data_[Dy4Er8Cu4Se20]
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
  Cu  1.9000  1.3500  0.8200
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.9614]
_cell_length_b [17.4940]
_cell_length_c [11.9257]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [DyEr2CuSe5]
_chemical_formula_sum '[Dy4 Er8 Cu4 Se20]'
_cell_volume [826.4713]
_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
[
  Dy  Dy0  4  0.0000  0.1924  0.0100  1.0
  Er  Er1  4  0.0000  0.1068  0.6834  1.0
  Er  Er2  4  0.0000  0.1202  0.3055  1.0
  Cu  Cu3  4  0.0000  0.4361  0.4568  1.0
  Se  Se4  4  0.0000  0.0407  0.0673  1.0
  Se  Se5  4  0.0000  0.2889  0.6795  1.0
  Se  Se6  4  0.0000  0.3172  0.3397  1.0
  Se  Se7  4  0.0000  0.3576  0.0007  1.0
  Se  Se8  4  0.0000  0.4978  0.7810  1.0
]