data_[Na4Sn12Au8]
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
  Au  2.5400  1.3500  1.0700
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [16.4050]
_cell_length_b [4.7070]
_cell_length_c [8.2870]
_cell_angle_alpha [90.0000]
_cell_angle_beta [112.1790]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [NaSn3Au2]
_chemical_formula_sum '[Na4 Sn12 Au8]'
_cell_volume [592.5615]
_cell_formula_units_Z [4]
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  0.1080  0.0000  0.1627  1.0
  Sn  Sn1  4  0.0705  0.0000  0.6924  1.0
  Sn  Sn2  4  0.1137  0.5000  0.4632  1.0
  Sn  Sn3  4  0.2137  0.5000  0.0521  1.0
  Au  Au4  4  0.0315  0.5000  0.8584  1.0
  Au  Au5  4  0.2250  0.0000  0.5869  1.0
]