data_[Na2Al2Sn1O6]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Al  1.6100  1.2500  0.6750
  Sn  1.9600  1.4500  0.8300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P-31m]
_cell_length_a [5.1345]
_cell_length_b [5.1345]
_cell_length_c [5.6825]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [162]
_chemical_formula_structural [Na2Al2SnO6]
_chemical_formula_sum '[Na2 Al2 Sn1 O6]'
_cell_volume [129.7389]
_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  0.5000  1.0
  Al  Al1  2  0.3333  0.6667  0.0000  1.0
  Sn  Sn2  1  0.0000  0.0000  0.0000  1.0
  O  O3  6  0.0000  0.3558  0.1824  1.0
]