Li2MnH10(C7O5)2(CH)2 crystallizes in the monoclinic C2/c space group. The structure consists of eight 02329_fluka molecules inside a Li2MnH10(C7O5)2 framework. In the Li2MnH10(C7O5)2 framework, Li(1) is bonded in a distorted tetrahedral geometry to one O(1), one O(2), one O(3), and one O(5) atom. The Li(1)-O(1) bond length is 1.95 Å. The Li(1)-O(2) bond length is 1.93 Å. The Li(1)-O(3) bond length is 2.01 Å. The Li(1)-O(5) bond length is 1.97 Å. Mn(1) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. Both Mn(1)-O(1) bond lengths are 2.23 Å. Both Mn(1)-O(2) bond lengths are 2.33 Å. Both Mn(1)-O(3) bond lengths are 2.16 Å. There are seven inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(3), one O(1), and one O(2) atom. The C(1)-C(3) bond length is 1.48 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.28 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(3), and one O(4) atom. The C(2)-C(5) bond length is 1.49 Å. The C(2)-O(3) bond length is 1.29 Å. The C(2)-O(4) bond length is 1.27 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one C(1), 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 1.40 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(3) atom. The C(4)-C(5) bond length is 1.40 Å. The C(4)-H(3) bond length is 1.08 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one C(2), one C(4), and one C(6) atom. The C(5)-C(6) bond length is 1.40 Å. In the sixth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(4) atom. The C(6)-H(4) bond length is 1.09 Å. In the seventh C site, C(8) is bonded in a distorted single-bond geometry to one C(3) and one H(6) atom. The C(8)-H(6) bond length is 1.09 Å. There are five 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 0.99 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 0.99 Å. In the third H site, H(3) is bonded in a single-bond geometry to one C(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(6) atom. In the fifth H site, H(6) is bonded in a single-bond geometry to one C(8) atom. There are five inequivalent O sites. In the first O site, O(2) is bonded in a 3-coordinate geometry to one Li(1), one Mn(1), and one C(1) atom. In the second O site, O(3) is bonded in a distorted T-shaped geometry to one Li(1), one Mn(1), and one C(2) atom. In the third O site, O(4) is bonded in a single-bond geometry to one C(2) atom. In the fourth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Li(1), one H(1), and one H(2) atom. In the fifth O site, O(1) is bonded in a distorted T-shaped geometry to one Li(1), one Mn(1), and one C(1) atom. Linkers: 4 [O]C(=O)c1cccc(C([O])=O)c1. Metal clusters: 4 [Li] ,2 [Mn]. The MOF has largest included sphere 2.15 A, density 1.75 g/cm3, surface area 3437.64 m2/g, accessible volume 0.11 cm3/g