data_[La2Pm6Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Pm  1.1300  1.8500  1.1100
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [5.0379]
_cell_length_b [9.0121]
_cell_length_c [7.1391]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [LaPm3Cu2]
_chemical_formula_sum '[La2 Pm6 Cu4]'
_cell_volume [324.1281]
_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  0.5000  0.4209  0.5076  1
  Pm  Pm1  2  0.0000  0.0741  0.4901  1
  Pm  Pm2  2  0.0000  0.3377  0.8595  1
  Pm  Pm3  2  0.5000  0.1589  0.1420  1
  Cu  Cu4  2  0.0000  0.3426  0.2576  1
  Cu  Cu5  2  0.5000  0.1515  0.7431  1
]