data_[Rb8Sn4Sb8]
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
  Sb  2.0500  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.9243]
_cell_length_b [5.9453]
_cell_length_c [11.7934]
_cell_angle_alpha [90.0000]
_cell_angle_beta [119.1159]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Rb2SnSb2]
_chemical_formula_sum '[Rb8 Sn4 Sb8]'
_cell_volume [791.6888]
_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  0.0113  0.5000  0.6799  1.0
  Rb  Rb1  4  0.1770  0.5000  0.0999  1.0
  Sn  Sn2  4  0.2121  0.0000  0.3543  1.0
  Sb  Sb3  4  0.0218  0.0000  0.8891  1.0
  Sb  Sb4  4  0.1329  0.0000  0.5528  1.0
]