data_[Na3Ag2Sn7]
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/m]
_cell_length_a [4.7585]
_cell_length_b [4.7595]
_cell_length_c [14.1746]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.3944]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na3Ag2Sn7]
_chemical_formula_sum '[Na3 Ag2 Sn7]'
_cell_volume [316.7169]
_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  2  0.2077  0.5000  0.4125  1
  Na  Na1  1  0.5000  0.5000  0.0000  1
  Ag  Ag2  2  0.4435  0.0000  0.8802  1
  Sn  Sn3  2  0.1142  0.0000  0.2401  1
  Sn  Sn4  2  0.2861  0.0000  0.5782  1
  Sn  Sn5  2  0.3712  0.5000  0.7436  1
  Sn  Sn6  1  0.0000  0.0000  0.0000  1
]