bonded in a distorted trigonal planar geometry to one C(16), one C(8), and one H(7) atom. The C(24)-H(7) bond length is 0.95 Å. In the twenty-fifth C site, C(25) is bonded in a distorted bent 120 degrees geometry to one C(8), one O(11), and one O(9) atom. The C(25)-O(11) bond length is 1.26 Å. The C(25)-O(9) bond length is 1.26 Å. In the twenty-sixth C site, C(26) is bonded in a distorted single-bond geometry to one C(35), one C(40), and one H(8) atom. The C(26)-C(35) bond length is 1.38 Å. The C(26)-C(40) bond length is 1.43 Å. The C(26)-H(8) bond length is 0.95 Å. In the twenty-seventh C site, C(27) is bonded in a trigonal planar geometry to one C(42), one C(46), and one C(50) atom. The C(27)-C(42) bond length is 1.39 Å. The C(27)-C(46) bond length is 1.43 Å. The C(27)-C(50) bond length is 1.50 Å. In the twenty-eighth C site, C(28) is bonded in a single-bond geometry to one C(3) and one H(9) atom. The C(28)-H(9) bond length is 0.95 Å. In the twenty-ninth C site, C(29) is bonded in a single-bond geometry to one C(23) and one H(10) atom. The C(29)-H(10) bond length is 0.95 Å. In the thirtieth C site, C(30) is bonded in a trigonal planar geometry to one C(45), one C(53), and one C(6) atom. The C(30)-C(45) bond length is 1.47 Å. The C(30)-C(53) bond length is 1.42 Å. In the thirty-first C site, C(31) is bonded in a distorted bent 120 degrees geometry to one C(23), one O(13), and one O(4) atom. The C(31)-O(13) bond length is 1.24 Å. The C(31)-O(4) bond length is 1.29 Å. In the thirty-second C site, C(32) is bonded in a distorted trigonal planar geometry to one C(16), one C(6), and one O(17) atom. The C(32)-O(17) bond length is 1.22 Å. In the thirty-third C site, C(33) is bonded in a trigonal planar geometry to one C(38), one C(41), and one C(46) atom. The C(33)-C(38) bond length is 1.51 Å. The C(33)-C(41) bond length is 1.41 Å. The C(33)-C(46) bond length is 1.37 Å. In the thirty-fourth C site, C(34) is bonded in a distorted single-bond geometry to one C(35) and one H(11) atom. The C(34)-C(35) bond length is 1.37 Å. The C(34)-H(11) bond length is 0.95 Å. In the thirty-fifth C site, C(35) is bonded in a trigonal planar geometry to one C(11), one C(26), and one C(34) atom. In the thirty-sixth C site, C(36) is bonded in a single-bond geometry to one C(10) and one H(12) atom. The C(36)-H(12) bond length is 0.95 Å. In the thirty-seventh C site, C(37) is bonded in a trigonal planar geometry to one C(40), one C(43), and one C(56) atom. The C(37)-C(40) bond length is 1.36 Å. The C(37)-C(43) bond length is 1.41 Å. The C(37)-C(56) bond length is 1.48 Å. In the thirty-eighth C site, C(38) is bonded in a distorted bent 120 degrees geometry to one C(33), one O(16), and one O(6) atom. The C(38)-O(16) bond length is 1.26 Å. The C(38)-O(6) bond length is 1.25 Å. In the thirty-ninth C site, C(39) is bonded in a trigonal planar geometry to one C(16), one C(45), and one C(49) atom. The C(39)-C(45) bond length is 1.47 Å. The C(39)-C(49) bond length is 1.39 Å. In the fortieth C site, C(40) is bonded in a trigonal planar geometry to one C(26), one C(37), and one C(50) atom. The C(40)-C(50) bond length is 1.46 Å. In the forty-first C site, C(41) is bonded in a distorted single-bond geometry to one C(33) and one H(13) atom. The C(41)-H(13) bond length is 0.95 Å. In the forty-second C site, C(42) is bonded in a trigonal planar geometry to one C(27), one C(54), and one C(56) atom. The C(42)-C(54) bond length is 1.36 Å. The C(42)-C(56) bond length is 1.47 Å. In the forty-third C site, C(43) is bonded in a distorted single-bond geometry to one C(37) and one H(14) atom. The C(43)-H(14) bond length is 0.95 Å. In the forty-fourth C site, C(44) is bonded in a distorted trigonal planar geometry to one C(10), one C(51), and one H(15) atom. The C(44)-C(51) bond length is 1.37 Å. The C(44)-H(15) bond length is 0.95 Å. In the forty-fifth C site, C(45) is bonded in a distorted single-bond geometry to one C(30), one C(39), and one O(18) atom. The C(45)-O(18) bond length is 1.24 Å. In the forty-sixth C site, C(46) is bonded in a distorted trigonal planar geometry to one C(27), one C(33), and one H(16) atom. The C(46)-H(16) bond length is 0.95 Å. In the forty-seventh C site, C(47) is bonded in a distorted single-bond geometry to one C(8) and one H(17) atom. The C(47)-H(17) bond length is 0.95 Å. In the forty-eighth C site, C(48) is bonded in a trigonal planar geometry to one C(51), one C(52), and one C(55) atom. The C(48)-C(51) bond length is 1.41 Å. The C(48)-C(52) bond length is 1.37 Å. The C(48)-C(55) bond length is 1.48 Å. In the forty-ninth C site, C(49) is bonded in a distorted single-bond geometry to one C(39) and one H(18) atom. The C(49)-H(18) bond length is 0.95 Å. In the fiftieth C site, C(50) is bonded in a distorted single-bond geometry to one C(27), one C(40), and one O(19) atom. The C(50)-O(19) bond length is 1.23 Å. In the fifty-first C site, C(51) is bonded in a trigonal planar geometry to one C(44), one C(48), and one C(55) atom. The C(51)-C(55) bond length is 1.46 Å. In the fifty-second C site, C(52) is bonded in a distorted single-bond geometry to one C(48) and one H(19) atom. The C(52)-H(19) bond length is 0.95 Å. In the fifty-third C site, C(53) is bonded in a distorted single-bond geometry to one C(30) and one H(20) atom. The C(53)-H(20) bond length is 0.95 Å. In the fifty-fourth C site, C(54) is bonded in a distorted single-bond geometry to one C(42) and one H(21) atom. The C(54)-H(21) bond length is 0.95 Å. In the fifty-fifth C site, C(55) is bonded in a distorted single-bond geometry to one C(48), one C(51), and one O(20) atom. The C(55)-O(20) bond length is 1.25 Å. In the fifty-sixth C site, C(56) is bonded in a distorted single-bond geometry to one C(37), one C(42), and one O(21) atom. The C(56)-O(21) bond length is 1.24 Å. There are twenty-one 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(9) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(12) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(15) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(20) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(21) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(24) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(26) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(28) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one C(29) atom. In the eleventh H site, H(11) is bonded in a single-bond geometry to one C(34) atom. In the twelfth H site, H(12) is bonded in a single-bond geometry to one C(36) atom. In the thirteenth H site, H(13) is bonded in a single-bond geometry to one C(41) atom. In the fourteenth H site, H(14) is bonded in a single-bond geometry to one C(43) atom. In the fifteenth H site, H(15) is bonded in a single-bond geometry to one C(44) atom. In the sixteenth H site, H(16) is bonded in a single-bond geometry to one C(46) atom. In the seventeenth H site, H(17) is bonded in a single-bond geometry to one C(47) atom. In the eighteenth H site, H(18) is bonded in a single-bond geometry to one C(49) atom. In the nineteenth H site, H(19) is bonded in a single-bond geometry to one C(52) atom. In the twentieth H site, H(20) is bonded in a single-bond geometry to one C(53) atom. In the twenty-first H site, H(21) is bonded in a single-bond geometry to one C(54) atom. There are twenty-one inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(3), and one C(7) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Mn(1) and one C(13) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Mn(2) and one C(17) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one C(31) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Mn(4) and one C(11) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Mn(1) and one C(38) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Mn(4) and one C(17) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mn(1), one Mn(2), and one C(11) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Mn(3) and one C(25) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one Mn(2), one Mn(4), and one C(13) atom. In the eleventh O site, O(11) is bonded in a distorted bent 150 degrees geometry to one Mn(1) and one C(25) atom. In the twelfth O site, O(12) is bonded in a distorted L-shaped geometry to one Mn(3) and one C(7) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one Mn(2) and one C(31) atom. In the fourteenth O site, O(14) is bonded in a single-bond geometry to one C(18) atom. In the fifteenth O site, O(15) is bonded in a single-bond geometry to one C(22) atom. In the sixteenth O site, O(16) is bonded in a distorted single-bond geometry to one Mn(3) and one C(38) atom. In the seventeenth O site, O(17) is bonded in a single-bond geometry to one C(32) atom. In the eighteenth O site, O(18) is bonded in a single-bond geometry to one C(45) atom. In the nineteenth O site, O(19) is bonded in a single-bond geometry to one C(50) atom. In the twentieth O site, O(20) is bonded in a single-bond geometry to one C(55) atom. In the twenty-first O site, O(21) is bonded in a single-bond geometry to one C(56) atom. Linkers: 1 [O]C(=O)c1ccc2c(c1)C(=O)c1ccc(C([O])=O)cc1C2=O ,6 [O]C(=O)c1ccc2c(c1)C(=O)c1cc(C([O])=O)ccc1C2=O. Metal clusters: 1 [C]1O[Mn]2(O[C]O[Mn]3(O1)O[C]O[Mn]14(O[C]O[Mn](O[C]O1)O[C]O4)O[C]O3)O[C]O[Mn]1(O[C]O2)O[C]O[Mn]23(O[C]O[Mn](O[C]O2)O[C]O3)O[C]O1. RCSR code: bcu. The MOF has largest included sphere 7.98 A, density 0.89 g/cm3, surface area 3972.27 m2/g, accessible volume 0.68 cm3/g