data_[La4Tb4Pm4Er8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Tb  1.1000  1.7500  0.9815
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [8.4490]
_cell_length_b [11.5494]
_cell_length_c [7.2171]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [LaTbPmEr2]
_chemical_formula_sum '[La4 Tb4 Pm4 Er8]'
_cell_volume [704.2481]
_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
[
  La  La0  4  0.0000  0.2661  0.2500  1
  Tb  Tb1  4  0.0000  0.2815  0.7500  1
  Pm  Pm2  4  0.0000  0.0004  0.2500  1
  Er  Er3  8  0.1875  0.5000  0.0000  1
]