data_[Rb8Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [13.7201]
_cell_length_b [4.6040]
_cell_length_c [10.8798]
_cell_angle_alpha [90.0000]
_cell_angle_beta [108.2540]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2Sn]
_chemical_formula_sum '[Rb8 Sn4]'
_cell_volume [652.6600]
_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  4  0.0229  0.5000  0.1746  1
  Rb  Rb1  4  0.1713  0.0000  0.6515  1
  Sn  Sn2  4  0.2065  0.0000  0.0460  1
]