data_[Rb4Ba8Dy4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ba  0.8900  2.1500  1.4900
  Dy  1.2200  1.7500  1.1310
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [7.5304]
_cell_length_b [7.5348]
_cell_length_c [11.1509]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [RbBa2DyO4]
_chemical_formula_sum '[Rb4 Ba8 Dy4 O16]'
_cell_volume [632.7026]
_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
[
  Rb  Rb0  4  0.0000  0.0000  0.0000  1
  Ba  Ba1  4  0.0000  0.0000  0.5000  1
  Ba  Ba2  4  0.2500  0.2500  0.7500  1
  Dy  Dy3  4  0.2500  0.2500  0.2500  1
  O  O4  8  0.0000  0.0219  0.2548  1
  O  O5  8  0.2351  0.2500  0.4517  1
]