data_[Ac6Pm6Ag8]
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
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [5.0410]
_cell_length_b [11.2845]
_cell_length_c [11.0788]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Ac3Pm3Ag4]
_chemical_formula_sum '[Ac6 Pm6 Ag8]'
_cell_volume [630.2162]
_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
[
  Ac  Ac0  4  0.5000  0.1742  0.4994  1
  Ac  Ac1  2  0.5000  0.0000  0.8300  1
  Pm  Pm2  4  0.0000  0.2455  0.2485  1
  Pm  Pm3  2  0.5000  0.0000  0.1767  1
  Ag  Ag4  4  0.0000  0.1246  0.0034  1
  Ag  Ag5  2  0.0000  0.0000  0.3645  1
  Ag  Ag6  2  0.0000  0.0000  0.6260  1
]