data_[Sr8Ce4Be4O20]
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
  Be  1.5700  1.0500  0.5900
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Cmc2_1]
_cell_length_a [3.4907]
_cell_length_b [13.8614]
_cell_length_c [10.9996]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [36]
_chemical_formula_structural [Sr2CeBeO5]
_chemical_formula_sum '[Sr8 Ce4 Be4 O20]'
_cell_volume [532.2292]
_cell_formula_units_Z [4]
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  0.0000  0.0965  0.6700  1
  Sr  Sr1  4  0.0000  0.1261  0.3470  1
  Ce  Ce2  4  0.0000  0.1878  0.0407  1
  Be  Be3  4  0.0000  0.4449  0.4051  1
  O  O4  4  0.0000  0.0322  0.9857  1
  O  O5  4  0.0000  0.2945  0.6728  1
  O  O6  4  0.0000  0.3276  0.4045  1
  O  O7  4  0.0000  0.3411  0.0142  1
  O  O8  4  0.0000  0.4997  0.7840  1
]