data_[La4Fe2Cu2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Fe  1.8300  1.4000  0.8525
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [3.5485]
_cell_length_b [4.6588]
_cell_length_c [11.0111]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [La2FeCu]
_chemical_formula_sum '[La4 Fe2 Cu2]'
_cell_volume [182.0302]
_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
[
  La  La0  2  0.0000  0.0000  0.9698  1
  La  La1  2  0.0000  0.5000  0.7683  1
  Fe  Fe2  2  0.0000  0.5000  0.2091  1
  Cu  Cu3  2  0.0000  0.0000  0.5528  1
]