data_[Na2Sn4Sb2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sn  1.9600  1.4500  0.8300
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [6.9385]
_cell_length_b [4.8402]
_cell_length_c [7.2314]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.3911]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [NaSn2Sb]
_chemical_formula_sum '[Na2 Sn4 Sb2]'
_cell_volume [235.2386]
_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  0.4188  0.2500  0.1780  1.0
  Sn  Sn1  2  0.0979  0.7500  0.8963  1.0
  Sn  Sn2  2  0.1794  0.7500  0.3625  1.0
  Sb  Sb3  2  0.2532  0.2500  0.6893  1.0
]