NaCeC8H4(NO5)2 crystallizes in the orthorhombic Pnma space group. Na(1) is bonded in a 3-coordinate geometry to one O(4) and two equivalent O(2) atoms. The Na(1)-O(4) bond length is 2.76 Å. Both Na(1)-O(2) bond lengths are 2.54 Å. Ce(1) is bonded in a 9-coordinate geometry to one N(1), one O(4), one O(7), two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. The Ce(1)-N(1) bond length is 2.55 Å. The Ce(1)-O(4) bond length is 2.42 Å. The Ce(1)-O(7) bond length is 2.43 Å. Both Ce(1)-O(1) bond lengths are 2.41 Å. Both Ce(1)-O(2) bond lengths are 2.57 Å. Both Ce(1)-O(3) bond lengths are 2.44 Å. There are eight inequivalent C sites. In the first C site, C(1) is bonded in a distorted trigonal planar geometry to one C(2), one C(5), and one N(1) atom. The C(1)-C(2) bond length is 1.38 Å. The C(1)-C(5) bond length is 1.53 Å. The C(1)-N(1) bond length is 1.34 Å. In the second C site, C(2) is bonded in a distorted trigonal planar geometry to one C(1), one C(6), and one N(2) atom. The C(2)-C(6) bond length is 1.54 Å. The C(2)-N(2) bond length is 1.35 Å. In the third C site, C(3) is bonded in a distorted trigonal planar geometry to one C(4), one C(7), and one N(2) atom. The C(3)-C(4) bond length is 1.41 Å. The C(3)-C(7) bond length is 1.48 Å. The C(3)-N(2) bond length is 1.32 Å. In the fourth C site, C(4) is bonded in a distorted single-bond geometry to one C(3) and one N(1) atom. The C(4)-N(1) bond length is 1.31 Å. In the fifth C site, C(5) is bonded in a distorted bent 120 degrees geometry to one C(1), one O(4), and one O(5) atom. The C(5)-O(4) bond length is 1.28 Å. The C(5)-O(5) bond length is 1.21 Å. In the sixth C site, C(6) is bonded in a distorted bent 120 degrees geometry to one C(2) and two equivalent O(1) atoms. Both C(6)-O(1) bond lengths are 1.23 Å. In the seventh C site, C(7) is bonded in a distorted bent 120 degrees geometry to one C(3) and two equivalent O(2) atoms. Both C(7)-O(2) bond lengths are 1.27 Å. In the eighth C site, C(8) is bonded in a distorted bent 120 degrees geometry to one O(6) and one O(7) atom. The C(8)-O(6) bond length is 1.24 Å. The C(8)-O(7) bond length is 1.26 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a distorted bent 120 degrees geometry to one Ce(1), one C(1), and one C(4) atom. In the second N site, N(2) is bonded in a bent 120 degrees geometry to one C(2) and one C(3) atom. There are two inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one O(3) atom. The H(1)-O(3) bond length is 0.84 Å. In the second H site, H(2) is bonded in a single-bond geometry to one O(3) atom. The H(2)-O(3) bond length is 0.83 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Ce(1) and one C(6) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one Na(1), one Ce(1), and one C(7) atom. In the third O site, O(3) is bonded in a water-like geometry to one Ce(1), one H(1), and one H(2) atom. In the fourth O site, O(4) is bonded in a distorted single-bond geometry to one Na(1), one Ce(1), and one C(5) atom. In the fifth O site, O(5) is bonded in a single-bond geometry to one C(5) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one C(8) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Ce(1) and one C(8) atom. Linkers: 4 [O]C(=O)c1nc(C([O])=O)c(C([O])=O)nc1C([O])=O. Metal clusters: 4 [Na] ,4 [Ce]. The MOF has largest included sphere 4.02 A, density 2.02 g/cm3, surface area 2736.57 m2/g, accessible volume 0.12 cm3/g