data_[Sr4Ce2O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ce  1.1200  1.8500  1.0800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pbam]
_cell_length_a [6.1560]
_cell_length_b [10.4640]
_cell_length_c [3.6349]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [55]
_chemical_formula_structural [Sr2CeO4]
_chemical_formula_sum '[Sr4 Ce2 O8]'
_cell_volume [234.1462]
_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
[
  Sr  Sr0  4  0.0631  0.6788  0.5000  1.0
  Ce  Ce1  2  0.0000  0.0000  0.0000  1.0
  O  O2  4  0.1427  0.1934  0.0000  1.0
  O  O3  4  0.2266  0.9578  0.5000  1.0
]