The compound described by (Na2Co3O5)2O2 crystallizes in the orthorhombic Amm2 space group. The structure consists of two hydrogen peroxide molecules inside a Na2Co3O5 framework. In the Na2Co3O5 framework, there are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(4) atom. In the second Co site, Co(2) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(3), one Co(1), and one Co(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(3), one Co(1), and one Co(2) atom. In the third O site, O(4) is bonded in a distorted bent 120 degrees geometry to two equivalent Na(3) and two equivalent Co(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2(CoO2)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.848
_cell_length_b   6.848
_cell_length_c   8.111
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   102.028
_symmetry_Int_Tables_number   1
_cell_volume   371.996
_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
  Na  Na0  1  0.502  0.498  0.000  1.0
  Na  Na1  1  0.901  0.099  0.500  1.0
  Na  Na2  1  0.012  0.549  0.000  1.0
  Na  Na3  1  0.451  0.988  0.000  1.0
  Co  Co4  1  0.828  0.820  0.788  1.0
  Co  Co5  1  0.718  0.282  0.230  1.0
  Co  Co6  1  0.718  0.282  0.770  1.0
  Co  Co7  1  0.180  0.172  0.788  1.0
  Co  Co8  1  0.180  0.172  0.212  1.0
  Co  Co9  1  0.828  0.820  0.212  1.0
  O  O10  1  0.683  0.007  0.250  1.0
  O  O11  1  0.445  0.249  0.193  1.0
  O  O12  1  0.340  0.660  0.576  1.0
  O  O13  1  0.340  0.660  0.424  1.0
  O  O14  1  0.097  0.903  0.809  1.0
  O  O15  1  0.097  0.903  0.191  1.0
  O  O16  1  0.993  0.317  0.750  1.0
  O  O17  1  0.993  0.317  0.250  1.0
  O  O18  1  0.751  0.555  0.807  1.0
  O  O19  1  0.751  0.555  0.193  1.0
  O  O20  1  0.683  0.007  0.750  1.0
  O  O21  1  0.445  0.249  0.807  1.0
[/CIF]
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The compound described by (Na2Co3O5)2O2 crystallizes in the orthorhombic Amm2 space group. The structure consists of two hydrogen peroxide molecules inside a Na2Co3O5 framework. In the Na2Co3O5 framework, there are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to four equivalent O(1) atoms. In the third Na site, Na(3) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(4) atom. In the second Co site, Co(2) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Na(2), one Na(3), one Co(1), and one Co(2) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Na(1), one Na(3), one Co(1), and one Co(2) atom. In the third O site, O(4) is bonded in a distorted bent 120 degrees geometry to two equivalent Na(3) and two equivalent Co(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Na2(CoO2)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.848
_cell_length_b   6.848
_cell_length_c   8.111
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   102.028
_symmetry_Int_Tables_number   1
_cell_volume   371.996
_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
  Na  Na0  1  0.502  0.498  0.000  1.0
  Na  Na1  1  0.901  0.099  0.500  1.0
  Na  Na2  1  0.012  0.549  0.000  1.0
  Na  Na3  1  0.451  0.988  0.000  1.0
  Co  Co4  1  0.828  0.820  0.788  1.0
  Co  Co5  1  0.718  0.282  0.230  1.0
  Co  Co6  1  0.718  0.282  0.770  1.0
  Co  Co7  1  0.180  0.172  0.788  1.0
  Co  Co8  1  0.180  0.172  0.212  1.0
  Co  Co9  1  0.828  0.820  0.212  1.0
  O  O10  1  0.683  0.007  0.250  1.0
  O  O11  1  0.445  0.249  0.193  1.0
  O  O12  1  0.340  0.660  0.576  1.0
  O  O13  1  0.340  0.660  0.424  1.0
  O  O14  1  0.097  0.903  0.809  1.0
  O  O15  1  0.097  0.903  0.191  1.0
  O  O16  1  0.993  0.317  0.750  1.0
  O  O17  1  0.993  0.317  0.250  1.0
  O  O18  1  0.751  0.555  0.807  1.0
  O  O19  1  0.751  0.555  0.193  1.0
  O  O20  1  0.683  0.007  0.750  1.0
  O  O21  1  0.445  0.249  0.807  1.0
[/CIF]
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