RbNO3 crystallizes in the trigonal P3_2 space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and two equivalent O(9) atoms. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one O(2), one O(5), one O(7), and two equivalent O(8) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one O(3), one O(4), one O(6), one O(9), two equivalent O(1), and two equivalent O(2) atoms. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one O(3), one O(5), and one O(8) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(4), one O(7), and one O(9) atom. In the third N site, N(3) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(6) atom. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a 4-coordinate geometry to one Rb(3), two equivalent Rb(1), and one N(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Rb(3) and one N(3) atom. In the third O site, O(2) is bonded in a 4-coordinate geometry to one Rb(2), two equivalent Rb(3), and one N(3) atom. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(3), and one N(1) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(3), and one N(2) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), and one N(1) atom. In the seventh O site, O(6) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(3), and one N(3) atom. In the eighth O site, O(7) is bonded in a distorted single-bond geometry to one Rb(2) and one N(2) atom. In the ninth O site, O(8) is bonded in a distorted trigonal planar geometry to two equivalent Rb(2) and one N(1) atom.
RbNO3 crystallizes in the trigonal P3_2 space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and two equivalent O(9) atoms. The Rb(1)-O(3) bond length is 3.07 Å. The Rb(1)-O(4) bond length is 2.85 Å. The Rb(1)-O(5) bond length is 3.16 Å. The Rb(1)-O(6) bond length is 2.89 Å. There is one shorter (2.88 Å) and one longer (3.11 Å) Rb(1)-O(9) bond length. In the second Rb site, Rb(2) is bonded in a 5-coordinate geometry to one O(2), one O(5), one O(7), and two equivalent O(8) atoms. The Rb(2)-O(2) bond length is 2.81 Å. The Rb(2)-O(5) bond length is 2.83 Å. The Rb(2)-O(7) bond length is 3.19 Å. There is one shorter (2.85 Å) and one longer (2.94 Å) Rb(2)-O(8) bond length. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one O(3), one O(4), one O(6), one O(9), two equivalent O(1), and two equivalent O(2) atoms. The Rb(3)-O(3) bond length is 2.94 Å. The Rb(3)-O(4) bond length is 3.09 Å. The Rb(3)-O(6) bond length is 3.30 Å. The Rb(3)-O(9) bond length is 3.17 Å. There is one shorter (2.87 Å) and one longer (3.21 Å) Rb(3)-O(1) bond length. There is one shorter (2.99 Å) and one longer (3.01 Å) Rb(3)-O(2) bond length. There are three inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one O(3), one O(5), and one O(8) atom. The N(1)-O(3) bond length is 1.27 Å. The N(1)-O(5) bond length is 1.27 Å. The N(1)-O(8) bond length is 1.27 Å. In the second N site, N(2) is bonded in a trigonal planar geometry to one O(4), one O(7), and one O(9) atom. The N(2)-O(4) bond length is 1.27 Å. The N(2)-O(7) bond length is 1.26 Å. The N(2)-O(9) bond length is 1.28 Å. In the third N site, N(3) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(6) atom. The N(3)-O(1) bond length is 1.26 Å. The N(3)-O(2) bond length is 1.28 Å. The N(3)-O(6) bond length is 1.26 Å. There are nine inequivalent O sites. In the first O site, O(9) is bonded in a 4-coordinate geometry to one Rb(3), two equivalent Rb(1), and one N(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Rb(3) and one N(3) atom. In the third O site, O(2) is bonded in a 4-coordinate geometry to one Rb(2), two equivalent Rb(3), and one N(3) atom. In the fourth O site, O(3) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(3), and one N(1) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(3), and one N(2) atom. In the sixth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(1), one Rb(2), and one N(1) atom. In the seventh O site, O(6) is bonded in a distorted single-bond geometry to one Rb(1), one Rb(3), and one N(3) atom. In the eighth O site, O(7) is bonded in a distorted single-bond geometry to one Rb(2) and one N(2) atom. In the ninth O site, O(8) is bonded in a distorted trigonal planar geometry to two equivalent Rb(2) and one N(1) atom.