data_[Al8Cd4Ag4Se16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Al  1.6100  1.2500  0.6750
  Cd  1.6900  1.5500  1.0900
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Fmm2]
_cell_length_a [8.1211]
_cell_length_b [8.8174]
_cell_length_c [11.9323]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [42]
_chemical_formula_structural [Al2CdAgSe4]
_chemical_formula_sum '[Al8 Cd4 Ag4 Se16]'
_cell_volume [854.4372]
_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
[
  Al  Al0  8  0.2500  0.2500  0.2427  1
  Cd  Cd1  4  0.0000  0.0000  0.4987  1
  Ag  Ag2  4  0.0000  0.0000  0.9937  1
  Se  Se3  8  0.0000  0.2498  0.3665  1
  Se  Se4  8  0.2472  0.0000  0.1444  1
]