The structure described by Rb2O is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded to four equivalent O(1) atoms to form a mixture of edge and corner-sharing RbO4 tetrahedra. O(1) is bonded in a 7-coordinate geometry to three equivalent Rb(1) and four equivalent Rb(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.140
_cell_length_b   4.622
_cell_length_c   8.693
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   286.849
_cell_formula_units_Z   4
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  0.007  0.250  0.157  1.0
  Rb  Rb1  1  0.137  0.250  0.588  1.0
  Rb  Rb2  1  0.363  0.750  0.088  1.0
  Rb  Rb3  1  0.493  0.750  0.657  1.0
  Rb  Rb4  1  0.507  0.250  0.343  1.0
  Rb  Rb5  1  0.637  0.250  0.912  1.0
  Rb  Rb6  1  0.863  0.750  0.412  1.0
  Rb  Rb7  1  0.993  0.750  0.843  1.0
  O  O8  1  0.258  0.750  0.406  1.0
  O  O9  1  0.242  0.250  0.906  1.0
  O  O10  1  0.758  0.750  0.094  1.0
  O  O11  1  0.742  0.250  0.594  1.0
[/CIF]
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The structure described by Rb2O is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent O(1) atoms. In the second Rb site, Rb(2) is bonded to four equivalent O(1) atoms to form a mixture of edge and corner-sharing RbO4 tetrahedra. O(1) is bonded in a 7-coordinate geometry to three equivalent Rb(1) and four equivalent Rb(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.140
_cell_length_b   4.622
_cell_length_c   8.693
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   286.849
_cell_formula_units_Z   4
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  0.007  0.250  0.157  1.0
  Rb  Rb1  1  0.137  0.250  0.588  1.0
  Rb  Rb2  1  0.363  0.750  0.088  1.0
  Rb  Rb3  1  0.493  0.750  0.657  1.0
  Rb  Rb4  1  0.507  0.250  0.343  1.0
  Rb  Rb5  1  0.637  0.250  0.912  1.0
  Rb  Rb6  1  0.863  0.750  0.412  1.0
  Rb  Rb7  1  0.993  0.750  0.843  1.0
  O  O8  1  0.258  0.750  0.406  1.0
  O  O9  1  0.242  0.250  0.906  1.0
  O  O10  1  0.758  0.750  0.094  1.0
  O  O11  1  0.742  0.250  0.594  1.0
[/CIF]
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