data_[Cr1Fe2Cu1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cr  1.6600  1.4000  0.9400
  Fe  1.8300  1.4000  0.8525
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [2.4229]
_cell_length_b [4.0253]
_cell_length_c [4.8152]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.9761]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [CrFe2Cu]
_chemical_formula_sum '[Cr1 Fe2 Cu1]'
_cell_volume [46.2530]
_cell_formula_units_Z [1]
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
[
  Cr  Cr0  1  0.5000  0.5000  0.0000  1
  Fe  Fe1  2  0.2720  0.0000  0.2458  1
  Cu  Cu2  1  0.0000  0.5000  0.5000  1
]