TbC8NH5O8CH3 crystallizes in the monoclinic P2_1/c space group. The structure consists of four 02329_fluka molecules inside a TbC8NH5O8 framework. In the TbC8NH5O8 framework, Tb(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and two equivalent O(8) atoms. The Tb(1)-O(1) bond length is 2.43 Å. The Tb(1)-O(2) bond length is 2.34 Å. The Tb(1)-O(3) bond length is 2.41 Å. The Tb(1)-O(4) bond length is 2.46 Å. The Tb(1)-O(5) bond length is 2.33 Å. The Tb(1)-O(6) bond length is 2.59 Å. The Tb(1)-O(7) bond length is 2.40 Å. There is one shorter (2.39 Å) and one longer (2.48 Å) Tb(1)-O(8) bond length. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(2), and one O(3) atom. The C(1)-C(2) bond length is 1.51 Å. The C(1)-O(2) bond length is 1.27 Å. The C(1)-O(3) bond length is 1.27 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(3), and one N(1) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-N(1) bond length is 1.38 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 1.39 Å. The C(3)-H(1) bond length is 1.09 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(3), one C(5), and one H(2) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(2) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(4), one C(6), and one C(7) atom. The C(5)-C(6) bond length is 1.51 Å. The C(5)-C(7) bond length is 1.38 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(4), and one O(5) atom. The C(6)-O(4) bond length is 1.27 Å. The C(6)-O(5) bond length is 1.27 Å. In the seventh C site, C(7) is bonded in a distorted trigonal planar geometry to one C(5), one N(1), and one H(3) atom. The C(7)-N(1) bond length is 1.36 Å. The C(7)-H(3) bond length is 1.09 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(6) and one O(8) atom. The C(8)-O(6) bond length is 1.27 Å. The C(8)-O(8) bond length is 1.29 Å. N(1) is bonded in a trigonal planar geometry to one C(2), one C(7), and one O(1) atom. The N(1)-O(1) bond length is 1.31 Å. There are five 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(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(7) atom. In the fourth H site, H(7) is bonded in a single-bond geometry to one O(7) atom. The H(7)-O(7) bond length is 0.98 Å. In the fifth H site, H(8) is bonded in a single-bond geometry to one O(7) atom. The H(8)-O(7) bond length is 1.00 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Tb(1) and one N(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Tb(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Tb(1) and one C(1) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Tb(1) and one C(6) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Tb(1) and one C(6) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Tb(1) and one C(8) atom. In the seventh O site, O(7) is bonded in a distorted water-like geometry to one Tb(1), one H(7), and one H(8) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent Tb(1) and one C(8) atom. Linkers: 4 [O]C(=O)c1ccc(C([O])=O)[n+]([O-])c1. Metal clusters: 4 [Tb]. The MOF has largest included sphere 3.05 A, density 2.31 g/cm3, surface area 2577.77 m2/g, accessible volume 0.10 cm3/g