data_[Rb8Sb4Se12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Sb  2.0500  1.4500  0.8300
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [C2/c]
_cell_length_a [13.6817]
_cell_length_b [9.0250]
_cell_length_c [7.2967]
_cell_angle_alpha [90.0000]
_cell_angle_beta [95.7750]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [15]
_chemical_formula_structural [Rb2SbSe3]
_chemical_formula_sum '[Rb8 Sb4 Se12]'
_cell_volume [896.3955]
_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  0.1555  0.3385  0.1995  1.0
  Sb  Sb1  4  0.0000  0.0737  0.7500  1.0
  Se  Se2  8  0.1450  0.0206  0.5118  1.0
  Se  Se3  4  0.0000  0.3559  0.7500  1.0
]