data_[Rb4Ce2Au2Se8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Rb  0.8200  2.3500  1.6600
  Ce  1.1200  1.8500  1.0800
  Au  2.5400  1.3500  1.0700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [I-4]
_cell_length_a [8.0281]
_cell_length_b [8.0281]
_cell_length_c [8.5644]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [82]
_chemical_formula_structural [Rb2CeAuSe4]
_chemical_formula_sum '[Rb4 Ce2 Au2 Se8]'
_cell_volume [551.9809]
_cell_formula_units_Z [2]
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  2  0.0000  0.0000  0.0000  1
  Rb  Rb1  2  0.0000  0.5000  0.2500  1
  Ce  Ce2  2  0.0000  0.5000  0.7500  1
  Au  Au3  2  0.0000  0.0000  0.5000  1
  Se  Se4  8  0.1686  0.7400  0.5761  1
]