data_[Er8Ga4Cu8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Er  1.2400  1.7500  1.0300
  Ga  1.8100  1.3000  0.7600
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [10.2692]
_cell_length_b [4.1996]
_cell_length_c [10.4185]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.2563]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Er2GaCu2]
_chemical_formula_sum '[Er8 Ga4 Cu8]'
_cell_volume [399.4262]
_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  0.0147  0.0000  0.3391  1.0
  Er  Er1  4  0.1935  0.0000  0.1084  1.0
  Ga  Ga2  4  0.2253  0.5000  0.3475  1.0
  Cu  Cu3  4  0.0157  0.5000  0.8869  1.0
  Cu  Cu4  4  0.1391  0.5000  0.5630  1.0
]