data_[Sm2Er8Tm6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Pmn2_1]
_cell_length_a [11.1257]
_cell_length_b [7.1945]
_cell_length_c [6.2216]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [31]
_chemical_formula_structural [SmEr4Tm3]
_chemical_formula_sum '[Sm2 Er8 Tm6]'
_cell_volume [497.9979]
_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
[
  Sm  Sm0  2  0.0000  0.3744  0.1476  1.0
  Er  Er1  4  0.2482  0.8757  0.4813  1.0
  Er  Er2  2  0.0000  0.1249  0.6485  1.0
  Er  Er3  2  0.0000  0.8754  0.1467  1.0
  Tm  Tm4  4  0.2499  0.6256  0.9813  1.0
  Tm  Tm5  2  0.0000  0.6253  0.6473  1.0
]