data_[Na3Dy1As2]
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
  As  2.1800  1.1500  0.6600
]
_symmetry_space_group_name_H-M [P-3m1]
_cell_length_a [4.6536]
_cell_length_b [4.6536]
_cell_length_c [7.2966]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [164]
_chemical_formula_structural [Na3DyAs2]
_chemical_formula_sum '[Na3 Dy1 As2]'
_cell_volume [136.8425]
_cell_formula_units_Z [1]
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  0.3333  0.6667  0.3263  1
  Na  Na1  1  0.0000  0.0000  0.5000  1
  Dy  Dy2  1  0.0000  0.0000  0.0000  1
  As  As3  2  0.3333  0.6667  0.7874  1
]