TbC21N4H11O7(CH)2 crystallizes in the monoclinic C2/c space group. The structure consists of sixteen 02329_fluka molecules inside a TbC21N4H11O7 framework. In the TbC21N4H11O7 framework, Tb(1) is bonded in a 9-coordinate geometry to one N(1), one N(2), one N(3), one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Tb(1)-N(1) bond length is 2.52 Å. The Tb(1)-N(2) bond length is 2.58 Å. The Tb(1)-N(3) bond length is 2.59 Å. The Tb(1)-O(1) bond length is 2.28 Å. The Tb(1)-O(2) bond length is 2.28 Å. The Tb(1)-O(3) bond length is 2.44 Å. The Tb(1)-O(4) bond length is 2.44 Å. The Tb(1)-O(5) bond length is 2.53 Å. The Tb(1)-O(6) bond length is 2.51 Å. There are twenty-one inequivalent C sites. In the first C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one N(1) atom. The C(5)-C(4) bond length is 1.40 Å. The C(5)-C(6) bond length is 1.48 Å. The C(5)-N(1) bond length is 1.35 Å. In the second C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5), one C(7), and one N(2) atom. The C(6)-C(7) bond length is 1.40 Å. The C(6)-N(2) bond length is 1.35 Å. In the third C site, C(7) is bonded in a distorted single-bond geometry to one C(6), one C(8), and one H(5) atom. The C(7)-C(8) bond length is 1.40 Å. The C(7)-H(5) bond length is 1.09 Å. In the fourth C site, C(8) is bonded in a trigonal planar geometry to one C(16), one C(7), and one C(9) atom. The C(8)-C(16) bond length is 1.47 Å. The C(8)-C(9) bond length is 1.39 Å. In the fifth C site, C(9) is bonded in a distorted single-bond geometry to one C(10), one C(8), and one H(6) atom. The C(9)-C(10) bond length is 1.40 Å. The C(9)-H(6) bond length is 1.09 Å. In the sixth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(11), one C(9), and one N(2) atom. The C(10)-C(11) bond length is 1.48 Å. The C(10)-N(2) bond length is 1.35 Å. In the seventh C site, C(11) is bonded in a distorted trigonal planar geometry to one C(10), one C(12), and one N(3) atom. The C(11)-C(12) bond length is 1.40 Å. The C(11)-N(3) bond length is 1.35 Å. In the eighth C site, C(12) is bonded in a distorted single-bond geometry to one C(11) and one H(7) atom. The C(12)-H(7) bond length is 1.09 Å. In the ninth C site, C(15) is bonded in a distorted trigonal planar geometry to one N(3) and one H(10) atom. The C(15)-N(3) bond length is 1.34 Å. The C(15)-H(10) bond length is 1.09 Å. In the tenth C site, C(16) is bonded in a trigonal planar geometry to one C(17), one C(21), and one C(8) atom. The C(16)-C(17) bond length is 1.40 Å. The C(16)-C(21) bond length is 1.40 Å. In the eleventh C site, C(17) is bonded in a distorted single-bond geometry to one C(16), one C(18), and one H(11) atom. The C(17)-C(18) bond length is 1.39 Å. The C(17)-H(11) bond length is 1.09 Å. In the twelfth C site, C(18) is bonded in a trigonal planar geometry to one C(17), one C(19), and one C(22) atom. The C(18)-C(19) bond length is 1.40 Å. The C(18)-C(22) bond length is 1.50 Å. In the thirteenth C site, C(19) is bonded in a distorted single-bond geometry to one C(18), one C(20), and one H(12) atom. The C(19)-C(20) bond length is 1.40 Å. The C(19)-H(12) bond length is 1.09 Å. In the fourteenth C site, C(20) is bonded in a trigonal planar geometry to one C(19), one C(21), and one C(23) atom. The C(20)-C(21) bond length is 1.40 Å. The C(20)-C(23) bond length is 1.50 Å. In the fifteenth C site, C(21) is bonded in a distorted single-bond geometry to one C(16), one C(20), and one H(13) atom. The C(21)-H(13) bond length is 1.09 Å. In the sixteenth C site, C(22) is bonded in a distorted bent 120 degrees geometry to one C(18), one O(1), and one O(2) atom. The C(22)-O(1) bond length is 1.26 Å. The C(22)-O(2) bond length is 1.27 Å. In the seventeenth C site, C(23) is bonded in a bent 120 degrees geometry to one C(20), one O(3), and one O(4) atom. The C(23)-O(3) bond length is 1.28 Å. The C(23)-O(4) bond length is 1.28 Å. In the eighteenth C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(1), and one H(1) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(1) bond length is 1.09 Å. In the nineteenth C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one H(2) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-H(2) bond length is 1.09 Å. In the twentieth C site, C(3) is bonded in a distorted trigonal planar geometry to one C(2), one C(4), and one H(3) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-H(3) bond length is 1.09 Å. In the twenty-first C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(4) atom. The C(4)-H(4) bond length is 1.09 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a distorted trigonal planar geometry to one Tb(1), one C(1), and one C(5) atom. In the second N site, N(2) is bonded in a distorted trigonal planar geometry to one Tb(1), one C(10), and one C(6) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Tb(1), one C(11), and one C(15) atom. In the fourth N site, N(4) is bonded in a trigonal planar geometry to one O(5), one O(6), and one O(7) atom. The N(4)-O(5) bond length is 1.27 Å. The N(4)-O(6) bond length is 1.29 Å. The N(4)-O(7) bond length is 1.25 Å. There are eleven inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(7) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(12) atom. In the eighth H site, H(10) is bonded in a single-bond geometry to one C(15) atom. In the ninth H site, H(11) is bonded in a single-bond geometry to one C(17) atom. In the tenth H site, H(12) is bonded in a single-bond geometry to one C(19) atom. In the eleventh H site, H(13) is bonded in a single-bond geometry to one C(21) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one Tb(1) and one C(22) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Tb(1) and one C(22) atom. In the third O site, O(3) is bonded in a distorted L-shaped geometry to one Tb(1) and one C(23) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Tb(1) and one C(23) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one Tb(1) and one N(4) atom. In the sixth O site, O(6) is bonded in a distorted L-shaped geometry to one Tb(1) and one N(4) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one N(4) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)cc(-c2cc(-c3ccccn3)nc(-c3ccccn3)c2)c1. Metal clusters: 2 [O]N1O[Tb]23(O[C]O2)(O[C]O[Tb]24(O[C]O2)(O[C]O3)ON([O])O4)O1. The MOF has largest included sphere 3.72 A, density 1.79 g/cm3, surface area 3355.84 m2/g, accessible volume 0.21 cm3/g