The structure described by Na crystallizes in the cubic F-43m space group. The structure consists of four 7440-23-5 atoms inside a Na framework. In the Na framework, there are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a tetrahedral geometry to four equivalent Na(3) atoms. In the second Na site, Na(3) is bonded in a 4-coordinate geometry to one Na(1) and three equivalent Na(3) atoms. is represented by the CIF card [CIF]
data_Na
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.431
_cell_length_b   8.431
_cell_length_c   8.431
_cell_angle_alpha   90.000
_cell_angle_beta   60.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   423.706
_cell_formula_units_Z   6
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  0.500  0.250  0.250  1.0
  Na  Na1  1  0.500  0.750  0.750  1.0
  Na  Na2  1  0.796  0.398  0.805  1.0
  Na  Na3  1  0.204  0.398  0.398  1.0
  Na  Na4  1  0.204  0.805  0.398  1.0
  Na  Na5  1  0.796  0.398  0.398  1.0
[/CIF]
.
The structure described by Na crystallizes in the cubic F-43m space group. The structure consists of four 7440-23-5 atoms inside a Na framework. In the Na framework, there are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a tetrahedral geometry to four equivalent Na(3) atoms. In the second Na site, Na(3) is bonded in a 4-coordinate geometry to one Na(1) and three equivalent Na(3) atoms. is represented by the CIF card [CIF]
data_Na
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.431
_cell_length_b   8.431
_cell_length_c   8.431
_cell_angle_alpha   90.000
_cell_angle_beta   60.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   423.706
_cell_formula_units_Z   6
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  0.500  0.250  0.250  1.0
  Na  Na1  1  0.500  0.750  0.750  1.0
  Na  Na2  1  0.796  0.398  0.805  1.0
  Na  Na3  1  0.204  0.398  0.398  1.0
  Na  Na4  1  0.204  0.805  0.398  1.0
  Na  Na5  1  0.796  0.398  0.398  1.0
[/CIF]
.