The material described by Rb2SnO2 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. In the second Rb site, Rb(2) is bonded in a distorted see-saw-like geometry to one O(1) and three equivalent O(2) atoms. Sn(1) is bonded in a 3-coordinate geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), and two equivalent Sn(1) atoms. In the second O site, O(2) is bonded to two equivalent Rb(1), three equivalent Rb(2), and one Sn(1) atom to form a mixture of distorted corner and edge-sharing ORb5Sn octahedra. The corner-sharing octahedral tilt angles range from 8-11°. is represented by the CIF card [CIF]
data_Rb2SnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.777
_cell_length_b   7.512
_cell_length_c   11.253
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   488.390
_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  0.008  0.646  0.739  1.0
  Rb  Rb1  1  0.492  0.354  0.239  1.0
  Rb  Rb2  1  0.994  0.606  0.417  1.0
  Rb  Rb3  1  0.506  0.394  0.917  1.0
  Rb  Rb4  1  0.006  0.106  0.083  1.0
  Rb  Rb5  1  0.494  0.894  0.583  1.0
  Rb  Rb6  1  0.508  0.854  0.261  1.0
  Rb  Rb7  1  0.992  0.146  0.761  1.0
  Sn  Sn8  1  0.502  0.889  0.941  1.0
  Sn  Sn9  1  0.498  0.389  0.559  1.0
  Sn  Sn10  1  0.998  0.111  0.441  1.0
  Sn  Sn11  1  0.002  0.611  0.059  1.0
  O  O12  1  0.344  0.697  0.047  1.0
  O  O13  1  0.487  0.584  0.437  1.0
  O  O14  1  0.987  0.916  0.563  1.0
  O  O15  1  0.156  0.303  0.547  1.0
  O  O16  1  0.513  0.084  0.063  1.0
  O  O17  1  0.656  0.197  0.453  1.0
  O  O18  1  0.844  0.803  0.953  1.0
  O  O19  1  0.013  0.416  0.937  1.0
[/CIF]
.
The material described by Rb2SnO2 crystallizes in the orthorhombic P2_12_12_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 3-coordinate geometry to one O(1) and two equivalent O(2) atoms. In the second Rb site, Rb(2) is bonded in a distorted see-saw-like geometry to one O(1) and three equivalent O(2) atoms. Sn(1) is bonded in a 3-coordinate geometry to one O(2) and two equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(2), and two equivalent Sn(1) atoms. In the second O site, O(2) is bonded to two equivalent Rb(1), three equivalent Rb(2), and one Sn(1) atom to form a mixture of distorted corner and edge-sharing ORb5Sn octahedra. The corner-sharing octahedral tilt angles range from 8-11°. is represented by the CIF card [CIF]
data_Rb2SnO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.777
_cell_length_b   7.512
_cell_length_c   11.253
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   488.390
_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  0.008  0.646  0.739  1.0
  Rb  Rb1  1  0.492  0.354  0.239  1.0
  Rb  Rb2  1  0.994  0.606  0.417  1.0
  Rb  Rb3  1  0.506  0.394  0.917  1.0
  Rb  Rb4  1  0.006  0.106  0.083  1.0
  Rb  Rb5  1  0.494  0.894  0.583  1.0
  Rb  Rb6  1  0.508  0.854  0.261  1.0
  Rb  Rb7  1  0.992  0.146  0.761  1.0
  Sn  Sn8  1  0.502  0.889  0.941  1.0
  Sn  Sn9  1  0.498  0.389  0.559  1.0
  Sn  Sn10  1  0.998  0.111  0.441  1.0
  Sn  Sn11  1  0.002  0.611  0.059  1.0
  O  O12  1  0.344  0.697  0.047  1.0
  O  O13  1  0.487  0.584  0.437  1.0
  O  O14  1  0.987  0.916  0.563  1.0
  O  O15  1  0.156  0.303  0.547  1.0
  O  O16  1  0.513  0.084  0.063  1.0
  O  O17  1  0.656  0.197  0.453  1.0
  O  O18  1  0.844  0.803  0.953  1.0
  O  O19  1  0.013  0.416  0.937  1.0
[/CIF]
.