TbC3H4O8C4H2O crystallizes in the monoclinic C2/c space group. The structure consists of eight furan molecules inside a TbC3H4O8 framework. In the TbC3H4O8 framework, 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), one O(8), and one O(9) atom. The Tb(1)-O(1) bond length is 2.28 Å. The Tb(1)-O(2) bond length is 2.29 Å. The Tb(1)-O(3) bond length is 2.41 Å. The Tb(1)-O(4) bond length is 2.28 Å. The Tb(1)-O(6) bond length is 2.37 Å. The Tb(1)-O(7) bond length is 2.48 Å. The Tb(1)-O(8) bond length is 2.47 Å. The Tb(1)-O(9) bond length is 2.57 Å. There are three inequivalent C sites. In the first C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(4) and one O(6) atom. The C(4)-O(4) bond length is 1.28 Å. The C(4)-O(6) bond length is 1.27 Å. In the second C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(7) atom. The C(6)-O(3) bond length is 1.27 Å. The C(6)-O(7) bond length is 1.27 Å. In the third C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) bond length is 1.27 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(8) atom. The H(1)-O(8) bond length is 0.97 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(8) atom. The H(2)-O(8) bond length is 0.99 Å. In the third H site, H(5) is bonded in a single-bond geometry to one O(9) atom. The H(5)-O(9) bond length is 0.98 Å. In the fourth H site, H(6) is bonded in a single-bond geometry to one O(9) atom. The H(6)-O(9) bond length is 0.99 Å. There are eight inequivalent O sites. In the first O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Tb(1) and one C(4) atom. In the second O site, O(7) is bonded in a distorted single-bond geometry to one Tb(1) and one C(6) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Tb(1) and one C(6) atom. In the fourth O site, O(8) is bonded in a water-like geometry to one Tb(1), one H(1), and one H(2) atom. In the fifth O site, O(1) is bonded in a linear geometry to one Tb(1) and one C(1) atom. In the sixth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Tb(1) and one C(4) atom. In the seventh O site, O(9) is bonded in a water-like geometry to one Tb(1), one H(5), and one H(6) atom. In the eighth O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Tb(1) and one C(1) atom. Linkers: 4 [O]C(=O)c1ccc(C([O])=O)o1 ,2 [O]C(=O)C([O])=O. Metal clusters: 4 [Tb]. The MOF has largest included sphere 2.39 A, density 2.54 g/cm3, surface area 2655.92 m2/g, accessible volume 0.09 cm3/g