data_[Dy4Er4Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Dy  1.2200  1.7500  1.1310
  Er  1.2400  1.7500  1.0300
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Pbcm]
_cell_length_a [6.5965]
_cell_length_b [6.8865]
_cell_length_c [6.7074]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [57]
_chemical_formula_structural [DyErCu]
_chemical_formula_sum '[Dy4 Er4 Cu4]'
_cell_volume [304.6938]
_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
[
  Dy  Dy0  4  0.3938  0.5910  0.2500  1.0
  Er  Er1  4  0.0620  0.2500  0.0000  1.0
  Cu  Cu2  4  0.2082  0.5378  0.7500  1.0
]