data_[Ce6Y3Er3]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ce  1.1200  1.8500  1.0800
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [3.4873]
_cell_length_b [3.4873]
_cell_length_c [34.5405]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [Ce2YEr]
_chemical_formula_sum '[Ce6 Y3 Er3]'
_cell_volume [363.7867]
_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
[
  Ce  Ce0  3  0.0000  0.0000  0.7514  1.0
  Ce  Ce1  3  0.0000  0.0000  0.9156  1.0
  Y  Y2  3  0.0000  0.0000  0.3320  1.0
  Er  Er3  3  0.0000  0.0000  0.5011  1.0
]