data_[Na14Tl2Sn10]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Tl  1.6200  1.9000  1.3325
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Imm2]
_cell_length_a [6.7902]
_cell_length_b [10.6434]
_cell_length_c [11.0323]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [44]
_chemical_formula_structural [Na7TlSn5]
_chemical_formula_sum '[Na14 Tl2 Sn10]'
_cell_volume [797.3149]
_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  4  0.0000  0.2935  0.0326  1
  Na  Na1  4  0.0000  0.3235  0.5094  1
  Na  Na2  2  0.0000  0.0000  0.2419  1
  Na  Na3  2  0.0000  0.0000  0.6114  1
  Na  Na4  2  0.0000  0.5000  0.7965  1
  Tl  Tl5  2  0.0000  0.0000  0.9321  1
  Sn  Sn6  8  0.2220  0.2356  0.7700  1
  Sn  Sn7  2  0.0000  0.5000  0.2544  1
]