data_[Rb8Ag12Sn20]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ag  1.9300  1.6000  1.0867
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Ibam]
_cell_length_a [12.2315]
_cell_length_b [13.9951]
_cell_length_c [6.8624]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [72]
_chemical_formula_structural [Rb2Ag3Sn5]
_chemical_formula_sum '[Rb8 Ag12 Sn20]'
_cell_volume [1174.7175]
_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
[
  Rb  Rb0  8  0.2482  0.3728  0.5000  1.0
  Ag  Ag1  8  0.1313  0.3730  0.0000  1.0
  Ag  Ag2  4  0.0000  0.0000  0.2500  1.0
  Sn  Sn3  8  0.0000  0.2481  0.2500  1.0
  Sn  Sn4  8  0.1349  0.1172  0.5000  1.0
  Sn  Sn5  4  0.0000  0.5000  0.2500  1.0
]