data_[Na6W6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  W  2.3600  1.3500  0.7667
]
_symmetry_space_group_name_H-M [P6_3/m]
_cell_length_a [10.2501]
_cell_length_b [10.2501]
_cell_length_c [2.6331]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [176]
_chemical_formula_structural [NaW]
_chemical_formula_sum '[Na6 W6]'
_cell_volume [239.5822]
_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  6  0.0600  0.2885  0.7500  1
  W  W1  6  0.1603  0.6051  0.7500  1
]