Y2Cu3H24(C4O5)6 crystallizes in the hexagonal P6/mcc space group. Y(1) is bonded in a 9-coordinate geometry to three equivalent O(3) and six equivalent O(1) atoms. All Y(1)-O(3) bond lengths are 2.46 Å. All Y(1)-O(1) bond lengths are 2.37 Å. Cu(1) is bonded in a square co-planar geometry to four equivalent O(2) atoms. All Cu(1)-O(2) bond lengths are 1.95 Å. There are two inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.24 Å. In the second C site, C(2) is bonded in a distorted trigonal non-coplanar geometry to two equivalent H(1,2) and one O(3) atom. Both C(2)-H(1,2) bond lengths are 0.97 Å. The C(2)-O(3) bond length is 1.39 Å. H(1,2) is bonded in a single-bond geometry to one C(2) atom. There are three inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Y(1) and two equivalent C(2) atoms. In the second O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Y(1) and one C(1) atom. In the third O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and one C(1) atom. Linkers: 12 [O]C(=O)COCC([O])=O. Metal clusters: 4 [Y] ,6 [Cu]. The MOF has largest included sphere 8.30 A, density 1.37 g/cm3, surface area 3461.32 m2/g, accessible volume 0.38 cm3/g