data_[Ac12Pm4Sn12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Pm  1.1300  1.8500  1.1100
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [9.1548]
_cell_length_b [13.9921]
_cell_length_c [8.6088]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.9953]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac3PmSn3]
_chemical_formula_sum '[Ac12 Pm4 Sn12]'
_cell_volume [1100.0626]
_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
[
  Ac  Ac0  4  0.0000  0.1625  0.5000  1
  Ac  Ac1  4  0.0000  0.2294  0.0000  1
  Ac  Ac2  4  0.1163  0.5000  0.3503  1
  Pm  Pm3  4  0.2467  0.0000  0.0960  1
  Sn  Sn4  8  0.1814  0.3279  0.7017  1
  Sn  Sn5  4  0.0634  0.0000  0.7859  1
]