data_[La9Ce3Pm18]
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 [R3]
_cell_length_a [10.0288]
_cell_length_b [10.0288]
_cell_length_c [11.8239]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [La3CePm6]
_chemical_formula_sum '[La9 Ce3 Pm18]'
_cell_volume [1029.8778]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.3487  1
  La  La1  3  0.0000  0.0000  0.6360  1
  La  La2  3  0.0000  0.0000  0.8831  1
  Ce  Ce3  3  0.0000  0.0000  0.1187  1
  Pm  Pm4  9  0.0075  0.3543  0.7600  1
  Pm  Pm5  9  0.0116  0.6781  0.5778  1
]