data_[Pr1Sm1Er2Bi4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
  Bi  2.0200  1.6000  1.0350
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.8143]
_cell_length_b [4.5402]
_cell_length_c [7.8261]
_cell_angle_alpha [90.0000]
_cell_angle_beta [109.4790]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [PrSm(ErBi2)2]
_chemical_formula_sum '[Pr1 Sm1 Er2 Bi4]'
_cell_volume [261.7660]
_cell_formula_units_Z [1]
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
[
  Pr  Pr0  1  0.5000  0.5000  0.0000  1.0
  Sm  Sm1  1  0.5000  0.0000  0.5000  1.0
  Er  Er2  1  0.0000  0.0000  0.0000  1.0
  Er  Er3  1  0.0000  0.5000  0.5000  1.0
  Bi  Bi4  2  0.2388  0.0000  0.7439  1.0
  Bi  Bi5  2  0.2406  0.5000  0.2493  1.0
]