data_[Ac12La8Pm4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  La  1.1000  1.9500  1.1720
  Pm  1.1300  1.8500  1.1100
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [9.6539]
_cell_length_b [10.8296]
_cell_length_c [9.5677]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.7740]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Ac3La2Pm]
_chemical_formula_sum '[Ac12 La8 Pm4]'
_cell_volume [979.2371]
_cell_formula_units_Z [4]
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  8  0.1324  0.2530  0.6188  1
  Ac  Ac1  8  0.2203  0.0829  0.9830  1
  Ac  Ac2  4  0.0000  0.4319  0.2500  1
  Pm  Pm3  4  0.0000  0.1108  0.2500  1
]