data_[Ac36Pm3Sn18]
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 [R-3]
_cell_length_a [15.9728]
_cell_length_b [15.9728]
_cell_length_c [10.7499]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Ac12PmSn6]
_chemical_formula_sum '[Ac36 Pm3 Sn18]'
_cell_volume [2375.1930]
_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
[
  Ac  Ac0  18  0.0437  0.1973  0.3195  1
  Ac  Ac1  18  0.0567  0.2472  0.9343  1
  Pm  Pm2  3  0.0000  0.0000  0.0000  1
  Sn  Sn3  18  0.0468  0.2509  0.6188  1
]