RbC10H7(NO2)4 crystallizes in the triclinic P-1 space group. Rb(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(3) atoms. Both Rb(1)-O(1) bond lengths are 2.93 Å. Both Rb(1)-O(4) bond lengths are 2.92 Å. There are two shorter (2.96 Å) and two longer (3.11 Å) Rb(1)-O(3) bond lengths. There are five 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 1.51 Å. The C(1)-O(1) bond length is 1.25 Å. The C(1)-O(2) bond length is 1.31 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(4) atom. The C(2)-C(3) bond length is 1.46 Å. The C(2)-C(4) bond length is 1.37 Å. In the third C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(1), and one O(3) atom. The C(3)-N(1) bond length is 1.41 Å. The C(3)-O(3) bond length is 1.24 Å. In the fourth C site, C(4) is bonded in a distorted trigonal planar geometry to one C(2), one N(2), and one H(4) atom. The C(4)-N(2) bond length is 1.36 Å. The C(4)-H(4) bond length is 1.09 Å. In the fifth C site, C(5) is bonded in a trigonal planar geometry to one N(1), one N(2), and one O(4) atom. The C(5)-N(1) bond length is 1.36 Å. The C(5)-N(2) bond length is 1.38 Å. The C(5)-O(4) bond length is 1.25 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one C(3), one C(5), and one H(2) atom. The N(1)-H(2) bond length is 1.04 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(4), one C(5), and one H(3) atom. The N(2)-H(3) bond length is 1.02 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a linear geometry to two equivalent O(2) atoms. Both H(1)-O(2) bond lengths are 1.22 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 single-bond geometry to one N(2) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one C(1) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one C(1) and one H(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to two equivalent Rb(1) and one C(3) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Rb(1) and one C(5) atom. Linkers: 2 [O]C(=O)c1c[nH]c(=O)[nH]c1=O. Metal clusters: 1 [Rb]. The MOF has largest included sphere 2.42 A, density 1.81 g/cm3, surface area 3439.02 m2/g, accessible volume 0.11 cm3/g