HoC5HO6CH3CH crystallizes in the tetragonal P4_32_12 space group. The structure consists of sixteen 02329_fluka molecules and sixteen 02329_fluka molecules inside a HoC5HO6 framework. In the HoC5HO6 framework, there are three inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 8-coordinate geometry to one O(1), one O(12), one O(6), one O(7), two equivalent O(3), and two equivalent O(8) atoms. The Ho(1)-O(1) bond length is 2.31 Å. The Ho(1)-O(12) bond length is 2.30 Å. The Ho(1)-O(6) bond length is 2.42 Å. The Ho(1)-O(7) bond length is 2.23 Å. There is one shorter (2.32 Å) and one longer (2.50 Å) Ho(1)-O(3) bond length. There is one shorter (2.30 Å) and one longer (2.58 Å) Ho(1)-O(8) bond length. In the second Ho site, Ho(2) is bonded in a 8-coordinate geometry to two equivalent O(10), two equivalent O(2), two equivalent O(4), and two equivalent O(9) atoms. Both Ho(2)-O(10) bond lengths are 2.33 Å. Both Ho(2)-O(2) bond lengths are 2.35 Å. Both Ho(2)-O(4) bond lengths are 2.56 Å. Both Ho(2)-O(9) bond lengths are 2.22 Å. In the third Ho site, Ho(3) is bonded in a 8-coordinate geometry to two equivalent O(11), two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms. Both Ho(3)-O(11) bond lengths are 2.41 Å. Both Ho(3)-O(2) bond lengths are 2.52 Å. Both Ho(3)-O(4) bond lengths are 2.30 Å. Both Ho(3)-O(5) bond lengths are 2.32 Å. There are ten inequivalent C sites. In the first C site, C(1) is bonded in a distorted bent 120 degrees geometry to one C(14), one O(5), and one O(9) atom. The C(1)-C(14) bond length is 1.47 Å. The C(1)-O(5) bond length is 1.24 Å. The C(1)-O(9) bond length is 1.27 Å. In the second C site, C(3) is bonded in a bent 120 degrees geometry to one C(6), one O(6), and one O(8) atom. The C(3)-C(6) bond length is 1.51 Å. The C(3)-O(6) bond length is 1.25 Å. The C(3)-O(8) bond length is 1.28 Å. In the third C site, C(4) is bonded in a distorted bent 120 degrees geometry to one O(12) and one O(3) atom. The C(4)-O(12) bond length is 1.27 Å. The C(4)-O(3) bond length is 1.27 Å. In the fourth C site, C(5) is bonded in a bent 120 degrees geometry to one C(7), one O(11), and one O(2) atom. The C(5)-C(7) bond length is 1.53 Å. The C(5)-O(11) bond length is 1.25 Å. The C(5)-O(2) bond length is 1.25 Å. In the fifth C site, C(6) is bonded in a bent 120 degrees geometry to one C(3) and one C(7) atom. The C(6)-C(7) bond length is 1.44 Å. In the sixth C site, C(7) is bonded in a bent 120 degrees geometry to one C(5) and one C(6) atom. In the seventh C site, C(9) is bonded in a distorted bent 120 degrees geometry to one O(10) and one O(4) atom. The C(9)-O(10) bond length is 1.28 Å. The C(9)-O(4) bond length is 1.25 Å. In the eighth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(7) atom. The C(10)-O(1) bond length is 1.30 Å. The C(10)-O(7) bond length is 1.25 Å. In the ninth C site, C(11) is bonded in a distorted single-bond geometry to one C(14) and one H(5) atom. The C(11)-C(14) bond length is 1.43 Å. The C(11)-H(5) bond length is 0.98 Å. In the tenth C site, C(14) is bonded in a 3-coordinate geometry to one C(1), one C(11), and one H(10) atom. The C(14)-H(10) bond length is 0.98 Å. There are two inequivalent H sites. In the first H site, H(5) is bonded in a single-bond geometry to one C(11) atom. In the second H site, H(10) is bonded in a single-bond geometry to one C(14) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Ho(1) and one C(10) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ho(2), one Ho(3), and one C(5) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Ho(1) and one C(4) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to one Ho(2), one Ho(3), and one C(9) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Ho(3) and one C(1) atom. In the sixth O site, O(6) is bonded in a distorted water-like geometry to one Ho(1) and one C(3) atom. In the seventh O site, O(7) is bonded in a bent 150 degrees geometry to one Ho(1) and one C(10) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to two equivalent Ho(1) and one C(3) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one Ho(2) and one C(1) atom. In the tenth O site, O(10) is bonded in a distorted water-like geometry to one Ho(2) and one C(9) atom. In the eleventh O site, O(11) is bonded in a distorted L-shaped geometry to one Ho(3) and one C(5) atom. In the twelfth O site, O(12) is bonded in a water-like geometry to one Ho(1) and one C(4) atom. Linkers: 8 C[C@H](C([O])=O)[C@@H](C)C([O])=O ,8 [O]C(=O)[CH][CH]C([O])=O ,8 [O]C(=O)[C][C]C([O])=O. Metal clusters: 16 [Ho]. The MOF has largest included sphere 5.80 A, density 1.92 g/cm3, surface area 2552.64 m2/g, accessible volume 0.26 cm3/g