The crystal structure described by Rb2CoO3 crystallizes in the orthorhombic Cmc2_1 space group. Rb(1) is bonded in a 7-coordinate geometry to three equivalent O(2) and four equivalent O(1) atoms. Co(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted edge-sharing CoO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to four equivalent Rb(1) and two equivalent Co(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to six equivalent Rb(1) and one Co(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2CoO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.376
_cell_length_b   6.376
_cell_length_c   5.402
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   109.239
_symmetry_Int_Tables_number   1
_cell_volume   207.342
_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  0.816  0.495  0.250  1.0
  Rb  Rb1  1  0.505  0.184  0.750  1.0
  Rb  Rb2  1  0.495  0.816  0.250  1.0
  Rb  Rb3  1  0.184  0.505  0.750  1.0
  Co  Co4  1  0.927  0.927  0.763  1.0
  Co  Co5  1  0.073  0.073  0.263  1.0
  O  O6  1  0.890  0.124  0.009  1.0
  O  O7  1  0.876  0.110  0.509  1.0
  O  O8  1  0.683  0.683  0.779  1.0
  O  O9  1  0.317  0.317  0.279  1.0
  O  O10  1  0.124  0.890  0.009  1.0
  O  O11  1  0.110  0.876  0.509  1.0
[/CIF]
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The crystal structure described by Rb2CoO3 crystallizes in the orthorhombic Cmc2_1 space group. Rb(1) is bonded in a 7-coordinate geometry to three equivalent O(2) and four equivalent O(1) atoms. Co(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted edge-sharing CoO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to four equivalent Rb(1) and two equivalent Co(1) atoms. In the second O site, O(2) is bonded in a distorted single-bond geometry to six equivalent Rb(1) and one Co(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Rb2CoO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.376
_cell_length_b   6.376
_cell_length_c   5.402
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   109.239
_symmetry_Int_Tables_number   1
_cell_volume   207.342
_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  0.816  0.495  0.250  1.0
  Rb  Rb1  1  0.505  0.184  0.750  1.0
  Rb  Rb2  1  0.495  0.816  0.250  1.0
  Rb  Rb3  1  0.184  0.505  0.750  1.0
  Co  Co4  1  0.927  0.927  0.763  1.0
  Co  Co5  1  0.073  0.073  0.263  1.0
  O  O6  1  0.890  0.124  0.009  1.0
  O  O7  1  0.876  0.110  0.509  1.0
  O  O8  1  0.683  0.683  0.779  1.0
  O  O9  1  0.317  0.317  0.279  1.0
  O  O10  1  0.124  0.890  0.009  1.0
  O  O11  1  0.110  0.876  0.509  1.0
[/CIF]
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