data_[Ag12Cl16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  Cl  3.1600  1.0000  0.7800
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.4923]
_cell_length_b [7.6105]
_cell_length_c [12.3635]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Ag3Cl4]
_chemical_formula_sum '[Ag12 Cl16]'
_cell_volume [704.9684]
_cell_formula_units_Z [4]
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
[
  Ag  Ag0  4  0.0000  0.0000  0.5000  1
  Ag  Ag1  4  0.0000  0.2500  0.8733  1
  Ag  Ag2  4  0.2500  0.2500  0.2500  1
  Cl  Cl3  8  0.0000  0.0147  0.2547  1
  Cl  Cl4  8  0.2358  0.7500  0.5050  1
]