HoC2H4O6F crystallizes in the monoclinic C2/c space group. Ho(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent F(1) atoms. Both Ho(1)-O(1) bond lengths are 2.41 Å. Both Ho(1)-O(2) bond lengths are 2.41 Å. Both Ho(1)-O(3) bond lengths are 2.39 Å. Both Ho(1)-F(1) bond lengths are 2.13 Å. C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.27 Å. The C(1)-O(2) bond length is 1.27 Å. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. The H(1)-O(3) bond length is 0.99 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(3) atom. The H(2)-O(3) bond length is 0.99 Å. There are three inequivalent O sites. In the first O site, O(2) is bonded in a bent 120 degrees geometry to one Ho(1) and one C(1) atom. In the second O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Ho(1), one H(1), and one H(2) atom. In the third O site, O(1) is bonded in a bent 120 degrees geometry to one Ho(1) and one C(1) atom. F(1) is bonded in a linear geometry to two equivalent Ho(1) atoms. Linkers: 1 [O]C(=O)C([O])=O. Metal clusters: 2 [Ho]. The MOF has largest included sphere 4.47 A, density 2.38 g/cm3, surface area 1928.47 m2/g, accessible volume 0.19 cm3/g