data_[Sr8Sn4Au4O20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Sn  1.9600  1.4500  0.8300
  Au  2.5400  1.3500  1.0700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.3070]
_cell_length_b [15.7976]
_cell_length_c [10.3723]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sr2SnAuO5]
_chemical_formula_sum '[Sr8 Sn4 Au4 O20]'
_cell_volume [541.8767]
_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
[
  Sr  Sr0  4  0.0000  0.1140  0.6886  1
  Sr  Sr1  4  0.0000  0.1271  0.3052  1
  Sn  Sn2  4  0.0000  0.2219  0.0140  1
  Au  Au3  4  0.0000  0.4601  0.4528  1
  O  O4  4  0.0000  0.0892  0.0605  1
  O  O5  4  0.0000  0.2774  0.6502  1
  O  O6  4  0.0000  0.2906  0.3803  1
  O  O7  4  0.0000  0.3517  0.0056  1
  O  O8  4  0.0000  0.4959  0.7667  1
]