U2C15NH6O11(CO2)N crystallizes in the triclinic P-1 space group. The structure consists of two nitromethane molecules inside a U2C15NH6O11 framework. In the U2C15NH6O11 framework, there are two inequivalent U sites. In the first U site, U(1) is bonded in a distorted pentagonal planar geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. The U(1)-O(1) bond length is 2.45 Å. The U(1)-O(2) bond length is 2.48 Å. The U(1)-O(3) bond length is 2.31 Å. The U(1)-O(4) bond length is 2.36 Å. The U(1)-O(5) bond length is 2.33 Å. In the second U site, U(2) is bonded in a distorted pentagonal planar geometry to one O(6), one O(7), one O(8), and two equivalent O(9) atoms. The U(2)-O(6) bond length is 2.34 Å. The U(2)-O(7) bond length is 2.49 Å. The U(2)-O(8) bond length is 2.44 Å. There is one shorter (2.32 Å) and one longer (2.36 Å) U(2)-O(9) bond length. There are fifteen 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 1.50 Å. The C(1)-O(1) bond length is 1.28 Å. The C(1)-O(2) bond length is 1.26 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(7) atom. The C(2)-C(3) bond length is 1.39 Å. The C(2)-C(7) bond length is 1.39 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 1.39 Å. The C(3)-H(4) bond length is 0.85 Å. In the fourth C site, C(4) is bonded in a trigonal planar geometry to one C(3), one C(5), and one C(8) atom. The C(4)-C(5) bond length is 1.39 Å. The C(4)-C(8) bond length is 1.50 Å. In the fifth C site, C(5) is bonded in a distorted single-bond geometry to one C(4), one C(6), and one H(5) atom. The C(5)-C(6) bond length is 1.38 Å. The C(5)-H(5) bond length is 0.89 Å. In the sixth C site, C(6) is bonded in a distorted trigonal planar geometry to one C(5), one C(7), and one N(2) atom. The C(6)-C(7) bond length is 1.38 Å. The C(6)-N(2) bond length is 1.48 Å. In the seventh C site, C(7) is bonded in a distorted single-bond geometry to one C(2), one C(6), and one H(6) atom. The C(7)-H(6) bond length is 0.83 Å. In the eighth C site, C(8) is bonded in a distorted trigonal planar geometry to one C(4), one O(3), and one O(4) atom. The C(8)-O(3) bond length is 1.26 Å. The C(8)-O(4) bond length is 1.26 Å. In the ninth C site, C(9) is bonded in a distorted bent 120 degrees geometry to one C(10), one O(7), and one O(8) atom. The C(9)-C(10) bond length is 1.50 Å. The C(9)-O(7) bond length is 1.27 Å. The C(9)-O(8) bond length is 1.27 Å. In the tenth C site, C(10) is bonded in a trigonal planar geometry to one C(11), one C(15), and one C(9) atom. The C(10)-C(11) bond length is 1.39 Å. The C(10)-C(15) bond length is 1.39 Å. In the eleventh C site, C(11) is bonded in a distorted single-bond geometry to one C(10), one C(12), and one H(2) atom. The C(11)-C(12) bond length is 1.39 Å. The C(11)-H(2) bond length is 0.93 Å. In the twelfth C site, C(12) is bonded in a trigonal planar geometry to one C(11), one C(13), and one C(16) atom. The C(12)-C(13) bond length is 1.39 Å. The C(12)-C(16) bond length is 1.50 Å. In the thirteenth C site, C(13) is bonded in a distorted single-bond geometry to one C(12) and one H(3) atom. The C(13)-H(3) bond length is 0.91 Å. In the fourteenth C site, C(15) is bonded in a distorted single-bond geometry to one C(10) and one H(1) atom. The C(15)-H(1) bond length is 0.99 Å. In the fifteenth C site, C(16) is bonded in a distorted bent 120 degrees geometry to one C(12), one O(5), and one O(6) atom. The C(16)-O(5) bond length is 1.26 Å. The C(16)-O(6) bond length is 1.26 Å. N(2) is bonded in a trigonal planar geometry to one C(6), one O(10), and one O(11) atom. The N(2)-O(10) bond length is 1.23 Å. The N(2)-O(11) bond length is 1.22 Å. There are six inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(15) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(11) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(13) atom. 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(5) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(7) atom. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one U(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one U(1) and one C(1) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one U(1) and one C(8) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one U(1) and one C(8) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one U(1) and one C(16) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one U(2) and one C(16) atom. In the seventh O site, O(7) is bonded in a distorted L-shaped geometry to one U(2) and one C(9) atom. In the eighth O site, O(8) is bonded in a distorted L-shaped geometry to one U(2) and one C(9) atom. In the ninth O site, O(9) is bonded in a water-like geometry to two equivalent U(2) atoms. In the tenth O site, O(10) is bonded in a single-bond geometry to one N(2) atom. In the eleventh O site, O(11) is bonded in a single-bond geometry to one N(2) atom. Linkers: 4 [O]C(=O)c1cc(C([O])=O)cc([N+](=O)[O-])c1. Metal clusters: 4 [U]. The MOF has largest included sphere 5.97 A, density 2.03 g/cm3, surface area 2438.19 m2/g, accessible volume 0.19 cm3/g