RbDyS2O9 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. Dy(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(2), one O(6), one O(7), and one O(8) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(4), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Rb(1) and one Dy(1) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one Rb(1), one Dy(1), and one S(1) atom. In the third O site, O(7) is bonded in a distorted single-bond geometry to one Rb(1), one Dy(1), and one S(1) atom. In the fourth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(1), one Dy(1), and one S(1) atom. In the fifth O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one S(2) atom. In the sixth O site, O(9) is bonded in a 3-coordinate geometry to one Rb(1), one Dy(1), and one S(2) atom. In the seventh O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1), one Dy(1), and one S(1) atom. In the eighth O site, O(3) is bonded in a 2-coordinate geometry to one Rb(1), one Dy(1), and one S(2) atom. In the ninth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Dy(1), and one S(2) atom.
RbDyS2O9 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. The Rb(1)-O(1) bond length is 3.11 Å. The Rb(1)-O(2) bond length is 3.14 Å. The Rb(1)-O(3) bond length is 3.25 Å. The Rb(1)-O(4) bond length is 2.98 Å. The Rb(1)-O(5) bond length is 3.23 Å. The Rb(1)-O(6) bond length is 3.03 Å. The Rb(1)-O(7) bond length is 3.05 Å. The Rb(1)-O(8) bond length is 3.06 Å. The Rb(1)-O(9) bond length is 3.05 Å. Dy(1) is bonded in a 8-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. The Dy(1)-O(2) bond length is 2.46 Å. The Dy(1)-O(3) bond length is 2.34 Å. The Dy(1)-O(4) bond length is 2.34 Å. The Dy(1)-O(5) bond length is 2.32 Å. The Dy(1)-O(6) bond length is 2.40 Å. The Dy(1)-O(7) bond length is 2.44 Å. The Dy(1)-O(8) bond length is 2.33 Å. The Dy(1)-O(9) bond length is 2.33 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(2), one O(6), one O(7), and one O(8) atom. The S(1)-O(2) bond length is 1.48 Å. The S(1)-O(6) bond length is 1.51 Å. The S(1)-O(7) bond length is 1.49 Å. The S(1)-O(8) bond length is 1.49 Å. In the second S site, S(2) is bonded in a tetrahedral geometry to one O(1), one O(3), one O(4), and one O(9) atom. The S(2)-O(1) bond length is 1.48 Å. The S(2)-O(3) bond length is 1.50 Å. The S(2)-O(4) bond length is 1.49 Å. The S(2)-O(9) bond length is 1.48 Å. There are nine inequivalent O sites. In the first O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Rb(1) and one Dy(1) atom. In the second O site, O(6) is bonded in a 3-coordinate geometry to one Rb(1), one Dy(1), and one S(1) atom. In the third O site, O(7) is bonded in a distorted single-bond geometry to one Rb(1), one Dy(1), and one S(1) atom. In the fourth O site, O(8) is bonded in a 2-coordinate geometry to one Rb(1), one Dy(1), and one S(1) atom. In the fifth O site, O(1) is bonded in a single-bond geometry to one Rb(1) and one S(2) atom. In the sixth O site, O(9) is bonded in a 3-coordinate geometry to one Rb(1), one Dy(1), and one S(2) atom. In the seventh O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1), one Dy(1), and one S(1) atom. In the eighth O site, O(3) is bonded in a 2-coordinate geometry to one Rb(1), one Dy(1), and one S(2) atom. In the ninth O site, O(4) is bonded in a 3-coordinate geometry to one Rb(1), one Dy(1), and one S(2) atom.