LaC8NH2O6 crystallizes in the monoclinic P2_1/c space group. La(1) is bonded in a 7-coordinate geometry to one N(1), one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The La(1)-N(1) bond length is 2.65 Å. The La(1)-O(1) bond length is 2.55 Å. The La(1)-O(2) bond length is 2.53 Å. The La(1)-O(3) bond length is 2.55 Å. The La(1)-O(4) bond length is 2.48 Å. The La(1)-O(5) bond length is 2.49 Å. The La(1)-O(6) bond length is 2.52 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(7), and one N(1) atom. The C(1)-C(2) bond length is 1.39 Å. The C(1)-C(7) bond length is 1.51 Å. The C(1)-N(1) bond length is 1.35 Å. In the second C site, C(2) is bonded in a single-bond geometry to one C(1), one C(3), and one H(1) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-H(1) bond length is 0.93 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(8) atom. The C(3)-C(4) bond length is 1.39 Å. The C(3)-C(8) bond length is 1.52 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3), one C(5), and one H(2) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-H(2) bond length is 0.93 Å. In the fifth C site, C(5) is bonded in a distorted trigonal planar geometry to one C(4), one C(6), and one N(1) atom. The C(5)-C(6) bond length is 1.53 Å. The C(5)-N(1) bond length is 1.34 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(6)-O(3) bond length is 1.26 Å. The C(6)-O(4) bond length is 1.24 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(1), and one O(2) atom. The C(7)-O(1) bond length is 1.26 Å. The C(7)-O(2) bond length is 1.25 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(5), and one O(6) atom. The C(8)-O(5) bond length is 1.25 Å. The C(8)-O(6) bond length is 1.25 Å. N(1) is bonded in a distorted trigonal planar geometry to one La(1), one C(1), and one C(5) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(2) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one La(1) and one C(7) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one La(1) and one C(7) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one La(1) and one C(6) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one La(1) and one C(6) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to one La(1) and one C(8) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one La(1) and one C(8) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)nc(C([O])=O)c1. Metal clusters: 4 [La]. The MOF has largest included sphere 4.15 A, density 2.08 g/cm3, surface area 2465.01 m2/g, accessible volume 0.16 cm3/g