data_[Ac4Pm8Y10]
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
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.8374]
_cell_length_b [6.8624]
_cell_length_c [6.9445]
_cell_angle_alpha [90.0000]
_cell_angle_beta [99.1114]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Ac2Pm4Y5]
_chemical_formula_sum '[Ac4 Pm8 Y10]'
_cell_volume [792.2830]
_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  0.2008  0.0000  0.3029  1
  Pm  Pm1  4  0.0840  0.5000  0.3980  1
  Pm  Pm2  4  0.2457  0.0000  0.8123  1
  Y  Y3  8  0.0876  0.2599  0.9001  1
  Y  Y4  2  0.0000  0.0000  0.5000  1
]