data_[Ag8As12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ag  1.9300  1.6000  1.0867
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [6.3322]
_cell_length_b [15.9681]
_cell_length_c [5.0914]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.9984]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ag2As3]
_chemical_formula_sum '[Ag8 As12]'
_cell_volume [477.3347]
_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  0.0967  0.0000  1.0
  Ag  Ag1  4  0.2500  0.2500  0.5000  1.0
  As  As2  8  0.1886  0.3773  0.1916  1.0
  As  As3  4  0.2004  0.5000  0.5042  1.0
]