data_[Ce2Nd2Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Nd  1.1400  1.8500  1.2765
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.5829]
_cell_length_b [5.6235]
_cell_length_c [7.4007]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [CeNdCu2]
_chemical_formula_sum '[Ce2 Nd2 Cu4]'
_cell_volume [190.7295]
_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
[
  Ce  Ce0  2  0.0000  0.1233  0.1787  1
  Nd  Nd1  2  0.5000  0.3774  0.8201  1
  Cu  Cu2  2  0.0000  0.3713  0.5340  1
  Cu  Cu3  2  0.5000  0.1352  0.4672  1
]