The material described by NaCoO2 is Caswellsilverite-like structured and crystallizes in the trigonal P-3m1 space group. Na(1) is bonded to six equivalent O(1) atoms to form distorted NaO6 octahedra that share corners with twelve equivalent Co(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and faces with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. Co(1) is bonded to six equivalent O(1) atoms to form CoO6 octahedra that share corners with twelve equivalent Na(1)O6 octahedra, edges with six equivalent Co(1)O6 octahedra, and faces with two equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. O(1) is bonded in a 6-coordinate geometry to three equivalent Na(1) and three equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_NaCoO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.010
_cell_length_b   3.010
_cell_length_c   5.508
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   43.212
_cell_formula_units_Z   1
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  0.000  0.000  0.500  1.0
  Co  Co1  1  0.000  0.000  0.000  1.0
  O  O2  1  0.333  0.667  0.198  1.0
  O  O3  1  0.667  0.333  0.802  1.0
[/CIF]
.
The material described by NaCoO2 is Caswellsilverite-like structured and crystallizes in the trigonal P-3m1 space group. Na(1) is bonded to six equivalent O(1) atoms to form distorted NaO6 octahedra that share corners with twelve equivalent Co(1)O6 octahedra, edges with six equivalent Na(1)O6 octahedra, and faces with two equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. Co(1) is bonded to six equivalent O(1) atoms to form CoO6 octahedra that share corners with twelve equivalent Na(1)O6 octahedra, edges with six equivalent Co(1)O6 octahedra, and faces with two equivalent Na(1)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. O(1) is bonded in a 6-coordinate geometry to three equivalent Na(1) and three equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_NaCoO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.010
_cell_length_b   3.010
_cell_length_c   5.508
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   43.212
_cell_formula_units_Z   1
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  0.000  0.000  0.500  1.0
  Co  Co1  1  0.000  0.000  0.000  1.0
  O  O2  1  0.333  0.667  0.198  1.0
  O  O3  1  0.667  0.333  0.802  1.0
[/CIF]
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