data_[Rb4Sb4Se8]
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 [P2_1/c]
_cell_length_a [7.6912]
_cell_length_b [10.1828]
_cell_length_c [7.5482]
_cell_angle_alpha [90.0000]
_cell_angle_beta [104.3078]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [14]
_chemical_formula_structural [RbSbSe2]
_chemical_formula_sum '[Rb4 Sb4 Se8]'
_cell_volume [572.8234]
_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  0.3513  0.0490  0.7078  1.0
  Sb  Sb1  4  0.0871  0.6686  0.6310  1.0
  Se  Se2  4  0.1719  0.0735  0.2141  1.0
  Se  Se3  4  0.3280  0.7422  0.4601  1.0
]