data_[La2Pm4Er16]
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 [C2/m]
_cell_length_a [19.0653]
_cell_length_b [6.9950]
_cell_length_c [5.5138]
_cell_angle_alpha [90.0000]
_cell_angle_beta [92.8728]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [La(PmEr4)2]
_chemical_formula_sum '[La2 Pm4 Er16]'
_cell_volume [734.4132]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.0000  1
  Pm  Pm1  4  0.2151  0.5000  0.2484  1
  Er  Er2  8  0.1325  0.2673  0.7313  1
  Er  Er3  4  0.0463  0.5000  0.2389  1
  Er  Er4  4  0.1875  0.0000  0.2339  1
]