data_[Na8Ag8Sn4]
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 [C2/m]
_cell_length_a [10.4052]
_cell_length_b [5.0069]
_cell_length_c [8.9817]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.7628]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Na2Ag2Sn]
_chemical_formula_sum '[Na8 Ag8 Sn4]'
_cell_volume [461.1550]
_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  0.0573  0.5000  0.3561  1.0
  Na  Na1  4  0.1655  0.5000  0.0434  1.0
  Ag  Ag2  4  0.0197  0.0000  0.8498  1.0
  Ag  Ag3  4  0.1391  0.0000  0.5840  1.0
  Sn  Sn4  4  0.2453  0.0000  0.2976  1.0
]