data_[La3Pm18Er36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  La  1.1000  1.9500  1.1720
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [11.0482]
_cell_length_b [11.0482]
_cell_length_c [17.4041]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [La(PmEr2)6]
_chemical_formula_sum '[La3 Pm18 Er36]'
_cell_volume [1839.7620]
_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
[
  La  La0  3  0.0000  0.0000  0.0000  1
  Pm  Pm1  18  0.0718  0.5359  0.7647  1
  Er  Er2  18  0.1055  0.5528  0.4153  1
  Er  Er3  18  0.1067  0.2133  0.4100  1
]