data_[Na8Ag2Sn2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Pmna]
_cell_length_a [11.0040]
_cell_length_b [5.6896]
_cell_length_c [6.1113]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [53]
_chemical_formula_structural [Na4AgSn]
_chemical_formula_sum '[Na8 Ag2 Sn2]'
_cell_volume [382.6167]
_cell_formula_units_Z [2]
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  0.4822  0.2522  1.0
  Na  Na1  4  0.2500  0.1206  0.7500  1.0
  Ag  Ag2  2  0.0000  0.0000  0.0000  1.0
  Sn  Sn3  2  0.0000  0.0000  0.5000  1.0
]