data_[Na4Si2Sn2Au12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Si  1.9000  1.1000  0.5400
  Sn  1.9600  1.4500  0.8300
  Au  2.5400  1.3500  1.0700
]
_symmetry_space_group_name_H-M [Pmmn]
_cell_length_a [5.7996]
_cell_length_b [9.0542]
_cell_length_c [8.9030]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [59]
_chemical_formula_structural [Na2SiSnAu6]
_chemical_formula_sum '[Na4 Si2 Sn2 Au12]'
_cell_volume [467.5050]
_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  0.2439  0.2664  1.0
  Si  Si1  2  0.0000  0.0000  0.7664  1.0
  Sn  Sn2  2  0.0000  0.5000  0.7128  1.0
  Au  Au3  4  0.0000  0.2473  0.8805  1.0
  Au  Au4  4  0.2451  0.5000  0.9989  1.0
  Au  Au5  4  0.2497  0.5000  0.4539  1.0
]