data_[Ho2Er2Co2Cu2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  Co  1.8800  1.3500  0.7683
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.1760]
_cell_length_b [3.7748]
_cell_length_c [10.1292]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [HoErCoCu]
_chemical_formula_sum '[Ho2 Er2 Co2 Cu2]'
_cell_volume [159.6722]
_cell_formula_units_Z [2]
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
[
  Ho  Ho0  2  0.0000  0.0000  0.1423  1.0
  Er  Er1  2  0.5000  0.0000  0.8609  1.0
  Co  Co2  2  0.0000  0.0000  0.4281  1.0
  Cu  Cu3  2  0.5000  0.0000  0.5687  1.0
]