data_[Sm6Y16Er4]
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 [Cmmm]
_cell_length_a [7.7089]
_cell_length_b [20.0708]
_cell_length_c [5.6782]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [65]
_chemical_formula_structural [Sm3(Y4Er)2]
_chemical_formula_sum '[Sm6 Y16 Er4]'
_cell_volume [878.5486]
_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  4  0.2107  0.5000  0.0000  1
  Sm  Sm1  2  0.0000  0.0000  0.5000  1
  Y  Y2  8  0.2097  0.3914  0.5000  1
  Y  Y3  4  0.0000  0.1347  0.0000  1
  Y  Y4  4  0.0000  0.3273  0.0000  1
  Er  Er5  4  0.0000  0.2413  0.5000  1
]