data_[Er4Ag8Bi8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Ag  1.9300  1.6000  1.0867
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [4.6058]
_cell_length_b [23.3128]
_cell_length_c [4.6040]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Er(AgBi)2]
_chemical_formula_sum '[Er4 Ag8 Bi8]'
_cell_volume [494.3468]
_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
[
  Er  Er0  4  0.0000  0.3566  0.2500  1
  Ag  Ag1  4  0.0000  0.0379  0.7500  1
  Ag  Ag2  4  0.0000  0.4628  0.7500  1
  Bi  Bi3  4  0.0000  0.1200  0.2500  1
  Bi  Bi4  4  0.0000  0.2496  0.7500  1
]