The material structure described by Rb3CoO2 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in an L-shaped geometry to one O(1) and one O(2) atom. In the second Rb site, Rb(2) is bonded in a distorted see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. Co(1) is bonded in a linear geometry to one O(1) and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Rb(1), four equivalent Rb(2), and one Co(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Rb(1), four equivalent Rb(2), and one Co(1) atom. is represented by the CIF card [CIF]
data_Rb3CoO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.184
_cell_length_b   7.670
_cell_length_c   12.319
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   584.214
_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  0.781  0.750  0.899  1.0
  Rb  Rb1  1  0.281  0.250  0.601  1.0
  Rb  Rb2  1  0.219  0.250  0.101  1.0
  Rb  Rb3  1  0.719  0.750  0.399  1.0
  Rb  Rb4  1  0.318  0.501  0.862  1.0
  Rb  Rb5  1  0.818  0.499  0.638  1.0
  Rb  Rb6  1  0.682  0.001  0.138  1.0
  Rb  Rb7  1  0.182  0.999  0.362  1.0
  Rb  Rb8  1  0.682  0.499  0.138  1.0
  Rb  Rb9  1  0.182  0.501  0.362  1.0
  Rb  Rb10  1  0.318  0.999  0.862  1.0
  Rb  Rb11  1  0.818  0.001  0.638  1.0
  Co  Co12  1  0.306  0.750  0.619  1.0
  Co  Co13  1  0.194  0.750  0.119  1.0
  Co  Co14  1  0.806  0.250  0.881  1.0
  Co  Co15  1  0.694  0.250  0.381  1.0
  O  O16  1  0.587  0.250  0.971  1.0
  O  O17  1  0.087  0.750  0.529  1.0
  O  O18  1  0.413  0.750  0.029  1.0
  O  O19  1  0.913  0.250  0.471  1.0
  O  O20  1  0.016  0.250  0.786  1.0
  O  O21  1  0.484  0.250  0.286  1.0
  O  O22  1  0.516  0.750  0.714  1.0
  O  O23  1  0.984  0.750  0.214  1.0
[/CIF]
.
The material structure described by Rb3CoO2 crystallizes in the orthorhombic Pnma space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in an L-shaped geometry to one O(1) and one O(2) atom. In the second Rb site, Rb(2) is bonded in a distorted see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. Co(1) is bonded in a linear geometry to one O(1) and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Rb(1), four equivalent Rb(2), and one Co(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Rb(1), four equivalent Rb(2), and one Co(1) atom. is represented by the CIF card [CIF]
data_Rb3CoO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.184
_cell_length_b   7.670
_cell_length_c   12.319
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   584.214
_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  0.781  0.750  0.899  1.0
  Rb  Rb1  1  0.281  0.250  0.601  1.0
  Rb  Rb2  1  0.219  0.250  0.101  1.0
  Rb  Rb3  1  0.719  0.750  0.399  1.0
  Rb  Rb4  1  0.318  0.501  0.862  1.0
  Rb  Rb5  1  0.818  0.499  0.638  1.0
  Rb  Rb6  1  0.682  0.001  0.138  1.0
  Rb  Rb7  1  0.182  0.999  0.362  1.0
  Rb  Rb8  1  0.682  0.499  0.138  1.0
  Rb  Rb9  1  0.182  0.501  0.362  1.0
  Rb  Rb10  1  0.318  0.999  0.862  1.0
  Rb  Rb11  1  0.818  0.001  0.638  1.0
  Co  Co12  1  0.306  0.750  0.619  1.0
  Co  Co13  1  0.194  0.750  0.119  1.0
  Co  Co14  1  0.806  0.250  0.881  1.0
  Co  Co15  1  0.694  0.250  0.381  1.0
  O  O16  1  0.587  0.250  0.971  1.0
  O  O17  1  0.087  0.750  0.529  1.0
  O  O18  1  0.413  0.750  0.029  1.0
  O  O19  1  0.913  0.250  0.471  1.0
  O  O20  1  0.016  0.250  0.786  1.0
  O  O21  1  0.484  0.250  0.286  1.0
  O  O22  1  0.516  0.750  0.714  1.0
  O  O23  1  0.984  0.750  0.214  1.0
[/CIF]
.