data_[Na2Dy2Y2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Dy  1.2200  1.7500  1.1310
  Y  1.2200  1.8000  1.0400
]
_symmetry_space_group_name_H-M [P4/nmm]
_cell_length_a [3.5179]
_cell_length_b [3.5179]
_cell_length_c [16.2710]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [129]
_chemical_formula_structural [NaDyY]
_chemical_formula_sum '[Na2 Dy2 Y2]'
_cell_volume [201.3591]
_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
[
  Na  Na0  2  0.0000  0.5000  0.9074  1
  Dy  Dy1  2  0.0000  0.5000  0.2671  1
  Y  Y2  2  0.0000  0.5000  0.5806  1
]