ScC7H5(NO4)2 crystallizes in the trigonal R-3 space group. Sc(1) is bonded in a pentagonal bipyramidal geometry to one N(1), one O(1), one O(2), one O(3), one O(4), one O(5), and one O(7) atom. The Sc(1)-N(1) bond length is 2.36 Å. The Sc(1)-O(1) bond length is 2.16 Å. The Sc(1)-O(2) bond length is 2.25 Å. The Sc(1)-O(3) bond length is 2.26 Å. The Sc(1)-O(4) bond length is 2.13 Å. The Sc(1)-O(5) bond length is 2.05 Å. The Sc(1)-O(7) bond length is 2.14 Å. There are seven inequivalent C sites. In the first C site, C(5) is bonded in a distorted trigonal planar geometry to one C(2), one C(6), and one N(1) atom. The C(5)-C(2) bond length is 1.40 Å. The C(5)-C(6) bond length is 1.50 Å. The C(5)-N(1) bond length is 1.35 Å. In the second C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(5), one O(1), and one O(4) atom. The C(6)-O(1) bond length is 1.27 Å. The C(6)-O(4) bond length is 1.27 Å. In the third C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(2), one O(5), and one O(6) atom. The C(7)-C(2) bond length is 1.51 Å. The C(7)-O(5) bond length is 1.27 Å. The C(7)-O(6) bond length is 1.26 Å. In the fourth C site, C(1) is bonded in a distorted trigonal planar geometry to one C(3), one N(1), and one H(1) atom. The C(1)-C(3) bond length is 1.40 Å. The C(1)-N(1) bond length is 1.34 Å. The C(1)-H(1) bond length is 1.09 Å. In the fifth C site, C(2) is bonded in a trigonal planar geometry to one C(4), one C(5), and one C(7) atom. The C(2)-C(4) bond length is 1.40 Å. In the sixth C site, C(3) is bonded in a distorted single-bond geometry to one C(1) and one H(2) atom. The C(3)-H(2) bond length is 1.09 Å. In the seventh C site, C(4) is bonded in a distorted single-bond geometry to one C(2) and one H(3) atom. The C(4)-H(3) bond length is 1.09 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Sc(1), one C(1), and one C(5) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(8) atom. The N(2)-O(2) bond length is 1.30 Å. The N(2)-O(3) bond length is 1.28 Å. The N(2)-O(8) bond length is 1.23 Å. There are five inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. 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(4) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(6) and one O(7) atom. The H(4)-O(6) bond length is 1.72 Å. The H(4)-O(7) bond length is 1.00 Å. In the fifth H site, H(5) is bonded in a distorted linear geometry to one O(6) and one O(7) atom. The H(5)-O(6) bond length is 1.64 Å. The H(5)-O(7) bond length is 1.01 Å. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Sc(1) and one C(6) atom. In the second O site, O(2) is bonded in an L-shaped geometry to one Sc(1) and one N(2) atom. In the third O site, O(3) is bonded in an L-shaped geometry to one Sc(1) and one N(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Sc(1) and one C(6) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Sc(1) and one C(7) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one C(7), one H(4), and one H(5) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Sc(1), one H(4), and one H(5) atom. In the eighth O site, O(8) is bonded in a single-bond geometry to one N(2) atom. Linkers: 6 [O]C(=O)c1cccnc1C([O])=O. Metal clusters: 6 [Sc]. The MOF has largest included sphere 3.77 A, density 1.81 g/cm3, surface area 3449.03 m2/g, accessible volume 0.15 cm3/g