data_[Na4Pt8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Pt  2.2800  1.3500  0.8050
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [5.6852]
_cell_length_b [3.9929]
_cell_length_c [8.6418]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [NaPt2]
_chemical_formula_sum '[Na4 Pt8]'
_cell_volume [196.1757]
_cell_formula_units_Z [4]
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  4  0.0905  0.2500  0.9255  1
  Pt  Pt1  4  0.0827  0.2500  0.5943  1
  Pt  Pt2  4  0.1728  0.2500  0.2585  1
]