data_[Na2Ag2Cl8]
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
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [P2_1/c]
_cell_length_a [6.7400]
_cell_length_b [4.2910]
_cell_length_c [13.1841]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.9855]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [NaAgCl4]
_chemical_formula_sum '[Na2 Ag2 Cl8]'
_cell_volume [330.2647]
_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  0.5000  0.0000  0.5000  1.0
  Ag  Ag1  2  0.0000  0.0000  0.0000  1.0
  Cl  Cl2  4  0.0229  0.1677  0.3643  1.0
  Cl  Cl3  4  0.4011  0.5079  0.6118  1.0
]