DyC6N2H5O7 crystallizes in the trigonal R32 space group. Dy(1) is bonded in a 8-coordinate geometry to two equivalent N(1), two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Both Dy(1)-N(1) bond lengths are 2.65 Å. Both Dy(1)-O(1) bond lengths are 2.32 Å. Both Dy(1)-O(2) bond lengths are 2.34 Å. Both Dy(1)-O(4) bond lengths are 2.33 Å. There are four inequivalent C sites. In the first C site, C(3) is bonded in a distorted trigonal planar geometry to two equivalent C(2) and one H(1) atom. Both C(3)-C(2) bond lengths are 1.39 Å. The C(3)-H(1) bond length is 1.09 Å. In the second C site, C(4) is bonded in a trigonal planar geometry to two equivalent N(1) and one O(3) atom. Both C(4)-N(1) bond lengths are 1.38 Å. The C(4)-O(3) bond length is 1.27 Å. In the third C site, 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 1.26 Å. The C(1)-O(2) bond length is 1.28 Å. In the fourth C site, C(2) is bonded in a distorted single-bond geometry to one C(3) and one N(1) atom. The C(2)-N(1) bond length is 1.34 Å. N(1) is bonded in a distorted trigonal planar geometry to one Dy(1), one C(2), and one C(4) atom. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one O(4) atom. The H(2)-O(4) bond length is 0.99 Å. In the third H site, H(3) is bonded in a distorted single-bond geometry to one O(3) and one O(4) atom. The H(3)-O(3) bond length is 1.64 Å. The H(3)-O(4) bond length is 1.01 Å. There are four inequivalent O sites. In the first O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Dy(1) and one C(1) atom. In the second O site, O(3) is bonded in a distorted trigonal planar geometry to one C(4) and two equivalent H(3) atoms. In the third O site, O(4) is bonded in a distorted water-like geometry to one Dy(1), one H(2), and one H(3) atom. In the fourth O site, O(1) is bonded in a bent 150 degrees geometry to one Dy(1) and one C(1) atom. Linkers: 3 [O]C(=O)C1=NC(=O)N=C(C([O])=O)[CH]1. Metal clusters: 3 [Dy]. RCSR code: nbo. The MOF has largest included sphere 6.14 A, density 2.19 g/cm3, surface area 2357.25 m2/g, accessible volume 0.18 cm3/g