data_[Na1Dy1Sn2I8]
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
  Sn  1.9600  1.4500  0.8300
  I  2.6600  1.4000  1.2733
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [7.2505]
_cell_length_b [9.2694]
_cell_length_c [7.7334]
_cell_angle_alpha [90.0000]
_cell_angle_beta [91.1546]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [NaDy(SnI4)2]
_chemical_formula_sum '[Na1 Dy1 Sn2 I8]'
_cell_volume [519.6406]
_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  1  0.0000  0.5000  0.0000  1.0
  Dy  Dy1  1  0.0000  0.0000  0.0000  1.0
  Sn  Sn2  2  0.5000  0.2536  0.5000  1.0
  I  I3  4  0.2415  0.2387  0.1532  1.0
  I  I4  2  0.2349  0.0000  0.6748  1.0
  I  I5  2  0.2646  0.5000  0.6517  1.0
]