data_[Na1Sr2Ag3Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P-4m2]
_cell_length_a [4.5839]
_cell_length_b [4.5839]
_cell_length_c [13.0149]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [115]
_chemical_formula_structural [NaSr2Ag3Sn4]
_chemical_formula_sum '[Na1 Sr2 Ag3 Sn4]'
_cell_volume [273.4686]
_cell_formula_units_Z [1]
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  1  0.5000  0.5000  0.5000  1.0
  Sr  Sr1  2  0.0000  0.5000  0.7622  1.0
  Ag  Ag2  2  0.0000  0.5000  0.1408  1.0
  Ag  Ag3  1  0.0000  0.0000  0.5000  1.0
  Sn  Sn4  2  0.0000  0.5000  0.3515  1.0
  Sn  Sn5  1  0.0000  0.0000  0.0000  1.0
  Sn  Sn6  1  0.5000  0.5000  0.0000  1.0
]