Rb2U(N2O7)2 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(7), two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms. U(1) is bonded in a distorted linear geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(7) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(3), one O(5), and one O(6) atom. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Rb(1), one U(1), and one N(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Rb(1), one U(1), and one N(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one U(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one N(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one N(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Rb(1), one U(1), and one N(1) atom.
Rb2U(N2O7)2 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(7), two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms. The Rb(1)-O(1) bond length is 3.11 Å. The Rb(1)-O(3) bond length is 3.31 Å. The Rb(1)-O(7) bond length is 3.10 Å. There is one shorter (3.21 Å) and one longer (3.27 Å) Rb(1)-O(2) bond length. There is one shorter (3.00 Å) and one longer (3.04 Å) Rb(1)-O(5) bond length. There is one shorter (3.09 Å) and one longer (3.12 Å) Rb(1)-O(6) bond length. U(1) is bonded in a distorted linear geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(7) atoms. Both U(1)-O(2) bond lengths are 2.57 Å. Both U(1)-O(3) bond lengths are 2.41 Å. Both U(1)-O(4) bond lengths are 1.80 Å. Both U(1)-O(7) bond lengths are 2.55 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(7) atom. The N(1)-O(1) bond length is 1.23 Å. The N(1)-O(2) bond length is 1.29 Å. The N(1)-O(7) bond length is 1.28 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(3), one O(5), and one O(6) atom. The N(2)-O(3) bond length is 1.31 Å. The N(2)-O(5) bond length is 1.25 Å. The N(2)-O(6) bond length is 1.25 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one N(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Rb(1), one U(1), and one N(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Rb(1), one U(1), and one N(2) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one U(1) atom. In the fifth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one N(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one N(2) atom. In the seventh O site, O(7) is bonded in a distorted single-bond geometry to one Rb(1), one U(1), and one N(1) atom.