The compound described by NaMgCoO2 crystallizes in the monoclinic Cm space group. Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. Mg(1) is bonded to one O(2) and three equivalent O(1) atoms to form distorted corner-sharing MgO4 tetrahedra. Co(1) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to three equivalent Na(1) and three equivalent Mg(1) atoms. In the second O site, O(2) is bonded in a 7-coordinate geometry to three equivalent Na(1), one Mg(1), and three equivalent Co(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaMgCoO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.085
_cell_length_b   7.149
_cell_length_c   7.085
_cell_angle_alpha   27.143
_cell_angle_beta   27.130
_cell_angle_gamma   27.143
_symmetry_Int_Tables_number   1
_cell_volume   65.873
_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  0.014  0.034  0.014  1.0
  Mg  Mg1  1  0.897  0.881  0.897  1.0
  Co  Co2  1  0.458  0.456  0.458  1.0
  O  O3  1  0.269  0.249  0.269  1.0
  O  O4  1  0.779  0.785  0.779  1.0
[/CIF]
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The compound described by NaMgCoO2 crystallizes in the monoclinic Cm space group. Na(1) is bonded in a 6-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. Mg(1) is bonded to one O(2) and three equivalent O(1) atoms to form distorted corner-sharing MgO4 tetrahedra. Co(1) is bonded in a trigonal planar geometry to three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to three equivalent Na(1) and three equivalent Mg(1) atoms. In the second O site, O(2) is bonded in a 7-coordinate geometry to three equivalent Na(1), one Mg(1), and three equivalent Co(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_NaMgCoO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.085
_cell_length_b   7.149
_cell_length_c   7.085
_cell_angle_alpha   27.143
_cell_angle_beta   27.130
_cell_angle_gamma   27.143
_symmetry_Int_Tables_number   1
_cell_volume   65.873
_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  0.014  0.034  0.014  1.0
  Mg  Mg1  1  0.897  0.881  0.897  1.0
  Co  Co2  1  0.458  0.456  0.458  1.0
  O  O3  1  0.269  0.249  0.269  1.0
  O  O4  1  0.779  0.785  0.779  1.0
[/CIF]
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