data_[Dy8Cu4Sn4Se20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Dy  1.2200  1.7500  1.1310
  Cu  1.9000  1.3500  0.8200
  Sn  1.9600  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.9437]
_cell_length_b [17.2413]
_cell_length_c [12.2291]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Dy2CuSnSe5]
_chemical_formula_sum '[Dy8 Cu4 Sn4 Se20]'
_cell_volume [831.5111]
_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  0.1167  0.3020  1.0
  Dy  Dy1  4  0.0000  0.1203  0.6807  1.0
  Cu  Cu2  4  0.0000  0.4963  0.9890  1.0
  Sn  Sn3  4  0.0000  0.1831  0.9945  1.0
  Se  Se4  4  0.0000  0.0350  0.0819  1.0
  Se  Se5  4  0.0000  0.2951  0.6625  1.0
  Se  Se6  4  0.0000  0.2958  0.3222  1.0
  Se  Se7  4  0.0000  0.3510  0.9959  1.0
  Se  Se8  4  0.0000  0.4909  0.2953  1.0
]