data_[Ac2Pr8Sm2Er4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ac  1.1000  1.9500  1.2600
  Pr  1.1300  1.8500  1.0600
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.6380]
_cell_length_b [5.2224]
_cell_length_c [10.4739]
_cell_angle_alpha [90.0000]
_cell_angle_beta [116.8400]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [AcPr4SmEr2]
_chemical_formula_sum '[Ac2 Pr8 Sm2 Er4]'
_cell_volume [568.0052]
_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  2  0.0000  0.0000  0.5000  1
  Pr  Pr1  4  0.2475  0.0000  0.3701  1
  Pr  Pr2  4  0.2487  0.5000  0.1219  1
  Sm  Sm3  2  0.0000  0.0000  0.0000  1
  Er  Er4  4  0.0009  0.5000  0.2445  1
]