data_[Er20Cd8Ni8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Cd  1.6900  1.5500  1.0900
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Cmce]
_cell_length_a [16.1656]
_cell_length_b [7.3771]
_cell_length_c [7.3232]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [64]
_chemical_formula_structural [Er5(CdNi)2]
_chemical_formula_sum '[Er20 Cd8 Ni8]'
_cell_volume [873.3251]
_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  16  0.1170  0.1793  0.6757  1.0
  Er  Er1  4  0.0000  0.0000  0.0000  1.0
  Cd  Cd2  8  0.2222  0.0000  0.0000  1.0
  Ni  Ni3  8  0.0000  0.1212  0.3798  1.0
]