data_[Sm8Y4Er20Tm4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Y  1.2200  1.8000  1.0400
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [I4/mcm]
_cell_length_a [8.5991]
_cell_length_b [8.5991]
_cell_length_c [15.4298]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [140]
_chemical_formula_structural [Sm2YEr5Tm]
_chemical_formula_sum '[Sm8 Y4 Er20 Tm4]'
_cell_volume [1140.9573]
_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
[
  Sm  Sm0  8  0.1168  0.3832  0.0000  1
  Y  Y1  4  0.0000  0.0000  0.2500  1
  Er  Er2  16  0.2112  0.2888  0.6390  1
  Er  Er3  4  0.0000  0.0000  0.0000  1
  Tm  Tm4  4  0.0000  0.5000  0.2500  1
]