data_[La6Ce2Pm2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Ce  1.1200  1.8500  1.0800
  Pm  1.1300  1.8500  1.1100
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [9.0338]
_cell_length_b [3.5599]
_cell_length_c [11.6329]
_cell_angle_alpha [90.0000]
_cell_angle_beta [111.9181]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [La3CePm]
_chemical_formula_sum '[La6 Ce2 Pm2]'
_cell_volume [347.0683]
_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  0.2001  0.7500  0.5556  1
  La  La1  2  0.2051  0.2500  0.0320  1
  La  La2  2  0.4156  0.7500  0.3386  1
  Ce  Ce3  2  0.3938  0.7500  0.8614  1
  Pm  Pm4  2  0.0243  0.2500  0.2552  1
]