data_[Sm4Y16Er4]
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
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [10.7640]
_cell_length_b [6.2292]
_cell_length_c [12.1383]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.1282]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [SmY4Er]
_chemical_formula_sum '[Sm4 Y16 Er4]'
_cell_volume [777.7887]
_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  0.0837  0.2500  1.0
  Y  Y1  8  0.0831  0.2499  0.9997  1.0
  Y  Y2  8  0.1675  0.4179  0.7500  1.0
  Er  Er3  4  0.2500  0.2500  0.5000  1.0
]