LaC5NH3O5(CH)2 crystallizes in the tetragonal I4_1/a space group. The structure consists of thirty-two 02329_fluka molecules inside a LaC5NH3O5 framework. In the LaC5NH3O5 framework, La(1) is bonded in a 6-coordinate geometry to one N(1), one O(1), one O(2), one O(3), one O(4), and one O(5) atom. The La(1)-N(1) bond length is 2.67 Å. The La(1)-O(1) bond length is 2.51 Å. The La(1)-O(2) bond length is 2.51 Å. The La(1)-O(3) bond length is 2.52 Å. The La(1)-O(4) bond length is 2.52 Å. The La(1)-O(5) bond length is 2.61 Å. There are five 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 1.24 Å. The C(1)-O(2) 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 1.36 Å. The C(2)-N(1) bond length is 1.35 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2) and one H(3) atom. The C(3)-H(3) bond length is 0.93 Å. In the fourth C site, C(6) is bonded in a distorted single-bond geometry to one N(1) atom. The C(6)-N(1) bond length is 1.33 Å. In the fifth C site, C(7) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(7)-O(3) bond length is 1.25 Å. The C(7)-O(4) bond length is 1.24 Å. N(1) is bonded in a distorted trigonal planar geometry to one La(1), one C(2), and one C(6) atom. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(5) atom. The H(1)-O(5) bond length is 0.87 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(5) atom. The H(2)-O(5) bond length is 0.85 Å. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one La(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one La(1) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one La(1) and one C(7) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one La(1) and one C(7) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one La(1), one H(1), and one H(2) atom. Linkers: 16 [O]C(=O)c1cccc(C([O])=O)n1. Metal clusters: 16 [La]. The MOF has largest included sphere 9.07 A, density 1.06 g/cm3, surface area 3492.79 m2/g, accessible volume 0.64 cm3/g