data_[Cd4Ag8Se4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cd  1.6900  1.5500  1.0900
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [7.9840]
_cell_length_b [10.6824]
_cell_length_c [6.8469]
_cell_angle_alpha [90.0000]
_cell_angle_beta [124.1926]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [CdAg2SeO4]
_chemical_formula_sum '[Cd4 Ag8 Se4 O16]'
_cell_volume [483.0227]
_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
[
  Cd  Cd0  4  0.2500  0.2500  0.5000  1
  Ag  Ag1  4  0.0000  0.5000  0.0000  1
  Ag  Ag2  4  0.2500  0.2500  0.0000  1
  Se  Se3  4  0.0000  0.0000  0.0000  1
  O  O4  8  0.0638  0.1780  0.0958  1
  O  O5  8  0.2172  0.4594  0.3689  1
]