The material described by (Rb6O)2Rb4O crystallizes in the orthorhombic F222 space group. The structure consists of eight Rb4O clusters inside a Rb6O framework. In each Rb4O cluster, there are two inequivalent Rb sites. In the first Rb site, Rb(7) is bonded in a single-bond geometry to one O(3) atom. In the second Rb site, Rb(8) is bonded in a single-bond geometry to one O(3) atom. O(3) is bonded in a rectangular see-saw-like geometry to two equivalent Rb(7) and two equivalent Rb(8) atoms. In the Rb6O framework, there are nine inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted square co-planar geometry to four equivalent Rb(5) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to four equivalent Rb(4) and four equivalent Rb(6) atoms. In the third Rb site, Rb(3) is bonded in a single-bond geometry to one O(1) atom. In the fourth Rb site, Rb(4) is bonded in a single-bond geometry to one Rb(2) and one O(1) atom. In the fifth Rb site, Rb(5) is bonded in a single-bond geometry to one Rb(1) and one O(2) atom. In the sixth Rb site, Rb(6) is bonded in a single-bond geometry to one Rb(2) and one O(2) atom. In the seventh Rb site, Rb(9) is bonded in a single-bond geometry to one O(1) atom. In the eighth Rb site, Rb(10) is bonded in a single-bond geometry to one O(1) atom. In the ninth Rb site, Rb(11) is bonded in a single-bond geometry to one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in an octahedral geometry to one Rb(10), one Rb(9), two equivalent Rb(3), and two equivalent Rb(4) atoms. In the second O site, O(2) is bonded in a trigonal bipyramidal geometry to one Rb(11), two equivalent Rb(5), and two equivalent Rb(6) atoms. is represented by the CIF file [CIF]
data_Rb16O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   16.459
_cell_length_b   15.439
_cell_length_c   15.031
_cell_angle_alpha   65.376
_cell_angle_beta   58.505
_cell_angle_gamma   56.118
_symmetry_Int_Tables_number   1
_cell_volume   2661.108
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Rb  Rb0  1  0.500  0.500  0.500  1.0
  Rb  Rb1  1  0.000  0.000  0.000  1.0
  Rb  Rb2  1  0.813  0.566  0.180  1.0
  Rb  Rb3  1  0.180  0.441  0.813  1.0
  Rb  Rb4  1  0.566  0.813  0.441  1.0
  Rb  Rb5  1  0.441  0.180  0.566  1.0
  Rb  Rb6  1  0.327  0.958  0.677  1.0
  Rb  Rb7  1  0.677  0.039  0.327  1.0
  Rb  Rb8  1  0.958  0.327  0.039  1.0
  Rb  Rb9  1  0.039  0.677  0.958  1.0
  Rb  Rb10  1  0.163  0.821  0.550  1.0
  Rb  Rb11  1  0.821  0.163  0.467  1.0
  Rb  Rb12  1  0.467  0.550  0.821  1.0
  Rb  Rb13  1  0.550  0.467  0.163  1.0
  Rb  Rb14  1  0.688  0.341  0.929  1.0
  Rb  Rb15  1  0.341  0.688  0.043  1.0
  Rb  Rb16  1  0.043  0.929  0.341  1.0
  Rb  Rb17  1  0.929  0.043  0.688  1.0
  Rb  Rb18  1  0.535  0.155  0.847  1.0
  Rb  Rb19  1  0.462  0.847  0.155  1.0
  Rb  Rb20  1  0.847  0.462  0.535  1.0
  Rb  Rb21  1  0.155  0.535  0.462  1.0
  Rb  Rb22  1  0.962  0.651  0.338  1.0
  Rb  Rb23  1  0.048  0.338  0.651  1.0
  Rb  Rb24  1  0.338  0.048  0.962  1.0
  Rb  Rb25  1  0.651  0.962  0.048  1.0
  Rb  Rb26  1  0.115  0.385  0.115  1.0
  Rb  Rb27  1  0.385  0.115  0.385  1.0
  Rb  Rb28  1  0.631  0.869  0.631  1.0
  Rb  Rb29  1  0.869  0.631  0.869  1.0
  Rb  Rb30  1  0.120  0.120  0.380  1.0
  Rb  Rb31  1  0.380  0.380  0.120  1.0
  O  O32  1  0.993  0.507  0.993  1.0
  O  O33  1  0.507  0.993  0.507  1.0
  O  O34  1  0.010  0.010  0.490  1.0
  O  O35  1  0.490  0.490  0.010  1.0
  O  O36  1  0.501  0.999  0.999  1.0
  O  O37  1  0.999  0.501  0.501  1.0
[/CIF]
.
The material described by (Rb6O)2Rb4O crystallizes in the orthorhombic F222 space group. The structure consists of eight Rb4O clusters inside a Rb6O framework. In each Rb4O cluster, there are two inequivalent Rb sites. In the first Rb site, Rb(7) is bonded in a single-bond geometry to one O(3) atom. In the second Rb site, Rb(8) is bonded in a single-bond geometry to one O(3) atom. O(3) is bonded in a rectangular see-saw-like geometry to two equivalent Rb(7) and two equivalent Rb(8) atoms. In the Rb6O framework, there are nine inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted square co-planar geometry to four equivalent Rb(5) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to four equivalent Rb(4) and four equivalent Rb(6) atoms. In the third Rb site, Rb(3) is bonded in a single-bond geometry to one O(1) atom. In the fourth Rb site, Rb(4) is bonded in a single-bond geometry to one Rb(2) and one O(1) atom. In the fifth Rb site, Rb(5) is bonded in a single-bond geometry to one Rb(1) and one O(2) atom. In the sixth Rb site, Rb(6) is bonded in a single-bond geometry to one Rb(2) and one O(2) atom. In the seventh Rb site, Rb(9) is bonded in a single-bond geometry to one O(1) atom. In the eighth Rb site, Rb(10) is bonded in a single-bond geometry to one O(1) atom. In the ninth Rb site, Rb(11) is bonded in a single-bond geometry to one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in an octahedral geometry to one Rb(10), one Rb(9), two equivalent Rb(3), and two equivalent Rb(4) atoms. In the second O site, O(2) is bonded in a trigonal bipyramidal geometry to one Rb(11), two equivalent Rb(5), and two equivalent Rb(6) atoms. is represented by the CIF file [CIF]
data_Rb16O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   16.459
_cell_length_b   15.439
_cell_length_c   15.031
_cell_angle_alpha   65.376
_cell_angle_beta   58.505
_cell_angle_gamma   56.118
_symmetry_Int_Tables_number   1
_cell_volume   2661.108
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Rb  Rb0  1  0.500  0.500  0.500  1.0
  Rb  Rb1  1  0.000  0.000  0.000  1.0
  Rb  Rb2  1  0.813  0.566  0.180  1.0
  Rb  Rb3  1  0.180  0.441  0.813  1.0
  Rb  Rb4  1  0.566  0.813  0.441  1.0
  Rb  Rb5  1  0.441  0.180  0.566  1.0
  Rb  Rb6  1  0.327  0.958  0.677  1.0
  Rb  Rb7  1  0.677  0.039  0.327  1.0
  Rb  Rb8  1  0.958  0.327  0.039  1.0
  Rb  Rb9  1  0.039  0.677  0.958  1.0
  Rb  Rb10  1  0.163  0.821  0.550  1.0
  Rb  Rb11  1  0.821  0.163  0.467  1.0
  Rb  Rb12  1  0.467  0.550  0.821  1.0
  Rb  Rb13  1  0.550  0.467  0.163  1.0
  Rb  Rb14  1  0.688  0.341  0.929  1.0
  Rb  Rb15  1  0.341  0.688  0.043  1.0
  Rb  Rb16  1  0.043  0.929  0.341  1.0
  Rb  Rb17  1  0.929  0.043  0.688  1.0
  Rb  Rb18  1  0.535  0.155  0.847  1.0
  Rb  Rb19  1  0.462  0.847  0.155  1.0
  Rb  Rb20  1  0.847  0.462  0.535  1.0
  Rb  Rb21  1  0.155  0.535  0.462  1.0
  Rb  Rb22  1  0.962  0.651  0.338  1.0
  Rb  Rb23  1  0.048  0.338  0.651  1.0
  Rb  Rb24  1  0.338  0.048  0.962  1.0
  Rb  Rb25  1  0.651  0.962  0.048  1.0
  Rb  Rb26  1  0.115  0.385  0.115  1.0
  Rb  Rb27  1  0.385  0.115  0.385  1.0
  Rb  Rb28  1  0.631  0.869  0.631  1.0
  Rb  Rb29  1  0.869  0.631  0.869  1.0
  Rb  Rb30  1  0.120  0.120  0.380  1.0
  Rb  Rb31  1  0.380  0.380  0.120  1.0
  O  O32  1  0.993  0.507  0.993  1.0
  O  O33  1  0.507  0.993  0.507  1.0
  O  O34  1  0.010  0.010  0.490  1.0
  O  O35  1  0.490  0.490  0.010  1.0
  O  O36  1  0.501  0.999  0.999  1.0
  O  O37  1  0.999  0.501  0.501  1.0
[/CIF]
.