data_[Pr4Er8Tm16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [6.6379]
_cell_length_b [11.2007]
_cell_length_c [12.2047]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Pr(ErTm2)2]
_chemical_formula_sum '[Pr4 Er8 Tm16]'
_cell_volume [907.3974]
_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
[
  Pr  Pr0  4  0.0000  0.2500  0.7221  1
  Er  Er1  4  0.0000  0.0000  0.5000  1
  Er  Er2  4  0.2500  0.2500  0.2500  1
  Tm  Tm3  8  0.0000  0.0104  0.1356  1
  Tm  Tm4  8  0.2278  0.2500  0.9902  1
]