data_[Dy2Er2Br8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Dy  1.2200  1.7500  1.1310
  Er  1.2400  1.7500  1.0300
  Br  2.9600  1.1500  0.8825
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [13.3966]
_cell_length_b [3.8554]
_cell_length_c [18.7298]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [DyErBr4]
_chemical_formula_sum '[Dy2 Er2 Br8]'
_cell_volume [967.3952]
_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
[
  Dy  Dy0  2  0.1272  0.7500  0.5002  1
  Er  Er1  2  0.3643  0.2500  0.5011  1
  Br  Br2  2  0.0408  0.2500  0.5966  1
  Br  Br3  2  0.2074  0.2500  0.4012  1
  Br  Br4  2  0.2926  0.7500  0.5996  1
  Br  Br5  2  0.4590  0.7500  0.4103  1
]