DyC18N3H8O8 crystallizes in the orthorhombic Fdd2 space group. Dy(1) is bonded in a distorted pentagonal planar geometry to one O(2), one O(3), one O(5), one O(7), and one O(8) atom. The Dy(1)-O(2) bond length is 2.33 Å. The Dy(1)-O(3) bond length is 2.43 Å. The Dy(1)-O(5) bond length is 2.28 Å. The Dy(1)-O(7) bond length is 2.25 Å. The Dy(1)-O(8) bond length is 2.50 Å. There are eighteen inequivalent C sites. In the first C site, C(8) is bonded in a distorted single-bond geometry to one C(11), one C(4), and one H(4) atom. The C(8)-C(11) bond length is 1.39 Å. The C(8)-C(4) bond length is 1.39 Å. The C(8)-H(4) bond length is 0.95 Å. In the second C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(13), one O(2), and one O(6) atom. The C(9)-C(13) bond length is 1.50 Å. The C(9)-O(2) bond length is 1.27 Å. The C(9)-O(6) bond length is 1.25 Å. In the third C site, C(10) is bonded in a distorted single-bond geometry to one C(13), one C(18), and one H(5) atom. The C(10)-C(13) bond length is 1.39 Å. The C(10)-C(18) bond length is 1.37 Å. The C(10)-H(5) bond length is 0.95 Å. In the fourth C site, C(3) is bonded in a distorted single-bond geometry to one C(1), one C(4), and one H(2) atom. The C(3)-C(1) bond length is 1.41 Å. The C(3)-C(4) bond length is 1.37 Å. The C(3)-H(2) bond length is 0.95 Å. In the fifth C site, C(4) is bonded in a trigonal planar geometry to one C(14), one C(3), and one C(8) atom. The C(4)-C(14) bond length is 1.48 Å. In the sixth C site, C(5) is bonded in a distorted single-bond geometry to one C(16), one C(18), and one H(3) atom. The C(5)-C(16) bond length is 1.38 Å. The C(5)-C(18) bond length is 1.42 Å. The C(5)-H(3) bond length is 0.95 Å. In the seventh C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(16), one O(3), and one O(8) atom. The C(6)-C(16) bond length is 1.50 Å. The C(6)-O(3) bond length is 1.25 Å. The C(6)-O(8) bond length is 1.25 Å. In the eighth C site, C(7) is bonded in a distorted trigonal planar geometry to one C(18), one N(1), and one N(2) atom. The C(7)-C(18) bond length is 1.48 Å. The C(7)-N(1) bond length is 1.35 Å. The C(7)-N(2) bond length is 1.31 Å. In the ninth C site, C(11) is bonded in a trigonal planar geometry to one C(12), one C(2), and one C(8) atom. The C(11)-C(12) bond length is 1.37 Å. The C(11)-C(2) bond length is 1.48 Å. In the tenth C site, C(12) is bonded in a distorted single-bond geometry to one C(1), one C(11), and one H(6) atom. The C(12)-C(1) bond length is 1.41 Å. The C(12)-H(6) bond length is 0.95 Å. In the eleventh C site, C(13) is bonded in a trigonal planar geometry to one C(10), one C(15), and one C(9) atom. The C(13)-C(15) bond length is 1.39 Å. In the twelfth C site, C(14) is bonded in a distorted bent 120 degrees geometry to one C(4), one O(1), and one O(4) atom. The C(14)-O(1) bond length is 1.29 Å. The C(14)-O(4) bond length is 1.22 Å. In the thirteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(13), one C(16), and one H(7) atom. The C(15)-C(16) bond length is 1.40 Å. The C(15)-H(7) bond length is 0.95 Å. In the fourteenth C site, C(16) is bonded in a trigonal planar geometry to one C(15), one C(5), and one C(6) atom. In the fifteenth C site, C(17) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(5), and one O(7) atom. The C(17)-C(1) bond length is 1.50 Å. The C(17)-O(5) bond length is 1.26 Å. The C(17)-O(7) bond length is 1.25 Å. In the sixteenth C site, C(18) is bonded in a trigonal planar geometry to one C(10), one C(5), and one C(7) atom. In the seventeenth C site, C(1) is bonded in a trigonal planar geometry to one C(12), one C(17), and one C(3) atom. In the eighteenth C site, C(2) is bonded in a distorted trigonal planar geometry to one C(11), one N(1), and one N(3) atom. The C(2)-N(1) bond length is 1.34 Å. The C(2)-N(3) bond length is 1.31 Å. There are three inequivalent N sites. In the first N site, N(1) is bonded in a water-like geometry to one C(2) and one C(7) atom. In the second N site, N(2) is bonded in a distorted water-like geometry to one C(7) and one N(3) atom. The N(2)-N(3) bond length is 1.38 Å. In the third N site, N(3) is bonded in a 2-coordinate geometry to one C(2), one N(2), and one H(8) atom. The N(3)-H(8) bond length is 0.88 Å. There are eight inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 0.84 Å. In the second H site, H(2) is bonded in a single-bond geometry to one C(3) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(5) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(8) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(10) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(12) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(15) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one N(3) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one C(14) and one H(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Dy(1) and one C(9) atom. In the third O site, O(3) is bonded in a distorted single-bond geometry to one Dy(1) and one C(6) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one C(14) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Dy(1) and one C(17) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(9) atom. In the seventh O site, O(7) is bonded in a linear geometry to one Dy(1) and one C(17) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to one Dy(1) and one C(6) atom. Linkers: 15 [O]C(=O)c1cc([C]2N=C(c3cc(C([O])=O)cc(C([O])=O)c3)[N]N2)cc(C(=O)O)c1 ,1 [O]C(=O)c1cc(C([O])=O)cc(-c2n[nH]c(-c3cc(C([O])=O)cc(C(=O)O)c3)n2)c1. Metal clusters: 8 O=[C]O[Dy]12(O[C]O1)O[C]O[Dy]1(O[C]=O)(O[C]O1)O[C]O2. The MOF has largest included sphere 3.81 A, density 1.85 g/cm3, surface area 3397.50 m2/g, accessible volume 0.14 cm3/g