data_[Rb4Sb8]
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
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [14.1798]
_cell_length_b [4.2429]
_cell_length_c [8.7453]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.0157]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [RbSb2]
_chemical_formula_sum '[Rb4 Sb8]'
_cell_volume [510.4799]
_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  0.1650  0.0000  0.6964  1.0
  Sb  Sb1  4  0.0639  0.5000  0.3121  1.0
  Sb  Sb2  4  0.0949  0.0000  0.1068  1.0
]