DyC10H9(N2O5)2 crystallizes in the monoclinic P2_1/c space group. Dy(1) is bonded in a 8-coordinate geometry to one N(2), one N(3), one O(1), one O(10), one O(2), one O(3), one O(6), and one O(9) atom. The Dy(1)-N(2) bond length is 2.54 Å. The Dy(1)-N(3) bond length is 2.44 Å. The Dy(1)-O(1) bond length is 2.28 Å. The Dy(1)-O(10) bond length is 2.31 Å. The Dy(1)-O(2) bond length is 2.32 Å. The Dy(1)-O(3) bond length is 2.52 Å. The Dy(1)-O(6) bond length is 2.35 Å. The Dy(1)-O(9) bond length is 2.35 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(2), one O(1), and one O(2) atom. The C(1)-C(2) bond length is 1.49 Å. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.27 Å. In the second C site, C(2) is bonded in a distorted single-bond geometry to one C(1), one C(3), and one N(2) atom. The C(2)-C(3) bond length is 1.41 Å. The C(2)-N(2) bond length is 1.35 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to one C(2), one C(4), and one H(4) atom. The C(3)-C(4) bond length is 1.40 Å. The C(3)-H(4) bond length is 1.08 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 N(1) atom. The C(4)-C(5) bond length is 1.47 Å. The C(4)-N(1) bond length is 1.37 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(7), and one O(8) atom. The C(5)-O(7) bond length is 1.24 Å. The C(5)-O(8) bond length is 1.33 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one O(3) and one O(4) atom. The C(6)-O(3) bond length is 1.29 Å. The C(6)-O(4) bond length is 1.26 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(8) and one N(3) atom. The C(7)-C(8) bond length is 1.41 Å. The C(7)-N(3) bond length is 1.35 Å. In the eighth C site, C(8) is bonded in a distorted single-bond geometry to one C(7), one C(9), and one H(5) atom. The C(8)-C(9) bond length is 1.40 Å. The C(8)-H(5) bond length is 1.08 Å. In the ninth C site, C(9) is bonded in a distorted single-bond geometry to one C(10), one C(8), and one N(4) atom. The C(9)-C(10) bond length is 1.48 Å. The C(9)-N(4) bond length is 1.36 Å. In the tenth C site, C(10) is bonded in a distorted bent 120 degrees geometry to one C(9), one O(5), and one O(6) atom. The C(10)-O(5) bond length is 1.27 Å. The C(10)-O(6) bond length is 1.27 Å. There are four inequivalent N sites. In the first N site, N(1) is bonded in a 2-coordinate geometry to one C(4), one N(2), and one H(2) atom. The N(1)-N(2) bond length is 1.33 Å. The N(1)-H(2) bond length is 1.03 Å. In the second N site, N(2) is bonded in a distorted single-bond geometry to one Dy(1), one C(2), and one N(1) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one Dy(1), one C(7), and one N(4) atom. The N(3)-N(4) bond length is 1.33 Å. In the fourth N site, N(4) is bonded in a 2-coordinate geometry to one C(9), one N(3), and one H(3) atom. The N(4)-H(3) bond length is 1.06 Å. There are nine inequivalent H sites. In the first H site, H(1) is bonded in a distorted linear geometry to one O(3) and one O(8) atom. The H(1)-O(3) bond length is 1.62 Å. The H(1)-O(8) bond length is 1.03 Å. In the second H site, H(2) is bonded in a single-bond geometry to one N(1) atom. In the third H site, H(3) is bonded in a distorted linear geometry to one N(4) and one O(5) atom. The H(3)-O(5) bond length is 1.63 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(3) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(8) atom. In the sixth H site, H(6) is bonded in a linear geometry to one O(4) and one O(9) atom. The H(6)-O(4) bond length is 1.58 Å. The H(6)-O(9) bond length is 1.01 Å. In the seventh H site, H(7) is bonded in a single-bond geometry to one O(9) atom. The H(7)-O(9) bond length is 0.97 Å. In the eighth H site, H(8) is bonded in a distorted single-bond geometry to one O(10) and one O(5) atom. The H(8)-O(10) bond length is 1.00 Å. The H(8)-O(5) bond length is 1.66 Å. In the ninth H site, H(9) is bonded in a single-bond geometry to one O(10) and one O(7) atom. The H(9)-O(10) bond length is 0.99 Å. The H(9)-O(7) bond length is 1.71 Å. There are ten inequivalent O sites. In the first O site, O(9) is bonded in a distorted water-like geometry to one Dy(1), one H(6), and one H(7) atom. In the second O site, O(10) is bonded in a distorted water-like geometry to one Dy(1), one H(8), and one H(9) atom. In the third O site, O(1) is bonded in a bent 150 degrees geometry to one Dy(1) and one C(1) atom. In the fourth O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Dy(1) and one C(1) atom. In the fifth O site, O(3) is bonded in a distorted trigonal planar geometry to one Dy(1), one C(6), and one H(1) atom. In the sixth O site, O(4) is bonded in a bent 120 degrees geometry to one C(6) and one H(6) atom. In the seventh O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one C(10), one H(3), and one H(8) atom. In the eighth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Dy(1) and one C(10) atom. In the ninth O site, O(7) is bonded in a distorted single-bond geometry to one C(5) and one H(9) atom. In the tenth O site, O(8) is bonded in a bent 120 degrees geometry to one C(5) and one H(1) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)[nH]n1. Metal clusters: 4 [Dy]. The MOF has largest included sphere 1.81 A, density 2.44 g/cm3, surface area 2813.84 m2/g, accessible volume 0.05 cm3/g