data_[Na2Ag2Sn4]
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/m]
_cell_length_a [5.8149]
_cell_length_b [4.6955]
_cell_length_c [7.9747]
_cell_angle_alpha [90.0000]
_cell_angle_beta [94.8537]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaAgSn2]
_chemical_formula_sum '[Na2 Ag2 Sn4]'
_cell_volume [216.9594]
_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  2  0.4940  0.7500  0.8242  1.0
  Ag  Ag1  2  0.3634  0.7500  0.4308  1.0
  Sn  Sn2  2  0.0861  0.7500  0.0979  1.0
  Sn  Sn3  2  0.1469  0.2500  0.5870  1.0
]