data_[La4Er4Se4S8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Er  1.2400  1.7500  1.0300
  Se  2.5500  1.1500  1.0133
  S  2.5800  1.0000  0.8800
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [6.2999]
_cell_length_b [13.8071]
_cell_length_c [6.2919]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [LaErSeS2]
_chemical_formula_sum '[La4 Er4 Se4 S8]'
_cell_volume [547.2889]
_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
[
  La  La0  4  0.0000  0.3758  0.7500  1
  Er  Er1  4  0.0000  0.0953  0.7500  1
  Se  Se2  4  0.0000  0.2501  0.2500  1
  S  S3  8  0.2476  0.5000  0.0000  1
]