data_[Y4Er20Ni8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Ni  1.9100  1.3500  0.7400
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [3.5968]
_cell_length_b [12.9646]
_cell_length_c [18.1735]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [YEr5Ni2]
_chemical_formula_sum '[Y4 Er20 Ni8]'
_cell_volume [847.4512]
_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
[
  Y  Y0  4  0.0000  0.2882  0.2500  1
  Er  Er1  8  0.0000  0.0623  0.0863  1
  Er  Er2  8  0.0000  0.3255  0.0605  1
  Er  Er3  4  0.0000  0.4349  0.7500  1
  Ni  Ni4  8  0.0000  0.2946  0.6366  1
]