data_[Cs2Ce1Er1O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Cs  0.7900  2.6000  1.8100
  Ce  1.1200  1.8500  1.0800
  Er  1.2400  1.7500  1.0300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [6.2442]
_cell_length_b [3.6108]
_cell_length_c [7.2402]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.5696]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Cs2CeErO4]
_chemical_formula_sum '[Cs2 Ce1 Er1 O4]'
_cell_volume [156.4633]
_cell_formula_units_Z [1]
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  1  0.0000  0.5000  0.5000  1.0
  Cs  Cs1  1  0.5000  0.0000  0.5000  1.0
  Ce  Ce2  1  0.5000  0.5000  0.0000  1.0
  Er  Er3  1  0.0000  0.0000  0.0000  1.0
  O  O4  2  0.2126  0.5000  0.1597  1.0
  O  O5  2  0.2715  0.0000  0.8395  1.0
]