TbC9NH6O7 crystallizes in the monoclinic P2_1/c space group. Tb(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(6), one O(7), and two equivalent O(5) atoms. The Tb(1)-O(1) bond length is 2.32 Å. The Tb(1)-O(2) bond length is 2.33 Å. The Tb(1)-O(3) bond length is 2.31 Å. The Tb(1)-O(4) bond length is 2.36 Å. The Tb(1)-O(6) bond length is 2.66 Å. The Tb(1)-O(7) bond length is 2.41 Å. There is one shorter (2.33 Å) and one longer (2.40 Å) Tb(1)-O(5) bond length. There are nine 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(1), and one O(2) atom. The C(1)-C(2) bond length is 1.50 Å. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(4) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-C(4) bond length is 1.40 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(5), and one H(1) atom. The C(3)-C(5) bond length is 1.40 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(2); one N(1); and one H(2,3) atom. The C(4)-N(1) bond length is 1.34 Å. The C(4)-H(2,3) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(3), one C(6), and one C(7) atom. The C(5)-C(6) bond length is 1.40 Å. The C(5)-C(7) bond length is 1.50 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5); one N(1); and one H(2,3) atom. The C(6)-N(1) bond length is 1.34 Å. The C(6)-H(2,3) bond length is 1.09 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(7)-O(3) bond length is 1.27 Å. The C(7)-O(4) bond length is 1.27 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(5) and one O(6) atom. The C(8)-O(5) bond length is 1.30 Å. The C(8)-O(6) bond length is 1.25 Å. In the ninth C site, C(9) is bonded in a distorted trigonal non-coplanar geometry to one H(4), one H(5), and one O(7) atom. The C(9)-H(4) bond length is 1.10 Å. The C(9)-H(5) bond length is 1.10 Å. The C(9)-O(7) bond length is 1.43 Å. N(1) is bonded in a trigonal planar geometry to one C(4), one C(6), and one H(6) atom. The N(1)-H(6) bond length is 1.56 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(2,3) is bonded in a single-bond geometry to one C(4) atom. In the third H site, H(4) is bonded in a single-bond geometry to one C(9) atom. In the fourth H site, H(5) is bonded in a single-bond geometry to one C(9) atom. In the fifth H site, H(6) is bonded in a linear geometry to one N(1) and one O(7) atom. The H(6)-O(7) bond length is 1.05 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Tb(1) and one C(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(7) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Tb(1) and one C(7) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Tb(1) and one C(8) atom. In the sixth O site, O(6) is bonded in a 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 C(9), and one H(6) atom. Linkers: 4 [O]C(=O)CO ,4 [O]C(=O)c1cncc(C([O])=O)c1. Metal clusters: 4 [Tb]. The MOF has largest included sphere 2.49 A, density 2.52 g/cm3, surface area 2553.36 m2/g, accessible volume 0.07 cm3/g