The material structure described by Rb2O is Baddeleyite-like structured and crystallizes in the orthorhombic Pbca space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to four equivalent O(1) atoms to form a mixture of corner and edge-sharing RbO4 tetrahedra. In the second Rb site, Rb(2) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. O(1) is bonded to three equivalent Rb(2) and four equivalent Rb(1) atoms to form a mixture of distorted corner and edge-sharing ORb7 pentagonal bipyramids. is represented by the CIF file [CIF]
data_Rb2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.419
_cell_length_b   6.937
_cell_length_c   6.741
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   627.514
_cell_formula_units_Z   8
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  0.022  0.739  0.001  1.0
  Rb  Rb1  1  0.022  0.761  0.501  1.0
  Rb  Rb2  1  0.203  0.116  0.148  1.0
  Rb  Rb3  1  0.203  0.384  0.648  1.0
  Rb  Rb4  1  0.297  0.884  0.648  1.0
  Rb  Rb5  1  0.297  0.616  0.148  1.0
  Rb  Rb6  1  0.478  0.239  0.001  1.0
  Rb  Rb7  1  0.478  0.261  0.501  1.0
  Rb  Rb8  1  0.522  0.739  0.499  1.0
  Rb  Rb9  1  0.522  0.761  0.999  1.0
  Rb  Rb10  1  0.703  0.116  0.352  1.0
  Rb  Rb11  1  0.703  0.384  0.852  1.0
  Rb  Rb12  1  0.797  0.616  0.352  1.0
  Rb  Rb13  1  0.797  0.884  0.852  1.0
  Rb  Rb14  1  0.978  0.239  0.499  1.0
  Rb  Rb15  1  0.978  0.261  0.999  1.0
  O  O16  1  0.115  0.034  0.767  1.0
  O  O17  1  0.115  0.466  0.267  1.0
  O  O18  1  0.385  0.966  0.267  1.0
  O  O19  1  0.385  0.534  0.767  1.0
  O  O20  1  0.615  0.034  0.733  1.0
  O  O21  1  0.615  0.466  0.233  1.0
  O  O22  1  0.885  0.534  0.733  1.0
  O  O23  1  0.885  0.966  0.233  1.0
[/CIF]
.
The material structure described by Rb2O is Baddeleyite-like structured and crystallizes in the orthorhombic Pbca space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to four equivalent O(1) atoms to form a mixture of corner and edge-sharing RbO4 tetrahedra. In the second Rb site, Rb(2) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. O(1) is bonded to three equivalent Rb(2) and four equivalent Rb(1) atoms to form a mixture of distorted corner and edge-sharing ORb7 pentagonal bipyramids. is represented by the CIF file [CIF]
data_Rb2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.419
_cell_length_b   6.937
_cell_length_c   6.741
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   627.514
_cell_formula_units_Z   8
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  0.022  0.739  0.001  1.0
  Rb  Rb1  1  0.022  0.761  0.501  1.0
  Rb  Rb2  1  0.203  0.116  0.148  1.0
  Rb  Rb3  1  0.203  0.384  0.648  1.0
  Rb  Rb4  1  0.297  0.884  0.648  1.0
  Rb  Rb5  1  0.297  0.616  0.148  1.0
  Rb  Rb6  1  0.478  0.239  0.001  1.0
  Rb  Rb7  1  0.478  0.261  0.501  1.0
  Rb  Rb8  1  0.522  0.739  0.499  1.0
  Rb  Rb9  1  0.522  0.761  0.999  1.0
  Rb  Rb10  1  0.703  0.116  0.352  1.0
  Rb  Rb11  1  0.703  0.384  0.852  1.0
  Rb  Rb12  1  0.797  0.616  0.352  1.0
  Rb  Rb13  1  0.797  0.884  0.852  1.0
  Rb  Rb14  1  0.978  0.239  0.499  1.0
  Rb  Rb15  1  0.978  0.261  0.999  1.0
  O  O16  1  0.115  0.034  0.767  1.0
  O  O17  1  0.115  0.466  0.267  1.0
  O  O18  1  0.385  0.966  0.267  1.0
  O  O19  1  0.385  0.534  0.767  1.0
  O  O20  1  0.615  0.034  0.733  1.0
  O  O21  1  0.615  0.466  0.233  1.0
  O  O22  1  0.885  0.534  0.733  1.0
  O  O23  1  0.885  0.966  0.233  1.0
[/CIF]
.