data_[Na12Ag4Sn2]
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 [P2_1/c]
_cell_length_a [6.1791]
_cell_length_b [10.8500]
_cell_length_c [7.7600]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.8189]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [Na6Ag2Sn]
_chemical_formula_sum '[Na12 Ag4 Sn2]'
_cell_volume [517.5773]
_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  0.0097  0.1507  0.4377  1.0
  Na  Na1  4  0.1955  0.5599  0.6414  1.0
  Na  Na2  4  0.4746  0.2016  0.1493  1.0
  Ag  Ag3  4  0.2838  0.0629  0.7955  1.0
  Sn  Sn4  2  0.5000  0.0000  0.5000  1.0
]