data_[Ac4Pm4Y8]
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 [P2/c]
_cell_length_a [7.5331]
_cell_length_b [6.3036]
_cell_length_c [12.6017]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.0802]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [13]
_chemical_formula_structural [AcPmY2]
_chemical_formula_sum '[Ac4 Pm4 Y8]'
_cell_volume [572.0011]
_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  0.1944  0.3303  0.8786  1
  Pm  Pm1  4  0.0661  0.1661  0.1236  1
  Y  Y2  4  0.3153  0.3301  0.6180  1
  Y  Y3  4  0.4421  0.1670  0.3760  1
]