data_[Sr6Si6Sn3Au18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  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 [R-3m]
_cell_length_a [6.7778]
_cell_length_b [6.7778]
_cell_length_c [24.7758]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Sr2Si2SnAu6]
_chemical_formula_sum '[Sr6 Si6 Sn3 Au18]'
_cell_volume [985.6760]
_cell_formula_units_Z [3]
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
[
  Sr  Sr0  6  0.0000  0.0000  0.2127  1
  Si  Si1  6  0.0000  0.0000  0.4526  1
  Sn  Sn2  3  0.0000  0.0000  0.0000  1
  Au  Au3  18  0.0535  0.5267  0.7592  1
]