data_[Ac8Pm4Ru8]
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
  Ru  2.2000  1.3000  0.6610
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.3688]
_cell_length_b [4.5766]
_cell_length_c [11.0189]
_cell_angle_alpha [90.0000]
_cell_angle_beta [117.8017]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac2PmRu2]
_chemical_formula_sum '[Ac8 Pm4 Ru8]'
_cell_volume [551.7450]
_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  0.0265  0.5000  0.6933  1
  Ac  Ac1  4  0.1780  0.5000  0.0902  1
  Pm  Pm2  4  0.2091  0.0000  0.3697  1
  Ru  Ru3  4  0.0366  0.0000  0.9089  1
  Ru  Ru4  4  0.1245  0.0000  0.5795  1
]