data_[Dy2Y2Cu4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Dy  1.2200  1.7500  1.1310
  Y  1.2200  1.8000  1.0400
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [Pmc2_1]
_cell_length_a [4.4471]
_cell_length_b [5.3800]
_cell_length_c [7.1086]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [26]
_chemical_formula_structural [DyYCu2]
_chemical_formula_sum '[Dy2 Y2 Cu4]'
_cell_volume [170.0776]
_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  0.0000  0.3824  0.6810  1
  Y  Y1  2  0.5000  0.1173  0.3189  1
  Cu  Cu2  2  0.0000  0.1258  0.0339  1
  Cu  Cu3  2  0.5000  0.3761  0.9662  1
]