Li2H3(C3O2)3 crystallizes in the cubic I-43d space group. Li(1) is bonded to one O(2), one O(3), and two equivalent O(1) atoms to form corner-sharing LiO4 tetrahedra. The Li(1)-O(2) bond length is 1.90 Å. The Li(1)-O(3) bond length is 1.94 Å. Both Li(1)-O(1) bond lengths are 2.02 Å. There are six inequivalent C sites. In the first C site, C(4) is bonded in a trigonal planar geometry to one C(6) and two equivalent C(2) atoms. The C(4)-C(6) bond length is 1.50 Å. Both C(4)-C(2) bond lengths are 1.38 Å. In the second C site, C(5) is bonded in a distorted trigonal planar geometry to two equivalent C(3) and one H(2) atom. Both C(5)-C(3) bond lengths are 1.38 Å. The C(5)-H(2) bond length is 1.16 Å. In the third C site, C(6) is bonded in a bent 120 degrees geometry to one C(4) and two equivalent O(1) atoms. Both C(6)-O(1) bond lengths are 1.26 Å. In the fourth C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(2), and one O(3) atom. The C(1)-C(3) bond length is 1.53 Å. The C(1)-O(2) bond length is 1.24 Å. The C(1)-O(3) bond length is 1.26 Å. In the fifth C site, C(2) is bonded in a distorted single-bond geometry to one C(3), one C(4), and one H(1) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-H(1) bond length is 1.13 Å. In the sixth C site, C(3) is bonded in a trigonal planar geometry to one C(1), one C(2), and one C(5) atom. There are two inequivalent H sites. In the first H site, H(2) is bonded in a single-bond geometry to one C(5) atom. In the second H site, H(1) is bonded in a single-bond geometry to one C(2) atom. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Li(1) and one C(6) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one Li(1) and one C(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one Li(1) and one C(1) atom. Linkers: 24 [O]C(=O)c1cc(C([O])=O)cc(C([O])=O)c1. Metal clusters: 12 [Li]O[C]=O.[Li]O[C]=O.[Li]O[C]=O.[Li]O[C]=O.[O][C]=O.[O][C]=O. RCSR code: czz. The MOF has largest included sphere 5.16 A, density 0.93 g/cm3, surface area 4276.76 m2/g, accessible volume 0.57 cm3/g