data_[Sm20Ho8Er4]
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
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [5.5622]
_cell_length_b [11.8946]
_cell_length_c [16.1632]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Sm5Ho2Er]
_chemical_formula_sum '[Sm20 Ho8 Er4]'
_cell_volume [1069.3520]
_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  0.0000  0.0757  0.0931  1
  Sm  Sm1  8  0.0000  0.3809  0.0508  1
  Sm  Sm2  4  0.0000  0.4603  0.7500  1
  Ho  Ho3  8  0.0000  0.2242  0.6325  1
  Er  Er4  4  0.0000  0.2627  0.2500  1
]