TbC23H19O9 crystallizes in the triclinic P-1 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(12), one O(13), one O(15), one O(17), one O(3), one O(6), and one O(8) atom. The Tb(1)-O(1) bond length is 2.51 Å. The Tb(1)-O(10) bond length is 2.28 Å. The Tb(1)-O(12) bond length is 2.40 Å. The Tb(1)-O(13) bond length is 2.53 Å. The Tb(1)-O(15) bond length is 2.68 Å. The Tb(1)-O(17) bond length is 2.47 Å. The Tb(1)-O(3) bond length is 2.34 Å. The Tb(1)-O(6) bond length is 2.39 Å. The Tb(1)-O(8) bond length is 2.39 Å. In the second Tb site, Tb(2) is bonded in a 9-coordinate geometry to one O(11), one O(14), one O(16), one O(18), one O(2), one O(4), one O(5), one O(7), and one O(9) atom. The Tb(2)-O(11) bond length is 2.40 Å. The Tb(2)-O(14) bond length is 2.53 Å. The Tb(2)-O(16) bond length is 2.68 Å. The Tb(2)-O(18) bond length is 2.47 Å. The Tb(2)-O(2) bond length is 2.51 Å. The Tb(2)-O(4) bond length is 2.35 Å. The Tb(2)-O(5) bond length is 2.39 Å. The Tb(2)-O(7) bond length is 2.39 Å. The Tb(2)-O(9) bond length is 2.28 Å. There are thirty-three inequivalent C sites. In the first C site, C(1,2) is bonded in a bent 120 degrees geometry to one C(3,4); one O(1); and one O(3) atom. The C(1,2)-C(3,4) bond length is 1.49 Å. The C(1,2)-O(1) bond length is 1.28 Å. The C(1,2)-O(3) bond length is 1.28 Å. In the second C site, C(3,4) is bonded in a trigonal planar geometry to one C(1,2); one C(13,14); and one C(5,6) atom. The C(3,4)-C(13,14) bond length is 1.41 Å. The C(3,4)-C(5,6) bond length is 1.39 Å. In the third C site, C(5,6) is bonded in a distorted single-bond geometry to one C(3,4); one C(7); and one H(1,2) atom. The C(5,6)-C(7) bond length is 1.41 Å. The C(5,6)-H(1,2) bond length is 1.09 Å. In the fourth C site, C(7) is bonded in a trigonal planar geometry to one C(37,38); one C(5,6); and one C(9,10) atom. The C(7)-C(37,38) bond length is 1.46 Å. The C(7)-C(9,10) bond length is 1.42 Å. In the fifth C site, C(8) is bonded in a trigonal planar geometry to one C(37,38); one C(5,6); and one C(9,10) atom. The C(8)-C(37,38) bond length is 1.46 Å. The C(8)-C(5,6) bond length is 1.41 Å. The C(8)-C(9,10) bond length is 1.42 Å. In the sixth C site, C(9,10) is bonded in a trigonal planar geometry to one C(11,12); one C(21); and one C(7) atom. The C(9,10)-C(11,12) bond length is 1.42 Å. The C(9,10)-C(21) bond length is 1.46 Å. In the seventh C site, C(11,12) is bonded in a distorted single-bond geometry to one C(9,10) and one H(3,4) atom. The C(11,12)-H(3,4) bond length is 1.09 Å. In the eighth C site, C(13,14) is bonded in a distorted single-bond geometry to one C(3,4) and one H(5,6) atom. The C(13,14)-H(5,6) bond length is 1.09 Å. In the ninth C site, C(15,16) is bonded in a bent 120 degrees geometry to one C(17), one O(5), and one O(7) atom. The C(15,16)-C(17) bond length is 1.49 Å. The C(15,16)-O(5) bond length is 1.28 Å. The C(15,16)-O(7) bond length is 1.28 Å. In the tenth C site, C(17) is bonded in a trigonal planar geometry to one C(15,16); one C(19,20); and one C(27,28) atom. The C(17)-C(19,20) bond length is 1.39 Å. The C(17)-C(27,28) bond length is 1.41 Å. In the eleventh C site, C(18) is bonded in a trigonal planar geometry to one C(15,16); one C(19,20); and one C(27,28) atom. The C(18)-C(15,16) bond length is 1.49 Å. The C(18)-C(19,20) bond length is 1.39 Å. The C(18)-C(27,28) bond length is 1.41 Å. In the twelfth C site, C(19,20) is bonded in a distorted single-bond geometry to one C(17); one C(21); and one H(7,8) atom. The C(19,20)-C(21) bond length is 1.41 Å. The C(19,20)-H(7,8) bond length is 1.09 Å. In the thirteenth C site, C(21) is bonded in a trigonal planar geometry to one C(19,20); one C(23,24); and one C(9,10) atom. The C(21)-C(23,24) bond length is 1.42 Å. In the fourteenth C site, C(22) is bonded in a trigonal planar geometry to one C(19,20); one C(23,24); and one C(9,10) atom. The C(22)-C(19,20) bond length is 1.41 Å. The C(22)-C(23,24) bond length is 1.42 Å. The C(22)-C(9,10) bond length is 1.46 Å. In the fifteenth C site, C(23,24) is bonded in a trigonal planar geometry to one C(21), one C(25), and one C(35) atom. The C(23,24)-C(25) bond length is 1.41 Å. The C(23,24)-C(35) bond length is 1.46 Å. In the sixteenth C site, C(25) is bonded in a distorted trigonal planar geometry to one C(23,24); one C(27,28); and one H(9,10) atom. The C(25)-C(27,28) bond length is 1.38 Å. The C(25)-H(9,10) bond length is 1.09 Å. In the seventeenth C site, C(26) is bonded in a distorted trigonal planar geometry to one C(23,24); one C(27,28); and one H(9,10) atom. The C(26)-C(23,24) bond length is 1.41 Å. The C(26)-C(27,28) bond length is 1.38 Å. The C(26)-H(9,10) bond length is 1.09 Å. In the eighteenth C site, C(27,28) is bonded in a distorted single-bond geometry to one C(17); one C(25); and one H(11,12) atom. The C(27,28)-H(11,12) bond length is 1.09 Å. In the nineteenth C site, C(29) is bonded in a bent 120 degrees geometry to one C(31), one O(11), and one O(9) atom. The C(29)-C(31) bond length is 1.49 Å. The C(29)-O(11) bond length is 1.28 Å. The C(29)-O(9) bond length is 1.27 Å. In the twentieth C site, C(30) is bonded in a bent 120 degrees geometry to one C(32), one O(10), and one O(12) atom. The C(30)-C(32) bond length is 1.49 Å. The C(30)-O(10) bond length is 1.27 Å. The C(30)-O(12) bond length is 1.28 Å. In the twenty-first C site, C(31) is bonded in a trigonal planar geometry to one C(29), one C(33), and one C(41) atom. The C(31)-C(33) bond length is 1.39 Å. The C(31)-C(41) bond length is 1.41 Å. In the twenty-second C site, C(32) is bonded in a trigonal planar geometry to one C(30), one C(34), and one C(42) atom. The C(32)-C(34) bond length is 1.39 Å. The C(32)-C(42) bond length is 1.41 Å. In the twenty-third C site, C(33) is bonded in a distorted single-bond geometry to one C(31), one C(35), and one H(13) atom. The C(33)-C(35) bond length is 1.41 Å. The C(33)-H(13) bond length is 1.09 Å. In the twenty-fourth C site, C(34) is bonded in a distorted single-bond geometry to one C(32), one C(36), and one H(14) atom. The C(34)-C(36) bond length is 1.41 Å. The C(34)-H(14) bond length is 1.09 Å. In the twenty-fifth C site, C(35) is bonded in a trigonal planar geometry to one C(23,24); one C(33); and one C(37,38) atom. The C(35)-C(37,38) bond length is 1.42 Å. In the twenty-sixth C site, C(36) is bonded in a trigonal planar geometry to one C(23,24); one C(34); and one C(37,38) atom. The C(36)-C(23,24) bond length is 1.46 Å. The C(36)-C(37,38) bond length is 1.42 Å. In the twenty-seventh C site, C(37,38) is bonded in a trigonal planar geometry to one C(35), one C(39), and one C(7) atom. The C(37,38)-C(39) bond length is 1.42 Å. In the twenty-eighth C site, C(39) is bonded in a distorted single-bond geometry to one C(37,38) and one H(15,16) atom. The C(39)-H(15,16) bond length is 1.09 Å. In the twenty-ninth C site, C(40) is bonded in a distorted single-bond geometry to one C(37,38) and one H(15,16) atom. The C(40)-C(37,38) bond length is 1.42 Å. The C(40)-H(15,16) bond length is 1.09 Å. In the thirtieth C site, C(41) is bonded in a distorted single-bond geometry to one C(31) and one H(17) atom. The C(41)-H(17) bond length is 1.09 Å. In the thirty-first C site, C(42) is bonded in a single-bond geometry to one C(32) and one H(18) atom. The C(42)-H(18) bond length is 1.09 Å. In the thirty-second C site, C(43,44) is bonded in a tetrahedral geometry to one H(19), one H(21), one H(23), and one O(13) atom. The C(43,44)-H(19) bond length is 1.10 Å. The C(43,44)-H(21) bond length is 1.10 Å. The C(43,44)-H(23) bond length is 1.10 Å. The C(43,44)-O(13) bond length is 1.44 Å. In the thirty-third C site, C(45,46) is bonded in a tetrahedral geometry to one H(25,26); one H(27,28); one H(29,30); and one O(15) atom. The C(45,46)-H(25,26) bond length is 1.10 Å. The C(45,46)-H(27,28) bond length is 1.10 Å. The C(45,46)-H(29,30) bond length is 1.10 Å. The C(45,46)-O(15) bond length is 1.44 Å. There are twenty-five inequivalent H sites. In the first H site, H(1,2) is bonded in a single-bond geometry to one C(5,6) atom. In the second H site, H(3,4) is bonded in a single-bond geometry to one C(11,12) atom. In the third H site, H(5,6) is bonded in a single-bond geometry to one C(13,14) atom. In the fourth H site, H(7,8) is bonded in a single-bond geometry to one C(19,20) atom. In the fifth H site, H(9,10) is bonded in a single-bond geometry to one C(25) atom. In the sixth H site, H(11,12) is bonded in a single-bond geometry to one C(27,28) atom. In the seventh H site, H(13) is bonded in a single-bond geometry to one C(33) atom. In the eighth H site, H(14) is bonded in a single-bond geometry to one C(34) atom. In the ninth H site, H(15,16) is bonded in a single-bond geometry to one C(39) atom. In the tenth H site, H(17) is bonded in a single-bond geometry to one C(41) atom. In the eleventh H site, H(18) is bonded in a single-bond geometry to one C(42) atom. In the twelfth H site, H(19) is bonded in a single-bond geometry to one C(43,44) atom. In the thirteenth H site, H(20) is bonded in a single-bond geometry to one C(43,44) atom. The H(20)-C(43,44) bond length is 1.10 Å. In the fourteenth H site, H(21) is bonded in a single-bond geometry to one C(43,44) atom. In the fifteenth H site, H(22) is bonded in a single-bond geometry to one C(43,44) atom. The H(22)-C(43,44) bond length is 1.10 Å. In the sixteenth H site, H(23) is bonded in a single-bond geometry to one C(43,44) atom. In the seventeenth H site, H(24) is bonded in a single-bond geometry to one C(43,44) atom. The H(24)-C(43,44) bond length is 1.10 Å. In the eighteenth H site, H(25,26) is bonded in a single-bond geometry to one C(45,46) atom. In the nineteenth H site, H(27,28) is bonded in a single-bond geometry to one C(45,46) atom. In the twentieth H site, H(29,30) is bonded in a single-bond geometry to one C(45,46) atom. In the twenty-first H site, H(31,32) is bonded in a single-bond geometry to one O(13) atom. The H(31,32)-O(13) bond length is 0.98 Å. In the twenty-second H site, H(33,34) is bonded in a single-bond geometry to one O(15) atom. The H(33,34)-O(15) bond length is 1.00 Å. In the twenty-third H site, H(35) is bonded in a single-bond geometry to one O(17) atom. The H(35)-O(17) bond length is 0.98 Å. In the twenty-fourth H site, H(36) is bonded in a single-bond geometry to one O(18) atom. The H(36)-O(18) bond length is 0.98 Å. In the twenty-fifth H site, H(37,38) is bonded in a single-bond geometry to one O(17) atom. The H(37,38)-O(17) bond length is 0.97 Å. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Tb(1) and one C(1,2) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Tb(2) and one C(1,2) atom. The O(2)-C(1,2) bond length is 1.28 Å. In the third O site, O(3) is bonded in an L-shaped geometry to one Tb(1) and one C(1,2) atom. In the fourth O site, O(4) is bonded in an L-shaped geometry to one Tb(2) and one C(1,2) atom. The O(4)-C(1,2) bond length is 1.28 Å. In the fifth O site, O(5) is bonded in a distorted L-shaped geometry to one Tb(2) and one C(15,16) atom. In the sixth O site, O(6) is bonded in a distorted L-shaped geometry to one Tb(1) and one C(15,16) atom. The O(6)-C(15,16) bond length is 1.28 Å. In the seventh O site, O(7) is bonded in a distorted L-shaped geometry to one Tb(2) and one C(15,16) atom. In the eighth O site, O(8) is bonded in a distorted L-shaped geometry to one Tb(1) and one C(15,16) atom. The O(8)-C(15,16) bond length is 1.28 Å. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Tb(2) and one C(29) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Tb(1) and one C(30) atom. In the eleventh O site, O(11) is bonded in a 1-coordinate geometry to one Tb(2) and one C(29) atom. In the twelfth O site, O(12) is bonded in a 1-coordinate geometry to one Tb(1) and one C(30) atom. In the thirteenth O site, O(13) is bonded in a distorted water-like geometry to one Tb(1); one C(43,44); and one H(31,32) atom. In the fourteenth O site, O(14) is bonded in a distorted water-like geometry to one Tb(2); one C(43,44); and one H(31,32) atom. The O(14)-C(43,44) bond length is 1.44 Å. The O(14)-H(31,32) bond length is 0.98 Å. In the fifteenth O site, O(15) is bonded in a distorted water-like geometry to one Tb(1); one C(45,46); and one H(33,34) atom. In the sixteenth O site, O(16) is bonded in a distorted water-like geometry to one Tb(2); one C(45,46); and one H(33,34) atom. The O(16)-C(45,46) bond length is 1.44 Å. The O(16)-H(33,34) bond length is 1.00 Å. In the seventeenth O site, O(17) is bonded in a 3-coordinate geometry to one Tb(1); one H(35); and one H(37,38) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one Tb(2); one H(36); and one H(37,38) atom. The O(18)-H(37,38) bond length is 0.97 Å. Linkers: 4 [O]C(=O)c1ccc2c(c1)c1ccc(C([O])=O)cc1c1ccc(C([O])=O)cc21. Metal clusters: 2 CO.CO.O.O.O=[C]O[Tb]12(O[C]O1)O[C]O[Tb]1(O[C]=O)(O[C]O1)O[C]O2. The MOF has largest included sphere 9.00 A, density 0.85 g/cm3, surface area 3926.88 m2/g, accessible volume 0.77 cm3/g