LaC5H6O8 crystallizes in the monoclinic P2_1/c space group. La(1) is bonded in a 10-coordinate geometry to one O(1), one O(2), one O(3), one O(6), one O(7), one O(8), two equivalent O(4), and two equivalent O(5) atoms. The La(1)-O(1) bond length is 2.74 Å. The La(1)-O(2) bond length is 2.56 Å. The La(1)-O(3) bond length is 2.59 Å. The La(1)-O(6) bond length is 2.52 Å. The La(1)-O(7) bond length is 2.55 Å. The La(1)-O(8) bond length is 2.54 Å. There is one shorter (2.50 Å) and one longer (2.82 Å) La(1)-O(4) bond length. There is one shorter (2.56 Å) and one longer (2.87 Å) La(1)-O(5) bond length. There are five inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal non-coplanar geometry to one H(3), one H(4), and one O(1) atom. The C(1)-H(3) bond length is 1.10 Å. The C(1)-H(4) bond length is 1.10 Å. The C(1)-O(1) bond length is 1.43 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one O(2) and one O(3) atom. The C(2)-O(2) bond length is 1.26 Å. The C(2)-O(3) bond length is 1.28 Å. In the third C site, C(3) is bonded in a distorted trigonal non-coplanar geometry to one H(5), one H(6), and one O(1) atom. The C(3)-H(5) bond length is 1.10 Å. The C(3)-H(6) bond length is 1.10 Å. The C(3)-O(1) bond length is 1.43 Å. In the fourth C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(4) and one O(5) atom. The C(4)-O(4) bond length is 1.27 Å. The C(4)-O(5) bond length is 1.27 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one O(6) and one O(7) atom. The C(5)-O(6) bond length is 1.26 Å. The C(5)-O(7) bond length is 1.27 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a distorted single-bond geometry to one O(8) atom. The H(1)-O(8) bond length is 1.00 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 0.98 Å. In the third H site, H(3) is bonded in a single-bond geometry to one C(1) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(1) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(3) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(3) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one La(1), one C(1), and one C(3) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one La(1) and one C(2) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one La(1) and one C(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to two equivalent La(1) and one C(4) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent La(1) and one C(4) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one La(1) and one C(5) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one La(1) and one C(5) atom. In the eighth O site, O(8) is bonded in a distorted water-like geometry to one La(1), one H(1), and one H(2) atom. Linkers: 1 [O]C(=O)C([O])=O. Metal clusters: 4 [La]. The MOF has largest included sphere 1.98 A, density 2.73 g/cm3, surface area 2146.20 m2/g, accessible volume 0.05 cm3/g