data_[Pm2Er2Cu2Au2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
  Cu  1.9000  1.3500  0.8200
  Au  2.5400  1.3500  1.0700
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [4.5571]
_cell_length_b [3.7903]
_cell_length_c [10.9311]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [PmErCuAu]
_chemical_formula_sum '[Pm2 Er2 Cu2 Au2]'
_cell_volume [188.8103]
_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
[
  Pm  Pm0  2  0.5000  0.0000  0.8595  1
  Er  Er1  2  0.0000  0.0000  0.1385  1
  Cu  Cu2  2  0.0000  0.0000  0.4221  1
  Au  Au3  2  0.5000  0.0000  0.5799  1
]