data_[Er4In4Cu4Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  In  1.7800  1.5500  0.9400
  Cu  1.9000  1.3500  0.8200
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [F-43m]
_cell_length_a [6.7938]
_cell_length_b [6.7938]
_cell_length_c [6.7938]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [216]
_chemical_formula_structural [ErInCuAg]
_chemical_formula_sum '[Er4 In4 Cu4 Ag4]'
_cell_volume [313.5772]
_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  0.0000  0.0000  1.0
  In  In1  4  0.0000  0.0000  0.5000  1.0
  Cu  Cu2  4  0.2500  0.2500  0.7500  1.0
  Ag  Ag3  4  0.2500  0.2500  0.2500  1.0
]