data_[U4Ag4Se8S4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  U  1.3800  1.7500  0.9913
  Ag  1.9300  1.6000  1.0867
  Se  2.5500  1.1500  1.0133
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.8794]
_cell_length_b [13.3126]
_cell_length_c [8.8993]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [UAgSe2S]
_chemical_formula_sum '[U4 Ag4 Se8 S4]'
_cell_volume [459.5988]
_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
[
  U  U0  4  0.0000  0.2544  0.7500  1
  Ag  Ag1  4  0.0000  0.0000  0.0000  1
  Se  Se2  8  0.0000  0.3480  0.0642  1
  S  S3  4  0.0000  0.1093  0.2500  1
]