data_[Pm3Pr18Er24]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Pr  1.1300  1.8500  1.0600
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [9.1010]
_cell_length_b [9.1010]
_cell_length_c [21.0201]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Pm(Pr3Er4)2]
_chemical_formula_sum '[Pm3 Pr18 Er24]'
_cell_volume [1507.8189]
_cell_formula_units_Z [3]
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  18  0.0606  0.2483  0.7114  1
  Pm  Pm1  3  0.0000  0.0000  0.0000  1
  Er  Er2  18  0.0799  0.5591  0.8075  1
  Er  Er3  6  0.0000  0.0000  0.4235  1
]