data_[Yb2Ce6Se6O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Yb  1.1000  1.7500  1.0840
  Ce  1.1200  1.8500  1.0800
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [8.2082]
_cell_length_b [4.1114]
_cell_length_c [13.4334]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [YbCe3Se3O4]
_chemical_formula_sum '[Yb2 Ce6 Se6 O8]'
_cell_volume [453.3373]
_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
[
  Yb  Yb0  2  0.0000  0.0000  0.0131  1
  Ce  Ce1  4  0.2374  0.0000  0.6767  1
  Ce  Ce2  2  0.5000  0.0000  0.0100  1
  Se  Se3  4  0.3273  0.0000  0.3550  1
  Se  Se4  2  0.0000  0.0000  0.3272  1
  O  O5  4  0.2462  0.0000  0.0898  1
  O  O6  2  0.0000  0.0000  0.5867  1
  O  O7  2  0.5000  0.0000  0.6026  1
]