ScH6(C2O)6 crystallizes in the triclinic P1 space group. There are three inequivalent Sc sites. In the first Sc site, Sc(1,2) is bonded in an octahedral geometry to one O(2,11); one O(3,12); one O(5,8); one O(6,9); and two equivalent O(1,4,7,10) atoms. The Sc(1,2)-O(2,11) bond length is 2.10 Å. The Sc(1,2)-O(3,12) bond length is 2.05 Å. The Sc(1,2)-O(5,8) bond length is 2.10 Å. The Sc(1,2)-O(6,9) bond length is 2.05 Å. Both Sc(1,2)-O(1,4,7,10) bond lengths are 2.07 Å. In the second Sc site, Sc(3) is bonded in an octahedral geometry to one O(13,22); one O(14,23); one O(15,24); one O(16,19); one O(17,20); and one O(18,21) atom. The Sc(3)-O(13,22) bond length is 2.07 Å. The Sc(3)-O(14,23) bond length is 2.10 Å. The Sc(3)-O(15,24) bond length is 2.05 Å. The Sc(3)-O(16,19) bond length is 2.07 Å. The Sc(3)-O(17,20) bond length is 2.10 Å. The Sc(3)-O(18,21) bond length is 2.05 Å. In the third Sc site, Sc(4) is bonded in an octahedral geometry to one O(13,22); one O(14,23); one O(15,24); one O(16,19); one O(17,20); and one O(18,21) atom. The Sc(4)-O(13,22) bond length is 2.07 Å. The Sc(4)-O(14,23) bond length is 2.10 Å. The Sc(4)-O(15,24) bond length is 2.05 Å. The Sc(4)-O(16,19) bond length is 2.07 Å. The Sc(4)-O(17,20) bond length is 2.10 Å. The Sc(4)-O(18,21) bond length is 2.05 Å. There are thirty-two inequivalent C sites. In the first C site, C(1,16) is bonded in a distorted trigonal planar geometry to one C(1,16); one C(42); and one H(1,10) atom. The C(1,16)-C(1,16) bond length is 1.41 Å. The C(1,16)-C(42) bond length is 1.38 Å. The C(1,16)-H(1,10) bond length is 1.14 Å. In the second C site, C(2) is bonded in a bent 120 degrees geometry to one C(3,18); one O(2,11); and one O(3,12) atom. The C(2)-C(3,18) bond length is 1.53 Å. The C(2)-O(2,11) bond length is 1.22 Å. The C(2)-O(3,12) bond length is 1.25 Å. In the third C site, C(3,18) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(5) atom. The C(3,18)-C(4) bond length is 1.41 Å. The C(3,18)-C(5) bond length is 1.36 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(25,40); one C(3,18); and one H(2,11,17,20) atom. The C(4)-C(25,40) bond length is 1.41 Å. The C(4)-H(2,11,17,20) bond length is 1.14 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(24,39); one C(3,18); and one H(3,12) atom. The C(5)-C(24,39) bond length is 1.41 Å. The C(5)-H(3,12) bond length is 1.14 Å. In the sixth C site, C(6,11) is bonded in a distorted trigonal planar geometry to one C(44); one C(6,11); and one H(4,7) atom. The C(6,11)-C(44) bond length is 1.38 Å. The C(6,11)-C(6,11) bond length is 1.41 Å. The C(6,11)-H(4,7) bond length is 1.14 Å. In the seventh C site, C(7,12) is bonded in a bent 120 degrees geometry to one C(8,13); one O(5,8); and one O(6,9) atom. The C(7,12)-C(8,13) bond length is 1.53 Å. The C(7,12)-O(5,8) bond length is 1.22 Å. The C(7,12)-O(6,9) bond length is 1.25 Å. In the eighth C site, C(8,13) is bonded in a trigonal planar geometry to one C(10,15); one C(7,12); and one C(9,14) atom. The C(8,13)-C(10,15) bond length is 1.36 Å. The C(8,13)-C(9,14) bond length is 1.41 Å. In the ninth C site, C(9,14) is bonded in a distorted single-bond geometry to one C(30); one C(8,13); and one H(5,8) atom. The C(9,14)-C(30) bond length is 1.41 Å. The C(9,14)-H(5,8) bond length is 1.14 Å. In the tenth C site, C(10,15) is bonded in a distorted single-bond geometry to one C(29); one C(8,13); and one H(6,9,15) atom. The C(10,15)-C(29) bond length is 1.41 Å. The C(10,15)-H(6,9,15) bond length is 1.14 Å. In the eleventh C site, C(17) is bonded in a bent 120 degrees geometry to one C(3,18); one O(2,11); and one O(3,12) atom. The C(17)-C(3,18) bond length is 1.53 Å. The C(17)-O(2,11) bond length is 1.22 Å. The C(17)-O(3,12) bond length is 1.25 Å. In the twelfth C site, C(19) is bonded in a distorted single-bond geometry to one C(25,40); one C(3,18); and one H(2,11,17,20) atom. The C(19)-C(25,40) bond length is 1.41 Å. The C(19)-C(3,18) bond length is 1.41 Å. The C(19)-H(2,11,17,20) bond length is 1.14 Å. In the thirteenth C site, C(20) is bonded in a distorted single-bond geometry to one C(24,39); one C(3,18); and one H(3,12) atom. The C(20)-C(24,39) bond length is 1.41 Å. The C(20)-C(3,18) bond length is 1.36 Å. The C(20)-H(3,12) bond length is 1.14 Å. In the fourteenth C site, C(21,26,31,36) is bonded in a distorted trigonal planar geometry to one C(21,26,31,36); one C(46,48); and one H(13,16,19,22) atom. The C(21,26,31,36)-C(21,26,31,36) bond length is 1.41 Å. The C(21,26,31,36)-C(46,48) bond length is 1.38 Å. The C(21,26,31,36)-H(13,16,19,22) bond length is 1.14 Å. In the fifteenth C site, C(22,37) is bonded in a bent 120 degrees geometry to one C(23); one O(14,23); and one O(15,24) atom. The C(22,37)-C(23) bond length is 1.53 Å. The C(22,37)-O(14,23) bond length is 1.22 Å. The C(22,37)-O(15,24) bond length is 1.25 Å. In the sixteenth C site, C(23) is bonded in a trigonal planar geometry to one C(22,37); one C(24,39); and one C(25,40) atom. The C(23)-C(24,39) bond length is 1.41 Å. The C(23)-C(25,40) bond length is 1.36 Å. In the seventeenth C site, C(24,39) is bonded in a distorted single-bond geometry to one C(23); one C(5); and one H(14,23) atom. The C(24,39)-H(14,23) bond length is 1.14 Å. In the eighteenth C site, C(25,40) is bonded in a distorted single-bond geometry to one C(23); one C(4); and one H(6,9,15) atom. The C(25,40)-H(6,9,15) bond length is 1.14 Å. In the nineteenth C site, C(27) is bonded in a bent 120 degrees geometry to one C(28,33); one O(17,20); and one O(18,21) atom. The C(27)-C(28,33) bond length is 1.53 Å. The C(27)-O(17,20) bond length is 1.22 Å. The C(27)-O(18,21) bond length is 1.25 Å. In the twentieth C site, C(28,33) is bonded in a trigonal planar geometry to one C(27), one C(29), and one C(30) atom. The C(28,33)-C(29) bond length is 1.41 Å. The C(28,33)-C(30) bond length is 1.36 Å. In the twenty-first C site, C(29) is bonded in a distorted single-bond geometry to one C(10,15); one C(28,33); and one H(2,11,17,20) atom. The C(29)-H(2,11,17,20) bond length is 1.14 Å. In the twenty-second C site, C(30) is bonded in a distorted single-bond geometry to one C(28,33); one C(9,14); and one H(18,21,24) atom. The C(30)-H(18,21,24) bond length is 1.14 Å. In the twenty-third C site, C(32) is bonded in a bent 120 degrees geometry to one C(28,33); one O(17,20); and one O(18,21) atom. The C(32)-C(28,33) bond length is 1.53 Å. The C(32)-O(17,20) bond length is 1.22 Å. The C(32)-O(18,21) bond length is 1.25 Å. In the twenty-fourth C site, C(34) is bonded in a distorted single-bond geometry to one C(10,15); one C(28,33); and one H(2,11,17,20) atom. The C(34)-C(10,15) bond length is 1.41 Å. The C(34)-C(28,33) bond length is 1.41 Å. The C(34)-H(2,11,17,20) bond length is 1.14 Å. In the twenty-fifth C site, C(35) is bonded in a distorted single-bond geometry to one C(28,33); one C(9,14); and one H(18,21,24) atom. The C(35)-C(28,33) bond length is 1.36 Å. The C(35)-C(9,14) bond length is 1.41 Å. The C(35)-H(18,21,24) bond length is 1.14 Å. In the twenty-sixth C site, C(38) is bonded in a trigonal planar geometry to one C(22,37); one C(24,39); and one C(25,40) atom. The C(38)-C(22,37) bond length is 1.53 Å. The C(38)-C(24,39) bond length is 1.41 Å. The C(38)-C(25,40) bond length is 1.36 Å. In the twenty-seventh C site, C(41) is bonded in a bent 120 degrees geometry to one C(42) and two equivalent O(1,4,7,10) atoms. The C(41)-C(42) bond length is 1.51 Å. Both C(41)-O(1,4,7,10) bond lengths are 1.24 Å. In the twenty-eighth C site, C(42) is bonded in a trigonal planar geometry to one C(1,16); one C(41); and one C(6,11) atom. The C(42)-C(6,11) bond length is 1.38 Å. In the twenty-ninth C site, C(43) is bonded in a bent 120 degrees geometry to one C(44) and two equivalent O(1,4,7,10) atoms. The C(43)-C(44) bond length is 1.51 Å. Both C(43)-O(1,4,7,10) bond lengths are 1.24 Å. In the thirtieth C site, C(44) is bonded in a trigonal planar geometry to one C(1,16); one C(43); and one C(6,11) atom. The C(44)-C(1,16) bond length is 1.38 Å. In the thirty-first C site, C(45,47) is bonded in a bent 120 degrees geometry to one C(46,48); one O(13,22); and one O(16,19) atom. The C(45,47)-C(46,48) bond length is 1.51 Å. The C(45,47)-O(13,22) bond length is 1.24 Å. The C(45,47)-O(16,19) bond length is 1.24 Å. In the thirty-second C site, C(46,48) is bonded in a trigonal planar geometry to one C(45,47) and two equivalent C(21,26,31,36) atoms. There are nine inequivalent H sites. In the first H site, H(1,10) is bonded in a single-bond geometry to one C(1,16) atom. In the second H site, H(2,11,17,20) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(3,12) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4,7) is bonded in a single-bond geometry to one C(6,11) atom. In the fifth H site, H(5,8) is bonded in a single-bond geometry to one C(9,14) atom. In the sixth H site, H(6,9,15) is bonded in a single-bond geometry to one C(10,15) atom. In the seventh H site, H(13,16,19,22) is bonded in a single-bond geometry to one C(21,26,31,36) atom. In the eighth H site, H(14,23) is bonded in a single-bond geometry to one C(24,39) atom. In the ninth H site, H(18,21,24) is bonded in a single-bond geometry to one C(30) atom. There are eleven inequivalent O sites. In the first O site, O(1,4,7,10) is bonded in a bent 150 degrees geometry to one Sc(1,2) and one C(41) atom. In the second O site, O(2,11) is bonded in a distorted bent 150 degrees geometry to one Sc(1,2) and one C(2) atom. In the third O site, O(3,12) is bonded in a linear geometry to one Sc(1,2) and one C(2) atom. In the fourth O site, O(5,8) is bonded in a distorted bent 150 degrees geometry to one Sc(1,2) and one C(7,12) atom. In the fifth O site, O(6,9) is bonded in a linear geometry to one Sc(1,2) and one C(7,12) atom. In the sixth O site, O(13,22) is bonded in a bent 150 degrees geometry to one Sc(3) and one C(45,47) atom. In the seventh O site, O(14,23) is bonded in a distorted bent 150 degrees geometry to one Sc(3) and one C(22,37) atom. In the eighth O site, O(15,24) is bonded in a linear geometry to one Sc(4) and one C(22,37) atom. In the ninth O site, O(16,19) is bonded in a bent 150 degrees geometry to one Sc(3) and one C(45,47) atom. In the tenth O site, O(17,20) is bonded in a distorted bent 150 degrees geometry to one Sc(3) and one C(27) atom. In the eleventh O site, O(18,21) is bonded in a linear geometry to one Sc(4) and one C(27) atom. Linkers: 6 [O]C(=O)c1ccc(C([O])=O)cc1. Metal clusters: 4 [Sc]. The MOF has largest included sphere 3.91 A, density 1.24 g/cm3, surface area 4363.18 m2/g, accessible volume 0.38 cm3/g