data_[Sm8Ho16Er4Tm4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [6.7670]
_cell_length_b [11.7303]
_cell_length_c [13.2288]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [Sm2Ho4ErTm]
_chemical_formula_sum '[Sm8 Ho16 Er4 Tm4]'
_cell_volume [1050.0972]
_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  4  0.0000  0.0000  0.5000  1
  Sm  Sm1  4  0.2500  0.2500  0.7500  1
  Ho  Ho2  8  0.0000  0.0035  0.2478  1
  Ho  Ho3  8  0.2486  0.2500  0.0036  1
  Er  Er4  4  0.0000  0.0000  0.0000  1
  Tm  Tm5  4  0.2500  0.2500  0.2500  1
]