data_[Na4Li40Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Li  0.9800  1.4500  0.9000
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Fmmm]
_cell_length_a [5.5628]
_cell_length_b [13.8237]
_cell_length_c [13.8994]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [69]
_chemical_formula_structural [Na(Li5Ag)2]
_chemical_formula_sum '[Na4 Li40 Ag8]'
_cell_volume [1068.8398]
_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  0.0000  0.0000  0.0000  1.0
  Li  Li1  16  0.0000  0.1121  0.3956  1.0
  Li  Li2  16  0.0000  0.1819  0.1688  1.0
  Li  Li3  8  0.2500  0.0000  0.2500  1.0
  Ag  Ag4  8  0.2500  0.2500  0.0000  1.0
]