data_[Cs16Rb8Sb8Se32]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  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 [Fddd]
_cell_length_a [7.6858]
_cell_length_b [14.6110]
_cell_length_c [27.8623]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [70]
_chemical_formula_structural [Cs2RbSbSe4]
_chemical_formula_sum '[Cs16 Rb8 Sb8 Se32]'
_cell_volume [3128.8267]
_cell_formula_units_Z [8]
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
[
  Cs  Cs0  16  0.0000  0.0000  0.1912  1
  Rb  Rb1  8  0.0000  0.0000  0.0000  1
  Sb  Sb2  8  0.0000  0.0000  0.5000  1
  Se  Se3  32  0.0752  0.1433  0.6974  1
]